A new biomedical robot measuring just 0.95 millimeters (roughly 0.04 inches) in diameter has captured attention across the medical community. It is 60 percent smaller than similar instruments currently in use and promises more precise, minimally invasive surgery.



The tiny device has been developed at the School of Engineering of the Hong Kong University of Science and Technology <a href="https://seng.hkust.edu.hk/" target="_blank" rel="noreferrer noopener">(HKUST)</a>. The research team was led by Yajing Shen, an associate professor in the Department of Electronic and Computer Engineering.



The scientists tackled the challenge of creating a tool that combines ultra-compact size with fine-tuned navigation and various therapeutic functions.



<h2 class="wp-block-heading" id="h-smaller-robot-with-fewer-surgery-risks">Smaller robot with fewer surgery risks</h2>



The mini-robot can traverse tiny corridors, including those found in the <a href="https://www.earth.com/news/how-the-covid-19-virus-travels-deep-inside-our-lungs/">bronchi of the lungs</a> and the fallopian tubes. Physicians often struggle to deliver interventions in these slender regions, so this petite structure could expand diagnostic and therapeutic possibilities significantly.



It performs tasks such as laser ablation, tissue sampling, and drug delivery at the exact sites that need attention. Researchers see this as a potential method to reduce surgical damage and accelerate patient recovery.



Experts in robotics emphasize that smaller instruments pose fewer risks of injuring sensitive tissues. Delicate pathways can then be probed without large incisions or cumbersome endoscopes that obscure surgical views.



Such a shift could improve doctors’ ability to treat conditions early, particularly in organs with branching passages. <a href="https://www.earth.com/news/new-robot-could-revolutionize-breast-cancer-diagnosis/" target="_blank" rel="noreferrer noopener">Early access</a> often means swift actions and better treatment outcomes.



<h2 class="wp-block-heading" id="h-tiny-yet-powerful-robot">Tiny yet powerful robot</h2>



This ultra-compact surgical robot features multiple advanced components that work together in one tight layout. An optical fiber assembly captures images, while a microscopic 3D printing process produces a hollow skeleton that holds fibers and tools.



The engineers have coated it using a special magnetic spray technique, such that a functionalized skin is formed. This allows magnetic steering from outside the patient, which gives physicians a non-invasive way to guide the device.



A thin, gel layer covers the exterior to decrease friction and ensure smooth travel of the robot through winding channels. All of these steps aim to keep the robot tiny yet powerful.



At less than 0.04 inches across, it fits into places that many clinicians have never been able to reach with standard instruments, thus addressing a longstanding problem in surgical technology.



<h2 class="wp-block-heading" id="h-endoscopic-images-and-surgical-precision">Endoscopic images and surgical precision</h2>



In addition to its petite form, the <a href="https://www.nature.com/articles/s41467-024-55199-6" target="_blank" rel="noreferrer noopener">device</a> achieves approximately 30 micrometers of positional accuracy. This level of control helps surgeons target precise spots without straying into surrounding tissues.



Along with its accuracy, the robot detects blockages at distances up to about 9.4 millimeters (0.37 inches). This figure is roughly a tenfold increase over older endoscopic robots, which often fell short when navigating or scanning for obstructions.



In addition, a broad field of view - around 25 times larger than some conventional systems - lets doctors gather detailed images from a single vantage point. This is particularly useful in branching areas where strong visual feedback is needed to prevent collisions or misplacements.



Such imaging and obstacle detection capacities are crucial when weaving through body structures that branch unpredictably. Enhanced awareness can give physicians more confidence in exploring these obscure regions.



<h2 class="wp-block-heading" id="h-lab-evaluations-and-real-tissue-tests">Lab evaluations and real tissue tests</h2>



The researchers assessed the robot in <a href="https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/in-vitro-studies#:~:text=In%20vitro%20studies%20in%20experimental,From%3A%20Animal%20Biotechnology%2C%202014" target="_blank" rel="noreferrer noopener">in vitro studies</a> of <a href="https://pubmed.ncbi.nlm.nih.gov/34547790/" target="_blank" rel="noreferrer noopener">bronchial networks</a>, and confirmed smooth motion control. They then tested it on extracted pig lungs, and found it could gather images and perform minor treatments where standard scopes struggle.



“Small-scale continuum robots hold promise for interventional diagnosis and treatment, yet existing models often struggle with compactness, precise navigation, and visualized functional treatment all in one,” said Professor Shen.



<h2 class="wp-block-heading" id="h-opportunities-for-specialized-treatments">Opportunities for specialized treatments</h2>



<a href="https://www.earth.com/news/new-blood-test-diagnoses-heart-attacks-in-minutes-not-hours/">Early detection</a> often means better outcomes for patients. By traveling into narrow organ branches, doctors might detect infections, tumors, or other anomalies that were previously difficult to reach.



With local drug delivery, the therapy remains concentrated in the area of the target, thus sparing the rest of the body from unnecessary exposure. Such specificity may reduce medication dosages and side effects.



<h2 class="wp-block-heading" id="h-reducing-surgical-burdens">Reducing surgical burdens</h2>



Smaller incisions generally mean less pain, lower infection risk, and quicker healing. The robot could decrease surgery trauma by limiting how much tissue is moved or cut.



Once inside, it can complete multiple tasks in one session, limiting the need for additional procedures. This efficiency could save time for patients and clinics alike.



<h2 class="wp-block-heading" id="h-path-to-clinical-acceptance">Path to clinical acceptance</h2>



The research team hopes to conduct <a href="https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/in-vivo-studies" target="_blank" rel="noreferrer noopener">in vivo studies</a> next. They aim to confirm whether the robot can navigate real physiological conditions with the same level of agility.



“We aim to further optimize the design and control of the fiberscopic robot, prioritizing safety and reliability during interventional surgery,” said Dr. Zhang Tieshan, a postdoctoral fellow at HKUST. 



Fine-tuning the technology will help doctors integrate it seamlessly into everyday practice.



<h2 class="wp-block-heading" id="h-testing-the-robot-for-surgery">Testing the robot for surgery</h2>



In the long-term, experts predict that more integrated features could be added, such as advanced imaging modes, automated motion guidance and specialized accessories. 



These extra elements could expand the range of possible interventions without increasing the robot's size.



Any improvements would, however, have to undergo careful testing to confirm they are <a href="https://www.earth.com/news/nanotech-material-graphene-passes-human-safety-tests/">safe for human use</a>.



Progress in material science and software development could also improve durability, navigation algorithms, and data processing. If tests results match the early promise, hospitals may adopt these tools to enhance their standards of care.



The study is published in <a href="https://www.nature.com/articles/s41467-024-55199-6" target="_blank" rel="noreferrer noopener">Nature Communications</a>.



-----



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World's smallest robot could transform minimally invasive surgery

A new biomedical robot measuring just 0.95 millimeters (roughly 0.04 inches) in diameter has captured attention across the medical community. It is 60 percent smaller than similar instruments currently in use and promises more precise, minimally invasive surgery. The tiny device has been developed at the School of Engineering of the Hong Kong University of Science and Technology (HKUST). The research team was led by Yajing Shen, an associate professor in the Department of Electronic and Computer Engineering. The scientists tackled the challenge of creating a tool...

<div>The effects of man-made climate change can hamper scientific projections of how key global weather patterns will act in the future, a new study has revealed.</div>
<div>

The pivotal study, carried out by a team of international researchers, has shown that 'multiple' environmental influences can stymie predictions of how mid-latitude storms could behave.

Professor Mark Baldwin, Head of Mathematics at the University of Exeter and co-author of the paper said: "The study frames the important problem of what factors influence the paths of storms, and explores the possible future changes to storms and precipitation as climate changes."

Specifically, the study looks at how a series of environmental forces such as enhanced surface warming in the Arctic - known as Arctic amplification - will impact the position of storm tracks. These are regions where storms travel from west to east across oceans and continents, driven by the prevailing jet stream.

The study suggests that there is a 'tug of war' between how these different environmental forces could change the position of the storm tracks.

Crucially, such major changes could significantly impact many of the most iconic cities worldwide - including New York, Chicago, London, Tokyo, Cape Town and Melbourne - because they shape temperature, precipitation and extreme weather.

The study, a review of the latest research in the field, is published in leading scientific journal Nature Geoscience.

In idealized and comprehensive climate model simulations, warming due to increased carbon dioxide concentration in the atmosphere leads the clouds in high latitudes to reflect more solar radiation - thereby cooling the earth's surface in those regions and increasing the temperature gradient between the equator and the poles. In isolation (the amount of solar energy reaching the Earth's surface) this would lead to a poleward shift of the storm tracks.

Meanwhile, those same clouds tend to enhance the greenhouse effect, thereby warming the Earth's surface in those same regions and decreasing the temperature gradient between the equator and the poles, producing an opposite shift (also, in isolation).

Dr Tiffany S. Shaw, assistant professor in geophysical sciences at the University of Chicago and lead author of the paper added: "Changes in the position of storm tracks in response to anthropogenic climate change depend on how the equator-to-pole temperature gradient will change, and among the various factors affecting this gradient, cloud changes stand out as one of the important pieces of the puzzle.

The study found many examples of opposing influences affecting the position of storm tracks. These included the opposing influence of warming in the tropical upper atmosphere and Arctic amplification (enhanced surface warming in the Arctic), both of which occur in models in response to climate change.

Ultimately, any major changes in the position of storm tracks will have a significant impact on society because storm tracks shape temperature, precipitation, and extreme weather.

"The opposing cloud influences on the equator-to-pole gradient should be studied in more detail to understand the ultimate outcome of this 'tug of war' as it relates to the future position of the storm tracks," Shaw said.

