Corals act more like us humans than one might think. These aquatic structures host an array of marine life while also depending on their microenvironment to survive and grow. Just like humans take multivitamins to stay healthy, corals rely on essential nutrients to thrive.



<h2 class="wp-block-heading" id="h-multivitamins-for-corals">Multivitamins for corals</h2>



Enter the researchers at the Woods Hole Oceanographic Institution (WHOI). They've been busy in the lab, testing an innovative concept: nutrient-infused tiles aimed at supercharging the immune system of corals. It's like a daily multivitamin, but for corals. 



The goal? They aim to prevent coral bleaching, and to help corals to weather the stress of shifting ocean temperatures and to bounce back from harsh climate events such as hurricanes.



"We are studying how corals react when grown on substrates that have been infused with essential metal micronutrients, like manganese, zinc, and iron," explained Colleen Hansel, a senior scientist and marine chemist at <a href="https://www.whoi.edu" target="_blank" rel="noreferrer noopener">WHOI</a>.



There's an urgency to this work, as rapidly warming waters and an active hurricane season make field trials difficult.



However, hope is not lost. Preliminary data harvested from a year’s worth of lab experiments suggests that corals which received a nutrient boost early on were more resilient and resistant to heat stress.



<h2 class="wp-block-heading" id="h-a-reef-brought-to-life">A reef brought to life</h2>



Armed with this data, the team's next plan is to take these nutrient-infused tiles and embed them in an artificial reef. 



Designed by experts at the University of the Virgin Islands (<a href="https://www.uvi.edu/index.html" target="_blank" rel="noreferrer noopener">UVI</a>), this 20 sq. meter (216 sq. ft.) concrete setup will offer a safe home to juvenile corals that need multivitamins.



It also doubles as a settling spot for coral larvae, while the nutrient-rich tiles ensure vitamins are dispersed into the surrounding waters. This not only promotes coral growth, but also prepares them for environmental stressors.



"The artificial reef we're building is going in next to a natural reef that has been severely impacted by marine heat waves and extreme storm events," explained Marilyn Brandt, a coral disease ecologist at the UVI.



This man-made marvel won't just fend off storm surges and erosion, it will also create a habitat for corals struggling to adapt to climate change effects. The ultimate goal of the reef's establishment is to help restore the natural reefs in the area.



<h2 class="wp-block-heading" id="h-monitoring-corals-and-multivitamin-tiles">Monitoring corals and