The researchers have now called for expanding observational efforts and the hierarchy of computer simulations used to understand how storm tracks will shift in response to the increased concentration of carbon dioxide in the atmosphere.

Such shifts in position have the potential to significantly change patterns of rain, snow, heat waves and cold outbreaks. For example, if storm tracks shift poleward, New York and Chicago will likely experience warmer weather and less snow. And there's already evidence that the shift of the austral storm track southward - which was caused by the ozone hole at the South Pole -has impacted rain in Australia and South America.
###
The Nature Geoscience review article, titled Storm track processes and the opposing influences of climate change, grew out of a conference held last year in Grindelwald, Switzerland, that was sponsored by the National Science Foundation and The World Climate Research Program.

</div>

Man-made climate change can hamper weather forecasts

The effects of man-made climate change can hamper scientific projections...

<div>Researchers reporting in the journal Current Biology show catastrophic declines in wilderness areas around the world over the last 20 years. They demonstrate alarming losses comprising a tenth of global wilderness since the 1990s - an area twice the size of Alaska and half the size of the Amazon. The Amazon and Central Africa have been hardest hit.</div>
<div>

The findings underscore an immediate need for international policies to recognize the value of wilderness areas and to address the unprecedented threats they face, the researchers say.

"Globally important wilderness areas--despite being strongholds for endangered biodiversity, for buffering and regulating local climates, and for supporting many of the world's most politically and economically marginalized communities--are completely ignored in environmental policy," says Dr James Watson of the University of Queensland in Australia and the Wildlife Conservation Society in New York. "Without any policies to protect these areas, they are falling victim to widespread development. We probably have one to two decades to turn this around. International policy mechanisms must recognize the actions needed to maintain wilderness areas before it is too late. We probably have one to two decades to turn this around."

Watson says much policy attention has been paid to the loss of species, but comparatively little was known about larger-scale losses of entire ecosystems, especially wilderness areas which tend to be relatively understudied. To fill that gap, the researchers mapped wilderness areas around the globe, with "wilderness" being defined as biologically and ecologically intact landscapes free of any significant human disturbance. The researchers then compared their current map of wilderness to one produced by the same methods in the early 1990s.

This comparison showed that a total of 30.1 million km2 (around 20 percent of the world's land area) now remains as wilderness, with the majority being located in North America, North Asia, North Africa, and the Australian continent. However, comparisons between the two maps show that an estimated 3.3 million km2 (almost 10 percent) of wilderness area has been lost in the intervening years. Those losses have occurred primarily in South America, which has experienced a 30 percent decline in wilderness, and Africa, which has experienced a 14 percent loss.

"The amount of wilderness loss in just two decades is staggering" Dr Oscar Venter of the University of Northern British Colombia. "We need to recognize that wilderness areas, which we've foolishly considered to be de-facto protected due to their remoteness, is actually being dramatically lost around the world. Without proactive global interventions we could lose the last jewels in nature's crown. You cannot restore wilderness, once it is gone, and the ecological process that underpin these ecosystems are gone, and it never comes back to the state it was. The only option is to proactively protect what is left".

Watson says that the United Nations and others have ignored globally significant wilderness areas in key multilateral environmental agreements and this must change.

"If we don't act soon, there will only be tiny remnants of wilderness around the planet, and this is a disaster for conservation, for climate change, and for some of the most vulnerable human communities on the planet," Watson says. "We have a duty to act for our children and their children."
###
Watson et al.: "Catastrophic Declines in Wilderness Areas Undermine Global Environment Targets" <a href="http://www.cell.com/current-biology/fulltext/S0960-9822(16)30993-9" target="_blank" rel="noopener">http://www.cell.com/current-biology/fulltext/S0960-9822(16)30993-9</a>

WCS (Wildlife Conservation Society)

MISSION: WCS saves wildlife and wild places worldwide through science, conservation action, education, and inspiring people to value nature. To achieve our mission, WCS, based at the Bronx Zoo, harnesses the power of its Global Conservation Program in nearly 60 nations and in all the world's oceans and its five wildlife parks in New York City, visited by 4 million people annually. WCS combines its expertise in the field, zoos, and aquarium to achieve its conservation mission. Visit: <a href="http://newsroom.wcs.org/" target="_blank" rel="noopener">newsroom.wcs.org</a> Follow: <a href="http://www.twitter.com/WCSNewsroom" target="_blank" rel="noopener">@WCSNewsroom</a>. For more information: 347-840-1242.

</div>

Study: 10 percent of global wilderness has been lost since 1990

Researchers reporting in the journal Current Biology show catastrophic declines...

<div>
<div class="img-wrapper">As global temperatures rise, how will lake ecosystems respond? As they warm, will lakes -- which make up only 3 percent of the landscape, but bury more carbon than the world's oceans combined -- release more of the greenhouse gases carbon dioxide and methane? And might that create a feedback loop that leads to further warming?</div>
To predict the effects of rising air temperatures on the carbon cycle of lakes, Rensselaer Polytechnic Institute researchers will link computer models of changing weather, water temperature, and emissions of carbon dioxide and methane for 2,000 lakes across the United States, including Lake George, through 2105. The project is supported with a $300,000 grant from the National Science Foundation, and led by Kevin Rose, an assistant professor in the Department of Biological Sciences at Rensselaer and the Frederic R. Kolleck '52 Career Development Chair in Freshwater Ecology.

"We know lakes are important in the global carbon cycle -- absorbing and emitting carbon- - and that's critical to regulating global air temperatures. But we don't know how the role of lakes will change as a result of rising air temperatures," said Rose. "Right now, we can model changes for an individual lake -- using characteristics like surface area, depth, water clarity, and temperature profile -- but to be useful as a planning and research tool, we need to work on a much larger scale."

Carbon enters a lake as organic matter (such as falling leaves or soil suspended in runoff) and is cycled through the food chain, feeding plants and then animals. Some carbon settles to the lake bottom and is buried in sediment, but some is released back into the atmosphere as carbon dioxide and methane. As with all biological processes, lake emissions are temperature dependent, rising and falling along a temperature gradient. The challenge in predicting lake emissions for thousands of lakes across the country lies in the enormous variety of characteristics from lake to lake.

To tackle that challenge, the project will forecast future weather conditions for 2,000 lakes over the next 90 years using high-resolution weather forecasting models and projections of climate change provided by the Intergovernmental Panel on Climate Change.

In the second phase of the project, the team will draw upon the U.S. Environmental Protection Agency (EPA) National Lakes Assessment, a statistical survey that tracks chemical, biological, and physical characteristics of the target lakes. By feeding those characteristics and the forecasted weather data into an existing open source hydrodynamic model, the team will generate predicted changes in lake thermal characteristics such as the temperature profile (mapping temperature according to depth), depth of temperature stratification, and ice cover.

The team is able to calibrate and validate the model by running the model back through time, as far back as 1979, and comparing their results with recorded weather and lake temperature data available from the North American Land Data Assimilation System and the EPA National Lakes Assessment.

The team will then use the resulting lake temperature data to estimate changes in lake metabolism -- the absorption versus emission of carbon--and seek to draw conclusions based on those estimates, such as differences based on region or specific characteristics of lakes.

"The goal is to close the loop between long-term changes in atmospheric carbon dioxide, leading to global temperature increases, leading to changes in lake water temperature, leading to changes in the role of lakes in the global carbon cycle," Rose said. "In other words, how much carbon dioxide is going to come out of lakes with more carbon dioxide in the atmosphere -- is there going to be positive feedback?"

Rose's research fulfills the vision of The New Polytechnic, an emerging paradigm for higher education which recognizes that global challenges and opportunities are so great they cannot be adequately addressed by even the most talented person working alone. Rensselaer serves as a crossroads for collaboration--working with partners across disciplines, sectors, and geographic regions -- to address complex global challenges, using the most advanced tools and technologies, many of which are developed at Rensselaer. Research at Rensselaer addresses some of the world's most pressing technological challenges -- from energy security and sustainable development to biotechnology and human health. The New Polytechnic is transformative in the global impact of research, in its innovative pedagogy, and in the lives of students at Rensselaer.
###
About Rensselaer Polytechnic Institute

Rensselaer Polytechnic Institute, founded in 1824, is America's first technological research university. The university offers bachelor's, master's, and doctoral degrees in engineering; the sciences; information technology and web sciences; architecture; management; and the arts, humanities, and social sciences. Rensselaer faculty advance research in a wide range of fields, with an emphasis on biotechnology, nanotechnology, computational science and engineering, data science, and the media arts and technology. The Institute has an established record of success in the transfer of technology from the laboratory to the marketplace, fulfilling its founding mission of applying science "to the common purposes of life." For more information, please visit <a href="http://www.rpi.edu/" target="_blank" rel="noopener">http://www.rpi.edu</a>.

</div>

How do lakes impact global warming?

As global temperatures rise, how will lake ecosystems respond? As...

<div><img class="ff-og-image-inserted" src="http://www.earth.com/wp-content/uploads/2016/09/media.eurekalert.orgmultimedia_prodpubweb123323_web-9bfc26009ea1bc2a375496dc2c1668b17f0494d3.jpg" /></div>
IMAGE: Seasonality of bird migration is shifting in response to climate change. <a href="http://www.eurekalert.org/multimedia/pub/123323.php">view more </a>
<div>

A University of Oklahoma study demonstrates for the first time that remote sensing data from weather surveillance radar and on-the-ground data from the eBird citizen science database both yield robust indices of migration timing, also known as migration phenology. These indices can now be used to address the critical gap in our knowledge regarding the cues that migrants use for fine tuning their migration timing in response to climate.

"These scientists combined citizen science observations with data from radar, satellites and weather predictions to understand the cues birds use in their migrations across continents," said Liz Blood, program director in the National Science Foundation's Division of Environmental Biology, which funded the research through NSF's MacroSystems Biology Program. "The results show that birds migrate in time with warming temperatures in spring and with seasonal changes in the surface of the land, like the leafing-out of trees."

Seasonality of bird migration is shifting in response to climate change and, as a result, birds are arriving at their northern breeding grounds earlier in the spring. The OU study conducted in the eastern United States uses two novel data sources, weather surveillance radar and eBird citizen science data, to build indices of bird migration timing. These indices are innovative and reflect timing of migration of millions of birds of many species over large regions, expanding on more traditional measures of migration timing based on a few individuals of a particular species.

OU researchers compared these new measures of migration with environmental cues that are thought to be used by birds to adjust migration timing. They found that temperature is likely to be useful to migrants in making adjustments in timing in route, however, they dispute the notion that a commonly used index of vegetation greenness is a useful cue for migration timing in the study region.

OU Professors Jeffrey F. Kelly, Todd Fagin and Eli S. Bridge, Oklahoma Biological Survey, and graduate student Kyle G. Horton, Department of Biology, OU College of Arts and Sciences; in collaboration with OU Professors Phillip B. Chilson, School of Meteorology, and Kirsten de Beurs, Department of Geography and Environmental Sustainability, OU College of Atmospheric and Geographic Sciences; and Phillip M. Stepanian, formerly with the Advanced Radar Research Center, worked together to demonstrate how migration timing relates to land surface phenology and temperature changes.

"Understanding which environmental cues link migration timing to patterns of global change is key to forecasting future responses of migration systems," said Kelly. "Novel data sources from the weather surveillance radar network and the eBird citizen science database enable development of a migration phenology index that can be used to answer this question in future studies."
###
A paper describing this study, "Novel measures of continental-scale avian migration phenology related to proximate environmental cues," was published online Sept. 6 by Ecosphere at <a href="http://www.esajournals.org/" target="_blank" rel="noopener">http://www.esajournals.org</a>. Funding for this project was provided by the National Science Foundation grant EF-1340921 and by the National Institute for Food and Agriculture of the U.S. Department of Agriculture award 2013-67009-20369.

For more information about eBird, jointly coordinated by the Cornell Laboratory of Ornithology and the National Audubon Society, visit <a href="http://www.birds.cornell.edu/citscitoolkit/projects/clo/eBird/" target="_blank" rel="noopener">http://www.birds.cornell.edu/citscitoolkit/projects/clo/eBird/</a>. Contact Jeffrey F. Kelly at <a href="mailto:jkelly@ou.edu">jkelly@ou.edu</a> for more information about this project and other related OU

</div>
<div>

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.

</div>

OU study demonstrates seasonality of bird migration in response to environmental cues

IMAGE: Seasonality of bird migration is shifting in response to climate...

<div>Ocean warming is affecting humans in direct ways and the impacts are already being felt, including effects on fish stocks and crop yields, more extreme weather events and increased risk from water-borne diseases, according to what has been called the most comprehensive review available on the issue, launched today by the International Union for Conservation of Nature (IUCN) at the IUCN World Conservation Congress in Hawai'i. Ocean warming is already impacting humans</div>
<div>

The report, Explaining ocean warming: Causes, scale, effects and consequences, reviews the effects of ocean warming on species, ecosystems and on the benefits oceans provide to humans. Compiled by 80 scientists from 12 countries, it highlights detectable scientific evidence of impacts on marine life, from microorganisms to mammals, which are likely to increase significantly even under a low emissions scenario.

"Ocean warming is one of this generation's greatest hidden challenges - and one for which we are completely unprepared," says IUCN Director General Inger Andersen. "The only way to preserve the rich diversity of marine life, and to safeguard the protection and resources the ocean provides us with, is to cut greenhouse gas emissions rapidly and substantially."

Ocean warming is already affecting ecosystems from polar to tropical regions, driving entire groups of species such as plankton, jellyfish, turtles and seabirds up to 10 degrees of latitude towards the poles, causing the loss of breeding grounds for turtles and seabirds, and affecting the breeding success of marine mammals, according to the report.

By damaging fish habitats and causing fish species to move to cooler waters, warming oceans are affecting fish stocks in some areas and are expected to lead to reduced catches in tropical regions, the report states.

In East Africa and the Western Indian Ocean, for example, ocean warming has reduced the abundance of some fish species by killing parts of the coral reefs they depend on, adding to losses caused by overfishing and destructive fishing techniques. In South-East Asia, harvests from marine fisheries are expected to fall by between 10% and 30% by 2050 relative to 1970-2000, as the distributions of fish species shift, under a high 'business as usual' greenhouse gas emission scenario, the report states.

"Most of the heat from human-induced warming since the 1970s - a staggering 93% - has been absorbed by the ocean, which acts as a buffer against climate change, but this comes at a price. We were astounded by the scale and extent of ocean warming effects on entire ecosystems made clear by this report," says Dan Laffoley, Marine Vice Chair of the World Commission on Protected Areas at IUCN, and one of the lead authors.

The report also highlights evidence that ocean warming is causing increased disease in plant and animal populations, and impacting human health as pathogens spread more easily in warmer waters, including cholera-bearing bacteria and harmful algal blooms that cause neurological diseases like ciguatera.

Warming oceans are also affecting the weather, with a range of knock-on effects on humans. The number of severe hurricanes has increased at a rate of around 25-30% per degree of global warming, the report states.

Ocean warming has led to increased rainfall in mid-latitudes and monsoon areas, and less rain in various sub-tropical regions. These changes will have impacts on crop yields in important food-producing regions such as North America and India, according to the report.

The protection against climate change offered to us by oceans and their ecosystems - such as absorbing large amounts of CO2 and sheltering us from storms and erosion - is also likely to reduce as the ocean warms, according to the report.

The report's recommendations include recognising the severity of ocean warming impacts on ocean ecosystems and the benefits they provide to humans, expanding marine protected areas, introducing legal protection for the high seas, better evaluating the social and economic risks associated with warming oceans and continuing to fill gaps in scientific knowledge, as well as cutting greenhouse gas emissions rapidly and substantially.

Ocean conservation is one of the major themes addressed by the ongoing IUCN Congress, where IUCN Members will vote on motions related to protecting the high seas and protected areas in Antarctica among many others.
###
For more information, please contact:

(In Hawaii) Ewa Magiera, IUCN Media Relations, m +1 8086751459 / m +41 76 505 33 78, e-mail <a href="mailto:ewa.magiera@iucn.org">ewa.magiera@iucn.org</a>
IUCN Congress Media Team, e-mail: <a href="mailto:congressmedia@iucn.org">congressmedia@iucn.org</a>

About IUCN

IUCN, International Union for Conservation of Nature, helps the world find pragmatic solutions to our most pressing environment and development challenges. IUCN's work focusses on valuing and conserving nature, ensuring effective and equitable governance of its use, and deploying nature-based solutions to global challenges in climate, food and development. IUCN supports scientific research, manages field projects all over the world, and brings governments, NGOs, the UN and companies together to develop policy, laws and best practice. IUCN is the world's oldest and largest global environmental organisation, with almost 1,300 government and NGO Members and more than 15,000 volunteer experts in 185 countries. IUCN's work is supported by almost 1,000 staff in 45 offices and hundreds of partners in public, NGO and private sectors around the world. <a href="http://www.iucn.org/" target="_blank" rel="noopener noreferrer">http://www.iucn.org</a>

</div>

Ocean warming is already impacting humans

Ocean warming is affecting humans in direct ways and the...

Obama has quietly transformed US energy policy. Mostly unnoticed amid the political brawl over climate change, the United States has undergone a quiet transformation in how and where it gets its energy during Barack Obama's presidency, slicing the nation's output of polluting gases that are warming Earth.
As politicians tangled in the U.S. and on the world stage, the U.S. slowly but surely moved its energy policy away from emissions-spewing coal and toward cleaner fuels like natural gas, nuclear, wind and solar. The shift has put the U.S. closer to achieving the goal Obama set to cut emissions by more than a quarter over the next 15 years, but experts say it is nowhere near enough to prevent the worst effects of global warming.
The overlooked changes took center stage Saturday in China. Obama and Chinese President Xi Jinping entered the world's two worst polluters into a historic agreement to ratchet down heat-trapping pollution. Obama hailed "the investments that we made to allow for incredible innovation in clean energy."
U.S. Department of Energy statistics show jolts in where America gets its volts:
-In 2008, 48 percent of America's electricity came from coal, the dirtiest power source; now it's about 30 percent. That's less than the combined U.S. output of carbon-free nuclear and renewable energy.
-There are now more than three solar power jobs in the U.S. for every job mining coal.
-In just the first five months of 2016, more solar power was generated than 2006 through 2012.
-In 2008, the U.S. imported about two-thirds of its oil, and politicians spoke longingly of energy independence. Now, America imports less than half its oil.
-U.S. emissions of carbon dioxide - the main greenhouse gas - are down more than 10 percent, and this year is on pace to be the lowest in about a quarter-century.
"There were gigantic changes happening in the energy world, gigantic tectonic changes," said Peter Fox-Penner of the Boston University Institute for Sustainable Energy. "It's a sea change. There is no question."
Facing steep obstacles in Congress, Obama never aggressively pursued new emissions-curbing legislation, aside from a half-hearted attempt at cap-and-trade in his first term that was politically disastrous for Democrats. Instead, he relied on executive authority and regulations at home while largely going above lawmakers' heads by focusing on brokering global deals to curb carbon and other greenhouse gases.
So how much credit does Obama deserve? And how much was completely outside his control? That debate is playing out in Obama's final months in office, as the president tries to go out with a bang on climate and the environment.
Jack Gerard, president of the American Petroleum Institute, the oil and gas lobby, pointed out that Obama pitched his sweeping pollution limits on coal-fired power plants as the main driver of lower future emissions - but the courts have put those rules indefinitely on hold. Meanwhile, emissions have fallen due to a dramatic increase in cleaner-burning natural gas, which Obama was slow to try to regulate.
"We are leading the world in carbon reductions today, and it's driven primarily by cleaner-burning, affordable natural gas that was brought to you by innovation and technological advances in the oil and natural gas industry," Gerard said.
But Brian Deese, Obama's senior adviser, said the seeds of the fracking technology that enabled the natural gas revolution were found in federal Energy Department research conducted in the 1970s. He noted that the people who warned Obama's policies - like his "Clean Power Plan" emissions limits - would be disastrous are the same people now celebrating the natural gas revolution.
"You can't on the one hand argue that the Clean Power Plan is an overarching regulation that's going to impose all these costs, enforce all these changes in the industry, and on the other hand argue that change is happening independent of what government is doing and therefore these regulations are meaningless," Deese said in an interview.
The advent of fracking, or hydraulic fracturing, produced much more natural gas, which became much cheaper and elbowed out coal as America's fuel of choice. That has surprised all sorts of experts.
In 2000, Dana Fisher, director of the University of Maryland's Program for Society and the Environment, predicted the U.S. was unlikely to wean itself off coal because it was cheap and plentiful. And John Reilly of MIT's Joint Program on the Science and Policy of Global Change, predicted heat-trapping gas emissions would grow.
Both admit they were wrong, with an embarrassed Reilly calling the subsequent decline "a dramatic turnaround from what everyone has expected."
<a href="http://www.earth.com/news/coal-plants-closed-trump/">Obama</a> had little to do with the fracking boom, except to not get in the way with regulations, energy experts said. But Obama pushed through 2009's stimulus package that goosed spending and research in renewables, like solar, wind and hydro. His administration also increased fuel mileage requirements for cars and trucks and ratcheted up appliance and building energy efficiency standards.
"His war is against fossil fuels, and natural gas is a fossil fuel," said Sen. Jim Inhofe, R-Okla., the Senate's most prominent climate change doubter. "You can't separate that out and say it's somehow different than other fossil fuels. It's not."
Natural gas is a "bridge fuel" from coal, which spews about twice as much heat-trapping carbon dioxide, but America still needs to wean itself from that fossil fuel too, said Granger Morgan, Carnegie Mellon University engineering and public policy professor.
And there are some downsides to these significant changes - like higher power bills in a few places - said Jeff Holmstead, a Bush-era environmental official who lobbies for utilities that depend on coal.
"It's a shame that we've shut down a lot of plants that were continuing to provide low-cost power," Holmstead said.
The change in America's energy supply is still too slow and pollution cuts are not enough to prevent dangerous global warming, Morgan said, adding "but it's certainly better than the alternative, which is continuing to sail on as if we weren't heading into the big storm."
---
Borenstein reported from Washington.
---
Follow Seth Borenstein at <a href="http://twitter.com/borenbears">http://twitter.com/borenbears</a> and Josh Lederman at<a href="http://twitter.com/joshledermanAP">http://twitter.com/joshledermanAP</a>
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Obama has quietly transformed US energy policy

Obama has quietly transformed US energy policy. Mostly unnoticed amid...

California Chinook salmon almost extinct due to drought. The sleek, flapping salmon that fishermen hauled aboard the rolling Salty Lady charter boat near the Golden Gate Bridge were the survivors of the survivors.
After five years of drought, the native Chinook salmon that the men were reeling in this past week were there only because state and federal agencies have stepped in to do much of the salmon-raising that California's overtapped rivers once did. Most of the fish were born at the agencies' hatcheries and carried in trucks for release downstream.
As the men watched and waited for one of their fishing poles to dip sharply, Victor Gonella, president of the Golden Gate Salmon Association, remembered his childhood in the 1950s and 1960s when the salmon population was healthy enough that he could fish most months.
Gonella recounted fishermen struggling to land salmon that had made their way to the Pacific Ocean from the San Joaquin River in particular, the fish powerful from muscling their own way from river to ocean.
These days, he said, "if it weren't for these fish that were trucked, we wouldn't be fishing."
The San Joaquin River has been dry for dozens of miles at a stretch for decades, its water diverted to booming farms and cities.
With the drought bringing one of the driest periods in <a href="http://www.earth.com/image/tule-fog-across-californias-central-valley/">California's</a> history, federal and state authorities increasingly have had to intervene mechanically to carry out key stretches of the life cycle of salmon, whose numbers were already declining.
In 2014 and 2015, authorities reared millions of young salmon in artificial hatcheries and trucked them downstream to keep the fishing industry's mainstay supply of fall-run Chinook salmon afloat.
Another kind of California Chinook salmon, the winter-run, won federal listing in 2015 as one of the eight U.S. species most in danger of imminent extinction, after too-low and too-warm water in state rivers all but wiped out the 2014 and 2015 populations of the youngest winter-run salmon.
Not all salmon from state and federal hatcheries are tagged, but on this day, after hours of fishing, two of the nine <a href="https://www.bing.com/search?q=salmon&amp;cvid=91719507e15d464d8bcdd1496fdc218d&amp;FORM=ANAB01&amp;PC=HCTS">salmon</a> that were caught bear the clipped fin and tiny metal tag of hatcheries.
Management of California's river water is a balancing act that's often described as fish versus farmers. With dams blocking more than 90 percent of the salmon's original river habitat, agencies have struggled in the drought to release enough water at the right times to suit the needs of both crops and wildlife in the San Francisco Bay-Delta complex, the West Coast's largest estuary.
Because the salmon grow, spawn and die in three-year cycles, the troubles of 2014 and 2015 made it "critical that everything go well this year" for winter-run salmon in particular, said Jason Roberts, a fisheries supervisor for the California Department of Fish and Wildlife.
So far, Chinook appear for now to have caught the critical break they needed, thanks to rain and snow from El Nino-related storms this past winter.
Chinook salmon are an anchor species in California, not just for the state's estimated $1.4 billion commercial and sport fishing salmon industry, but for the health of land, river and ocean habitats. Because salmon divide their lives between the ocean and rivers, they provide food for animals ranging from orcas to bears and eagles. Once the fish die upstream, their decomposing bodies supply nitrogen that helps sustain forests.
Along with putting the winter-run salmon on the highly endangered list, federal authorities announced this year that they would formally review their management of key state waterways and reservoirs with regards to survival of native species.
Farmers and some fishermen envision a different future for salmon, with more machinery aiding their life cycle and less water.
Paul Wenger, an almond farmer and president of the California Farm Bureau Federation, has urged water managers, unsuccessfully so far, to consider widespread use of prototype mist incubators, touted to hatch larger numbers of salmon eggs in temperature-controlled machines using a fraction of the water the eggs would get in river beds.
Gonella, the fishing industry representative, thinks California's hatcheries might have to be moved to the oceanside, eliminating young salmon's ancient migration down rivers that now have too little water.
Environmental groups want agencies to go the other way, with less machinery and more water.
"The fact that these fish can no longer survive in the system that they've become genetically adapted to over how many centuries says something about how badly we're managing the system," said Kate Poole, a senior attorney with the Natural Resources Defense Council. "What we really need to focus on is creating healthy river conditions so these fish can survive and thrive in the wild."
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California Chinook salmon almost extinct due to drought

California Chinook salmon almost extinct due to drought. The sleek,...

Wolf pack killings in Washington spark controversy. The on-going extermination of a wolf pack in Washington has prompted a university to disavow statements by one of its professors in defense of wolves - the latest development in a controversy that pits conservationists against cattle ranchers in a part of the state far from the populous <a href="https://www.bing.com/search?q=seattle&amp;cvid=6095cb8e0e7b4797834977a31dbe761c&amp;FORM=ANAB01&amp;PC=HCTS">Seattle</a> metro area.
The Profanity Peak wolf pack is located in mountainous Ferry County, north of Spokane. State officials authorized exterminating the pack for killing at least six head of cattle grazing on public land in the Colville National Forest. So far, six wolves have been killed by hunters shooting from helicopters. Two adults and several pups remain.
The hunt has outraged environmental groups, who say wolves are natural predators that should not be killed in favor of cattle grazing at subsidized rates on public land.
"It's very, very troubling," said conservationist Amaroq Weiss of the Center for Biological Diversity, which has opposed the hunt.
The issue took an unusual twist this week, when <a href="http://www.earth.com/news/washington-state-wolf-killings/">Washington State </a>University publicly rebuked a faculty member who had spoken out in support of the wolves.
Recent statements by carnivore researcher Robert Wielgus that a rancher released his cattle on top of a wolf den were inappropriate and inaccurate and "contributed substantially to the growing anger and confusion about this significant wildlife management issue," WSU said in a statement Wednesday.
WSU disavowed comments by Wielgus, director of the school's Large Carnivore Conservation Lab, which were made to The Seattle Times. Wielgus "subsequently acknowledged that he had no basis in fact for making such a statement," WSU said. The school said the livestock were released more than four miles from the den site.
Another statement by Wielgus that none of the participants in his study, in which both wolves and cattle are radio-collared, experienced loss of livestock also was not true, WSU said.
"WSU apologizes to our friends, our science partners, and to the public for this incident," the school said.
Wielgus said Thursday he was no longer authorized to speak to the media.
Robert Strenge, a university spokesman, acknowledged the public rebuke was unusual.
"I can't recall in my 13 years (at WSU) ever seeing this sort of thing before," Strenge said.
The university's statement did not concern Wielgus' research or other work, Strenge said. Nor was it about expressing his opinion. It only involving the inaccuracy of Wielgus' statements, Strenge said.
Weiss said the WSU statement shows the political clout of the livestock industry.
"They don't want wolf research out of WSU," she said.
State Rep. Joel Kretz, R-Wauconda, who represents the sparcely-populated region where 75 percent of the state's wolf packs are located, said he met with university officials - including President Kirk Schulz - after Wielgus made his comments. Kretz said he demanded that WSU make public any action against the professor.
"The academic world usually doesn't do things like that," Kretz said. "Usually it's swept under the rug."
Kretz said ranchers had past problems with Wielgus' research on wolves and cattle.
Ranchers and state Department of Fish and Wildlife workers have received death threats, Kretz said.
Wolves were exterminated in Washington state early in the last century. They began moving back into the state in the early 2000s from neighboring Idaho and British Columbia. State officials estimate there are 90 wolves living in Washington, most of them in the remote northeastern corner of the state.
This is the third time in recent years that hunters hired by the state have killed wolves to protect livestock.
On Thursday, dozens of protesters gathered outside of the Washington Department of Fish and Wildlife offices in Olympia to decry the killing of the Profanity Peak pack. Many protesters carried pictures of wolves and signs that read "Protect The Wolves" and "Stop The Slaughter."
Meanwhile, Kretz and state Rep. Shelly Short, R-Addy, issued an op-ed this week defending the hunts.
"Wolf recovery has not been popular in NE Washington, and it's much deeper than simply a wolf advocate versus cattleman conflict," they wrote. "Our communities fear that our whole culture, our largely rural, pastoral way of life is on the verge of disappearing."
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Wolf pack killings in Washington spark controversy

Wolf pack killings in Washington spark controversy. The on-going extermination...

US and China ratify Paris Agreement on climate change. Setting aside their cyber and maritime disputes, President Barack Obama and China's President Xi Jinping on Saturday sealed their nations' participation in last year's Paris climate change agreement. They hailed their new era of climate cooperation as the best chance for saving the planet.
At a ceremony on the sidelines of a global economic summit, Obama and Xi, representing the world's two biggest carbon emitters, delivered a series of documents to U.N. Secretary-General Ban Ki-moon. The papers certified the U.S. and <a href="http://www.earth.com/image/historic-flooding-has-killed-hundreds-across-china/">China</a> have taken the necessary steps to join the Paris accord that set nation-by-nation targets for cutting carbon emissions. US and China ratify Paris Agreement on climate change
"This is not a fight that any one country, no matter how powerful, can take alone," Obama said of the pact. "Some day we may see this as the moment that we finally decided to save our planet."
Xi, speaking through a translator, said he hoped other countries would follow suit and advance new technologies to help them meet their targets. "When the old path no longer takes us far, we should turn to innovation," he said.
The formal U.S.-Chinese announcement means the accord could enter force by the end of the year, a faster than anticipated timeline. Fifty-five nations must join for the agreement to take effect. The nations that have joined must also produce at least 55 percent of global emissions.
Together, the U.S. and China produce 38 percent of the world's man-made carbon dioxide emissions.
The White House has attributed the accelerated pace to an unlikely partnership between Washington and Beijing. To build momentum for a deal, they set a 2030 deadline for China's emissions to stop rising and announced their "shared conviction that climate change is one of the greatest threats facing humanity." The U.S. has pledged to cut its emissions by at least 26 percent over the next 15 years, compared to 2005 levels.
The meeting of the minds on climate change, however, hasn't smoothed the path for other areas of tension. The U.S. has criticized China over cyberhacking and human rights and voiced increased exasperation with Beijing's growing assertiveness in key waterways in the region. Most recently, the U.S. has urged China to accept an international arbitration panel's ruling that sided with the Philippines in a dispute over claims in the South China Sea.
China views the South China Sea as an integral part of its national territory. The U.S. doesn't take positions in the various disputes between China and its Asian neighbors, but is concerned about freedom of navigation and wants conflicts resolved peacefully and lawfully.
Meeting Xi after the climate announcement, Obama said thornier matters would be discussed. He specifically cited maritime disputes, cybersecurity and human rights concerns, though the president didn't elaborate or stress the topics during brief remarks in front of reporters at the start of the meeting.
The ceremony opened what is likely Obama's valedictory tour in Asia. The president stepped off Air Force One onto a red carpet, where an honor guard dressed in white and carrying bayonets lined his path. A girl presented Obama with flowers and he shook hands with officials before entering his motorcade.
But the welcome didn't go entirely smoothly. A Chinese official kept reporters and some top White House aides away from the president, prompting a U.S. official to intervene. The Chinese official then yelled: "This is our country. This is our airport."
Throughout his tenure, Obama has sought to check China's influence in Asia by shifting U.S. military resources and diplomatic attention from the Middle East. The results have been mixed.
The Trans-Pacific Partnership, a massive trade deal the White House calls a cornerstone of the policy, is stuck in Congress. Obama planned to use the trip to make the case for approval of the deal before he leaves office in January.
Climate represents a more certain piece of his legacy.
Under the Paris Agreement, countries are required to set national targets for reducing or reining in their greenhouse gas emissions. Those targets aren't legally binding, but countries must report on their progress and update their targets every five years.
The state-run Xinhua News Agency reported Saturday that China's legislature had voted to formally enter the agreement. In the U.S., no Senate ratification is required because the agreement is not considered a formal treaty.
Li Shuo, Greenpeace's senior climate policy adviser, called Saturday's declarations "a very important next step."
If the deal clears the final hurdles, he said, "we'll have a truly global climate agreement that will bind the two biggest emitters in the world."
--
Louise Watt contributed to this report.
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US and China ratify Paris Agreement on climate change

US and China ratify Paris Agreement on climate change. Setting...

<div>
<div class="img-wrapper">NASA sees the twin towers of Tropical Storm Hermine. In order for Tropical Storm Hermine or any other tropical depression, to intensify there must be a pathway for heat energy from the ocean surface to enter the atmosphere. For Hermine, the conduit may have been one of the two "hot towers" that the Global Precipitation Measurement mission or GPM core satellite observed on Aug. 31 at 4:09 p.m. EDT (2009 UTC).</div>
A hot tower is a tall convective cell in which updrafts are strong enough to lift precipitation as high as the top of the troposphere. Updrafts this strong mean that a lot of moisture is condensing in this storm cell as the rain forms. The closer a hot tower is to the low-pressure center of a tropical depression, the more of the heat energy released in that tower is likely to "energize" the <a href="https://www.bing.com/search?q=tropical+depression&amp;cvid=58a5e2dab74c46ac871fd0c3e52d7005&amp;FORM=ANAB01&amp;PC=HCTS">tropical depression</a>, leading to a deepening of the low pressure center, and ultimately leading to an acceleration of the winds that circle the low-pressure center. NASA sees the twin towers of Tropical Storm Hermine

Two "hot towers" were seen south and east of the center. "One of them was closer to the low pressure center, and so it is more likely to be intimately involved with the strengthening of Hermine," said researcher Owen Kelley of NASA's Goddard Space Flight Center in Greenbelt, Maryland who created a 3-D image of the storm using GPM data.

"Repeated observations of cloud-top heights by geosynchronous satellites showed that these two towers were persistent features, lasting approximately 9 to 12 hours, from the evening of Aug. 31 into the morning of Sept. 1. Research performed by NASA scientists suggests that vigorous convection that persists this long can eject enough energy into the atmosphere to influence the fate of hurricanes and other tropical systems," Kelley said.
###
The GPM satellite is a joint mission of NASA and the Japan Aerospace Exploration Agency (JAXA).

For more information about GPM, please visit <a href="http://pmm.nasa.gov/" target="_blank" rel="noopener">http://pmm.nasa.gov</a> .

</div>

NASA sees the twin towers of Tropical Storm Hermine

NASA sees the twin towers of Tropical Storm Hermine. In...

Obama warns about global warming impact in the Pacific Atoll. President Barack Obama plunked down on a speck of coral reef in the middle of the Pacific Ocean on Thursday and gazed out at the turquoise waters of the marine monument he's widened to become the largest in the world.
Hundreds of rare birds fluttered in the skies halfway between Asia and North America as the president paid an unusual visit to Midway Atoll, one of the most remote areas of the ocean. Driving on a golf cart past dilapidated buildings left over from World War II, Obama said protecting the Pacific Atoll and its surroundings was critical to ensuring that delicate ecosystems survive the throes of global warming.Obama warns about global warming impact in the Pacific Atoll
"I look forward to knowing that 20 years from now, 40 years from now, 100 years from now, this is a place where people can still come to and see what a place like this looks like when it's not overcrowded and destroyed by human populations," Obama said, his shirt partially unbuttoned in the punishing island sun.
Few Americans have ever visited Midway, with its black-footed albatrosses and spinner dolphins - and that's exactly Obama's point. His visit to the atoll - home to fewer than 50 people - was carefully orchestrated to showcase natural beauty mostly untouched by humans, part of the president's bid to instill his calls for conservation with a sense of real-life urgency.
Squinting in the sunlight, Obama described Midway Atoll as "hallowed ground," a nod to the place it occupies in Native Hawaiian tradition. Yet Obama had a policy argument to make, too: It was critically important to examine what damage climate change is inflicting on communities in the Pacific Ocean.
"There are countries that now are at risk, and they have to move as a consequence of climate change," Obama said.
The president, who was born a short hop away in Honolulu, appeared particularly enthralled by a cluster of threatened green sea turtles - each the size of a tire - enjoying a bit of beach repose. "Unbelievable," he called them, peering out through sunglasses.
"When I grew up, you'd see these turtles all the time," Obama said. "But you'd never see them beaching like this, basking in the sun."
In a prelude to his visit, Obama last week expanded four-fold the Papahanaumokuakea Marine National Monument that surrounds Midway. Of the 7,000 species that live in the waters, 1 in 4 is found nowhere else in the world, the White House said.
Yet for all the pristine splendor, there were poignant reminders that even this dot of far-flung land hasn't been immune to human contamination. Along the muddy pathways the president traveled, brightly colored bits of plastic lined the ground - all remnants of albatrosses that had ingested waste washed ashore and then died with the bottle cap-shaped pieces in their guts.
Still, the wealth of biological diversity here is nearly unparalleled: millions of birds, hundreds of species of fish and marine invertebrates, green sea turtles and Hawaiian monk seals. More albatrosses live on Midway than anywhere else in the world.
The visit came as Obama uses his final months in office to try to lock in an aggressive legacy on climate change and environmental protection. After Midway, Obama planned to open his final trip to Asia on Saturday with a visit to <a href="https://www.earth.com/image/historic-flooding-has-killed-hundreds-across-china/">China,</a> a chance to showcase his unlikely partnership with President Xi Jinping on global warming.
The marine monument, created in 2006 by President George W. Bush, grows to 582,578 square miles under Obama's expansion, an area more than twice the size of Texas. Enlarging the monument reflects Obama's strategy of using his executive powers to put lands and waters off-limits to development, despite concerns from critics who oppose what they call his heavy-handed approach.
<a href="https://www.bing.com/search?q=obama&amp;cvid=812a8bdf93f84ec2a13ef83b3d8e35ec&amp;FORM=ANAB01&amp;PC=HCTS">Obama's</a> decision to expand the monument was the subject of fierce debate within Hawaii, with both sides invoking Native Hawaiian culture to argue why it should or shouldn't be expanded.
Supporters said the larger monument was needed to protect a place considered sacred by Native Hawaiians by making it off-limits to commercial fishing and recreational activities. But opponents argued the region is heavily dependent on fishing and can't afford the hit, adding that a federal ban would infringe on the traditions that ancient Hawaiians used to protect natural resources.
The White House estimated that the region's longline fishing industry would suffer about a 6 percent loss as a result of making the expanded area off-limits to commercial fishing. But Obama's aides argued fishermen could make up that deficit by increasing production elsewhere.
Getting Obama to Midway required an unusual degree of logistical gymnastics, considering that the atoll lacks cell service and other modern amenities and only a few dozen people live there. He hopped to Midway from Honolulu on a smaller version of Air Force One, landing on an airstrip that gained prominence when the Battle of Midway became a turning point in World War II.
---
Reach Josh Lederman on Twitter at <a href="http://twitter.com/joshledermanAP">http://twitter.com/joshledermanAP</a>
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Obama warns about global warming impact in the Pacific Atoll

Obama warns about global warming impact in the Pacific Atoll....

<div>
<div class="img-wrapper">
Hurricane Hermine is first hurricane to hit Florida in 10 years. Hurricane Hermine made landfall in Florida's Big Bend area early Friday as the first hurricane to hit the state in more than a decade, bringing soaking rain, high winds and thousands of power outages. Injuries were reported in Tallahassee as trees fell onto homes.
The Category 1 storm hit just east of St. Marks around 1:30 a.m. EDT with winds around 80 mph, according to the U.S. National <a href="http://www.earth.com/image/the-2020-atlantic-hurricane-season-was-supercharged/">Hurricane</a> Center. Hermine later weakened to a tropical storm as it moved farther inland.
Projected storm surges of up to 12 feet menaced a wide swath of the coast and an expected drenching of up to 10 inches of rain carried the danger of flooding along the storm's path over land, including the state capital Tallahassee, which hadn't been hit by a hurricane since Kate in 1985.
As of 8 a.m. EDT Friday, Hermine was weakening as it moved into southern <a href="https://www.bing.com/search?q=georgia&amp;cvid=1c28f63d36f7469381f1d522803e873b&amp;FORM=ANAB01&amp;PC=HCTS">Georgia</a>, with maximum sustained winds of 60 mph, the Hurricane Center said. It was centered about 35 miles northeast of Valdosta, Georgia, and was moving north-northeast near 14 mph.
After pushing through Georgia, Hermine was expected to move into the Carolinas and up the East Coast with the potential for drenching rain and deadly flooding.
In Tallahassee, high winds knocked trees onto several houses injuring residents inside, fire-rescue spokesman Mike Bellamy said. He said an unknown number were taken to area hospitals with injuries that weren't thought to be life-threatening. Bellamy said his agency responded to more than 300 calls overnight. Mayor Andrew Gillum estimated as many as 100,000 area residents were without electricity Friday morning.
At Florida's Keaton Beach, just south of the state's Big Bend where the peninsula meets the Panhandle, about two dozen people waited on a road just after sunrise Friday trying to get to their homes. Police had the road blocked because of flooding. Taylor County Commissioner Jody DeVane said several homes were damaged.
Dustin Beach, 31, rushed to Keaton Beach on Friday from a hospital in Tallahassee where his wife had given birth Thursday night to a girl.
"When my wife got up this morning she said, 'Go home and check on the house. I need to know where we're going after we leave the hospital,'" Beach said.
Cindy Simpson was waiting near her car, hoping her beach home and boats had made it. "It's a home on stilts so I put everything upstairs. We have two boats in the boat house and I hope they're still there," she said.
In Pasco County, north of Tampa, authorities said flooding forced 18 people from their homes in Green Key and Hudson Beach. Pasco County Fire Rescue and sheriff's deputies used high-water vehicles early Friday to rescue people from rising water. They were taken to a nearby shelter. The Sunshine Skyway Bridge that spans Tampa Bay remained closed Friday morning because of high winds.
In Wakulla County, south of Tallahassee, a couple suffered minor injuries during the storm when they drove into a tree that had fallen in the road, County Administrator Dustin Hinkel said early Friday. He said storm surge of 8 to 10 feet damaged docks and flooded coastal roads. At least seven homes were damaged by falling trees, said Scott Nelson, the county's emergency manager.
As Hermine moved north, Georgia Power estimated about 19,000 homes and businesses were without power statewide early Friday. Many of those were in Valdosta and surrounding Lowndes County, about 15 miles north of the Georgia-Florida line. Lowndes County spokeswoman Paige Dukes said crews were dealing with fallen trees and snapped power lines, but no injuries had been reported. Winds exceeding 55 mph had been recorded in the county, with 4 to 5 inches of rainfall, she said.
The last hurricane to strike Florida was Wilma, a powerful Category 3 storm that arrived on Oct. 24, 2005. It swept across the Everglades and struck heavily populated south Florida, causing five deaths in the state and an estimated $23 billion in damage.
Florida Gov. Rick Scott declared an emergency in 51 counties. He said 6,000 National Guardsmen were poised to mobilize for the storm's aftermath. The governors of Georgia and North Carolina also declared states of emergency.
---
Associated Press writers Freida Frisaro and Curt Anderson in Miami; Terry Spencer in Fort Lauderdale, Florida; Jason Dearen in Keaton Beach, Florida; Gary Fineout in Tallahassee, Florida; Russ Bynum in Savannah, Georgia, and Jeff Martin in Atlanta contributed to this report.
© 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Learn more about our Privacy Policy and Terms of Use.

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Hurricane Hermine is first hurricane to hit Florida in 10 years

Hurricane Hermine is first hurricane to hit Florida in 10...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Nushagak Bay, a large estuary in southwest Alaska. Nushagak runs mainly north to south and exits in Bristol Bay, a large body of water in the Bering Sea.



"The bay is primarily fed by the Nushagak River, which begins in the Alaska Range and flows southwest approximately 450 km. The bay is also fed by several additional rivers including the Wood, Igushik, Snake and Weary rivers," says ESA.



"The dark colors of the Nushagak River are most likely due to tannins or lignins (chemical substances found in plants). Tannins and lignins from roots, leaves, seeds, bark and soil can leach into the water and give it a brown or even black colour. The sediments then flow southwards where it is mixed with the bluer waters of the bay."



Video/ Image Credit: ESA



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Nushagak Bay in southwest Alaska

[sendtonews key="0ynNMYkMKa-2340414-12187" type="single"] Today’s Video of the Day from the...

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> (ACS) reveals that proteins on flu viruses are actually flexible, tilting and waving in a “breath-like” motion. According to the experts, these proteins could be used to better defend against the flu.



"The main antigenic targets of influenza virus are two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Whereas the structural and dynamical properties of both glycoproteins have been studied previously, the understanding of their plasticity in the whole-virion context is fragmented," wrote the researchers.



To investigate, the team conducted detailed simulations of the influenza A H1N1 virion, or the swine flu. The experts concluded that the visualizations show many new vulnerable states of flu viruses, which could improve future vaccines and antiviral drugs.



Video/ Image Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Flu viruses are more flexible than expected

[sendtonews key="G9bUoxcjr4-2511624-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Lake Trasimeno, which is located west of Perugia in central Italy. It is the fourth largest lake in the country. While Trasimeno’s water level varies, it has a maximum depth of approximately six meters.&nbsp;



"In this Copernicus Sentinel-2 image, captured on 6 August 2022, the lake’s emerald green colour is likely due to the presence of phytoplankton. Streaks in the water, particularly visible in the west, indicate the presence of soil and sediments which have been stirred up by winds. Dark colored waters in the southern part of the lake indicate a presence of submerged and floating macrophytes (aquatic plants) as well as algae," says ESA.



"Surrounded by hills on three sides, Trasimeno is subject to heavy storms created by winds, especially from the north and west. There are three islets in the lake: Maggiore, Minore and Polvese (the largest). The lake’s shores are sparsely inhabited with only two popular villages: Castiglione del Lago and Passignano sul Trasimeno."



"Italy is experiencing its worst drought in 70 years which has affected drinking water supplies, hydroelectric power and agricultural production. High temperatures, hot winds and lack of rainfall are the main causes of drought in the Umbrian region which saw Lake Trasimeno’s drop 1.3 m, reaching the limit of the hydrometric zero in July 2022."



Video/Image Credit: ESA&nbsp;



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Lake Trasimeno in Central Italy

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> describes a new self-powered nanosensor that can instantly detect mercury contamination with the tap of a finger.&nbsp;



The oxidized form of mercury can be harmful when it is ingested through contaminated water or food. This makes it necessary for experts to develop sensors that can quickly and accurately detect the presence of mercury.&nbsp;



Zong-Hong Lin and colleagues have now created a triboelectric nanosensor (TENS) that can detect mercury by simply by touching a sample. According to the researchers, their TENS could serve as the basis for similar devices to safely and remotely monitor other pollutants.



Video Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Detecting mercury contamination with the tap of a finger

[sendtonews key="LvS8v8bp9z-2564889-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Kainji Lake, a reservoir on the Niger River.



In 1968, Kainji Lake was created by the construction of the Kainji Dam. The Niger River, the third longest in Africa, enters the lake in the north.&nbsp;



According to <a href="https://www.earth.com/news/rivers-in-the-american-west-are-a-lifesaving-resource-for-birds/">ESA</a>, the creation of the lake submerged Foge Island and the town of Bussa and permanently flooded other riverine settlements, leaving around 50,000 people displaced.&nbsp;



Large parts of Foge Island are temporarily exposed during low water tides, and the land is often used by migrating fishermen. Kainji Dam is a dam across the Niger River in Niger State of Central Nigeria. 



Wild mammals occur at relatively low densities due to illegal hunting. Lake Kainji has suffered a dramatic decline as a fishery due to the high numbers of artisanal and subsistence fisherfolk using the lake. It has been suggested that a period of closure, together with controlled fishing rights may help improve fish stocks.



Kainji Lake National Park is the oldest of its kind in Nigeria. The park contains three distinct areas: a part of the Kainji Lake, the Borgu Game Reserve to the west of the lake, and the Zugurma Game Reserve to the southeast. The park is home to around 65 mammal species, 350 bird species, and 30 species of reptiles and amphibians. 



Video/ Image Credit: European Space Agency&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Kainji Lake in north central Nigeria

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Today’s Video of the Day from <a href="https://www.igb.illinois.edu/">Carl R. Woese Institute for Genomic Biology</a> reveals how scientists can modify common crops like soybean, rice, and wheat to protect them from heat stress.



“We need to double crop production by 2050 to feed a growing global population, and not only are we not on track to do that, but climate change is further complicating things,” said Amanda Cavanagh, a lecturer at the University of Essex. 



The study is part of Realizing Increased Photosynthetic Efficiency (RIPE), an international research project that aims to develop food crops that turn the sun’s energy into food more efficiently.



“Using an engineering approach we designed multiple alternative metabolic pathways to photorespiration. Testing them in the field showed increases in productivity which led Amanda to significantly move the project forward by showing our engineered plants can withstand pretty extreme temperature stress,” said study co-author and RIPE researcher Paul South.&nbsp;



“As the climate changes and temperature stresses increase the pressure on our global food supply, farmers will need every tool available including engineering approaches like the synthetic biology used here to maintain safe and productive harvests.”



The experts tested plants modified to have more efficient photorespiration to see if they were better adapted to warmer temperatures.&nbsp;



The team found that the engineered plants produced 26 percent more biomass than the wild-type plants exposed to the same temperatures, and had 15 percent less yield loss under the higher temperatures.



Video Credit: Amanda Nguyen/University of Illinois



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Designing crops that can beat the heat

[sendtonews key="QGPzYnXEtN-1712599-12187" type="single"] Today’s Video of the Day from Carl...

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Today’s Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> explores the ability of salt to transform the way that foods and beverages taste. Salt is known to cover up undesirable flavors, such as bitterness in coffee or beer, but how exactly does sodium chloride change the taste of other compounds?



One previous study showed that, not only does salt suppress bitterness, but also enhances sweetness and sourness. Another study revealed that bitterness reduction by salt seems to be happening at the tongue receptor level as well as in the brain.&nbsp;



While it is known that salt taste is mediated by the presence of sodium channels in the form of taste buds, experts believe that there is also an unknown receptor responsible for how we taste salt that has not yet been identified.&nbsp;



Video Credit: ACS Reactions



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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How does salt makes things taste better?

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Santiago, the capital city of Chile. The city is located in the center of the Santiago Metropolitan Region, which has a population of about eight million people.&nbsp;



'The weather of Santiago resembles the Mediterranean climate with dry and warm summers with temperatures reaching up to 35°C (from October to March) and cool and humid winters that can drop to 0°C (from April to September)."



"The city lies in the centre of the country’s central valley around 80 km from the Pacific Ocean to the west and borders Argentina to the east. A tiny part of Argentina is visible in the top-right corner of the image where the mountain crest of the Andes Mountains acts as a divider between the two countries," says ESA.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Santiago, Chile in South America

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Spiral,Galaxy,,Illustration,Of,Milky,Way

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Astronomers at <a href="https://www.jhu.edu/">Johns Hopkins University</a> have created an interactive map of the universe, including the actual position and real colors of 200,000 galaxies. The map allows the public to access data that was previously only available to scientists.



The map was developed using data collected by the Sloan Digital Sky Survey. For over two decades, a telescope in New Mexico was aimed at slightly different locations to capture the night sky.&nbsp;



"Growing up I was very inspired by astronomy pictures, stars, nebulae and galaxies, and now it's our time to create a new type of picture to inspire people," said map creator Brice Ménard, a professor at Johns Hopkins. "Astrophysicists around the world have been analyzing this data for years, leading to thousands of scientific papers and discoveries. But nobody took the time to create a map that is beautiful, scientifically accurate, and accessible to people who are not scientists. Our goal here is to show everybody what the universe really looks like."



"In this map, we are just a speck at the very bottom, just one pixel. And when I say we, I mean our galaxy, the Milky Way which has billions of stars and planets. We are used to seeing astronomical pictures showing one galaxy here, one galaxy there or perhaps a group of galaxies. But what this map shows is a very, very different scale."



"From this speck at the bottom, we are able to map out galaxies across the entire universe, and that says something about the power of science."



The <a href="https://mapoftheuniverse.net/">interactive map</a> is available online, where it can be downloaded for free.



Video Credit: Johns Hopkins&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Interactive map of the universe includes 200,000 galaxies

[sendtonews key="e4ZG0Jawp3-2374785-12187" type="single"] Astronomers at Johns Hopkins University have created...

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes the first comprehensive estimate of carbon density in the Saharan, Sahel, and Sudanian zones of Africa. In an effort to measure the amount of carbon stored across these drylands, a team of scientists used high-resolution satellite images and artificial intelligence to map nearly 10 billion individual trees. 



"The high spatial resolution (50 cm) combined with AI and field measurements used in this study is key to improving tree inventories in drylands," said Pierre Hiernaux, a French researcher working for NASA. "The ever-increasing availability of very high-resolution satellite imagery will make it possible to assess carbon pools and their dynamics at the individual tree level on a global scale."



"This study is exceptional because it is pioneering a type of approach that will revolutionize the monitoring of trees and forests on a global scale: in the short term, it will be possible to map the world's trees from the centre of the Amazon to our schoolyards," said <a href="https://www.inrae.fr/en">INRAE</a> researcher Jean-Pierre Wigneron.



"Many fields of application will become much more efficient and accurate, such as tracking carbon stocks, biodiversity, monitoring logging and protection against illegal forest degradation, in near real time.”



Video Credit: NASA Goddard&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Remote sensing will revolutionize the way we monitor trees

[sendtonews key="EjmSP20gQK-2593093-12187" type="single"] Today's Video of the Day from NASA...

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Dublin, the capital and largest city of Ireland. Beyond its pub culture, Dublin is known as a modern culinary destination and a UNESCO City of Literature.



"Dublin is located near the midpoint of Ireland’s east coast in the province of Leinster. The city, which covers an area of around 115 square kilometers, is bordered by the Dublin Mountains, a low mountain range to the south, and is surrounded by flat farmland to the north and west," says ESA.



"The city straddles the River Liffey, which rises in the Wicklow Mountains and flows around 80 kilometers eastwards through the city of Dublin, in which it is canalised and bordered with quays. It then empties into Dublin Bay, an arm of the Irish Sea."



Dublin has an abundance of green spaces, including one of the largest enclosed public parks in any European capital city. Phoenix Park, which was originally formed as a royal hunting park in the 1660s, includes 707 hectares of green space.



Video Credit: ESA&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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The city of Dublin on Ireland's east coast

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the province of Zaragoza in northeast Spain. The image was captured by the Copernicus Sentinel-2 mission.



"Together with the provinces of Huesca and Teruel, Zaragoza formed the old kingdom of Aragon. Its capital, also called Zaragoza (not visible in this image) is home to around half of Aragon’s population," says ESA.



"The Ebro River can be seen winding its way through the province from west to east in this image. Between its source in the Cantabrian Mountains in the northwest and its delta on the Mediterranean coast, the Ebro River is fed by more than 200 tributaries as it flows 910 km across much of northern Spain."



Since rainfall is very scarce in this region, irrigation in the Ebro basin is critically important. In the valleys surrounding the Ebro River, many fields are used for growing crops such as corn, wheat, and barley.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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The province of Zaragoza in northeast Spain

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> features a visual dataset of.methane emissions from wetlands across the globe. Atmospheric methane levels have reached record highs in recent years, and wetlands are a major source of these emissions.&nbsp;



"Methane is an important greenhouse gas that contributes substantially to global warming. On a molecule by molecule basis, methane is much more efficient at trapping heat than carbon dioxide, the main driver of warming," says NASA.



"Though human activities, including agriculture, oil and natural gas production and use, and waste disposal, collectively contribute the majority of methane to the atmosphere, about a third of total methane emissions comes from wetlands."&nbsp;



According to NASA, understanding methane emissions from wetlands and other natural sources is critically important for scientists and policymakers who are working to combat climate change by reducing emissions from human activities.



Video Credit: NASA Goddard



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Wetlands are a major source of methane emissions

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> reveals the evolution of the Columbia Glacier in southeastern Alaska. Columbia is among the fastest shrinking glaciers in the world, and the video documents its rapid retreat over the years.&nbsp;



Columbia Glacier is a large, multi-branched calving glacier that flows out of the Chugach Mountains to the Prince William Sound.&nbsp;



According to USGS, Columbia had a long history of stability prior to 1980, with a length 41 miles, and small, short-lived advances or retreats.



In the years since 1980, however, satellite images have captured Columbia’s alarming retreat. By using false-color images, scientists can distinguish between snow and ice, open water, vegetation, and rocky debris on the glacier’s surface.



The series of false-color images featured in today's video were acquired over the span of 35 years. You can see that by 2021, the glacier’s main branch had retreated about 15 miles from its initial position.



The Columbia Glacier has also lost more than 50 percent of its volume, mostly due to calving. <a href="https://www.earth.com/video/nasa-reveals-3d-visual-of-an-atmospheric-river/">NASA</a> reports that while climate change likely started the retreat, mechanical processes kept the disintegration going.



The NASA images are provided by Jesse Allen, Robert Simmon, Joshua Stevens, and Lauren Dauphin using data from Landsat satellites, from the U.S. Geological Survey, and data from MODIS on NASA’s Terra satellite. The structure of Columbia’s moraine played a large role in the stability of the glacier before 1980. 



Like other tidewater glaciers, the Columbia built up a moraine over time, and the mixture of ice and rock functioned like a dam keeping out the sea. It was supported on one end by the shoreline and by the underwater terminal moraine at the other.



Video Credit: NASA Earth Observatory/&nbsp; NASA’s Scientific Visualization Studio



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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The rapid retreat of the Columbia Glacier

[sendtonews key="0879czfG3k-1785905-12187" type="single"] Today’s Video of the Day from NASA...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the Pyrenees Mountains, which form a natural boundary between France and Spain in southwest Europe.



The mountain range is 430 kilometers in length. It stretches from the Mediterranean Sea on the east to the Atlantic Ocean on the west.



At an elevation of 3404 meters, Pico de Aneto is the highest mountain peak in the Pyrenees, and the third-highest peak in Spain. Pico de Aneto is located in the Posets-Maladeta Natural Park, which spans more than 82,000 acres.&nbsp;



"Geological studies have revealed that the Pyrenees Mountains have been around for longer than the Alps, with their sediments first deposited in coastal basins during the Paleozoic and Mesozoic eras," reports ESA.



"The entire mountain range formed due to the upwelling of large sedimentary rocks by the collision of the Iberian and the Eurasian plate around 100 to 150 million years ago, followed by intense erosion from ice and water."



The western Pyrenees receive more precipitation due to moisture blowing in from the Atlantic Ocean. The mountain range contains many lakes, several small glaciers, and some of the highest waterfalls in Europe.



Video &amp; Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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The Pyrenees Mountains in southwest Europe

[sendtonews key="6HyfrAJTBI-1831843-12187" type="single"] Today’s Video of the Day from the...

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Today’s Video of the Day from <a href="https://www.stowers.org/">Stowers Institute for Medical Research</a> describes why experts are studying zebrafish to gain a better understanding of how the immune system responds to injury. Zebrafish have the ability to repair and regenerate organs.



“Organ regeneration offers an exciting opportunity for studying the immune system and to inquire why some species can regenerate organs like the heart or missing limbs while others like humans cannot,” explained Dr. Tatjana Piotrowski.



Zebrafish sensory organ hair cells are an ideal system to investigate the pathways and cell types involved in regeneration since they are easily destroyed with antibiotics and begin regenerating within five hours. This enabled the researchers to identify the exact timing and genetic programs for each anti-inflammatory macrophage activation state.&nbsp;



“Our hypothesis is that human macrophages do not receive the proper chemical activation 'cocktail' to instruct pro-regenerative processes,” said Dr. Nicolas Denans. “Identifying the molecular recipe of macrophage activation in zebrafish may one day enable us to design regenerative immunotherapies in humans.”&nbsp;&nbsp;&nbsp;



“The new evidence is a valuable resource for comparative studies on the genetic programs involved in macrophage-mediated repair and regeneration. In other words, different types of injuries may induce different kinds of inflammatory responses. We want to decipher whether this 'language' is universal or if there are a variety of dialects."



Video Credit: Stowers Institute for Medical Research&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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How the immune system responds to injury

[sendtonews key="0dEcERCq61-2283382-12187" type="single"] Today’s Video of the Day from Stowers...

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes how record-breaking heat expressed itself around the world in 2022.



Scientists have determined that 2022 was the 5th warmest year since 1880. Furthermore, the last nine consecutive years have been the warmest on record.



From devastating floods and wildfires to natural disasters like Hurricane Ian, 2022 showed us yet again how a warming climate affects people across the globe.&nbsp;



"As we look back at 20:22 and years past, we see that each year we better understand the challenges we face and how important it is to meet them," says NASA.



Video/ Image Credit: NASA Goddard



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2022 illustrated the consequences of a warming climate

[sendtonews key="3UUsNkFOuS-2487333-12187" type="single"] Today's Video of the Day from NASA...

Earth,Like,Exoplanet,3d,Render

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes two exoplanets that are orbiting a star 218 light-years away. A team of researchers led by the University of Montreal has found evidence that these planets are "water worlds."



The experts used data from NASA’s Hubble and Spitzer Space Telescopes. They discovered that exoplanets Kepler-138 c and Kepler-138 could be composed largely of water.



"We previously thought that planets that were a bit larger than Earth were big balls of metal and rock, like scaled-up versions of Earth, and that's why we called them super-Earths," explained study co-author Björn Benneke.&nbsp;



"However, we have now shown that these two planets, Kepler-138 c and d, are quite different in nature and that a big fraction of their entire volume is likely composed of water. It is the best evidence yet for water worlds, a type of planet that was theorized by astronomers to exist for a long time."



Video Credit: NASA Goddard



Image Credit: NASA, ESA, and Leah Hustak (STScI)



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Two distant planets may be "water worlds"

[sendtonews key="QIoVYJqRBi-2434608-12187" type="single"] Today's Video of the Day from NASA...

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Satellites reveal how Earth's systems are interconnected Today’s Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes Earth’s interconnected systems, and how this network is affected by rising temperatures.&nbsp;



During 2020, average global temperatures matched the hottest year on record. The hurricane season was also record-breaking, with many of the storms intensifying at extraordinary speeds. Hot water in the ocean is fuel for hurricanes. The satellite data shows that it's all one interconnected system showing how Satellites reveal how Earth's systems are interconnected.



According to NASA, dust swept up from Northern Africa plays a major role in the formation of hurricanes, and is also a key source of fertilization in the Amazon rainforest. As a result of<a href="https://www.earth.com/news/seagrass-wasting-disease-is-fueled-by-climate-change/"> climate</a> change, dust plumes are expected to decline, which will have an effect on vegetation far away.&nbsp;



Images from Earth-observing satellites show how the world’s plant life is affected by natural disasters, fires, and deforestation. Satellites also reveal how widespread changes in vegetation impact waterways,&nbsp; the climate, air quality. Satellites communicate by using radio waves to send signals to the antennas on the Earth. "Earth From Space" is a groundbreaking two-hour special that reveals a spectacular new space-based vision of our planet. 



Video Credit: NASA Goddard&nbsp;



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Satellites reveal how Earth's systems are interconnected

[sendtonews key="JbW4VsY53O-1632195-12187" type="single"] Satellites reveal how Earth's systems are interconnected...

Today’s Video of the Day from the <a href="https://welcome.miami.edu/">University of Miami</a> Rosenstiel School of Marine and Atmospheric Science explores how changes in water temperatures have affected tiger shark habitats and movements in the North Atlantic Ocean. The study reveals that rising temperatures have caused the sharks to shift toward the poles over the past 40 years.



“Tiger shark annual migrations have expanded poleward, paralleling rising water temperatures,” explained study lead author Neil Hammerschlag. “These results have consequences for tiger shark conservation, since shifts in their movements outside of marine protected areas may leave them more vulnerable to commercial fishing.”



The researchers analyzed nine years of tracking data from satellite-tagged tiger sharks, combined with four decades of conventional tag and recapture data provided by National Oceanic and Atmospheric Administration (NOAA) Cooperative Shark Tagging Program.



The experts found that during the last decade of record heat, for every one-degree Celsius increase in water temperatures, tiger sharks migrated further poleward by over 400 kilometers. They also migrated two weeks earlier than usual to waters off the northeastern coast of the United States.



“Given their role as apex predators, these changes to tiger shark movements may alter predator-prey interactions, leading to ecological imbalances, and more frequent encounters with humans,” concluded Professor Hammerschlag.



Video Credit: University of Miami Rosenstiel School of Marine and Atmospheric Science



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Tiger sharks are shifting poleward as temperatures rise

Today’s Video of the Day from the University of Miami...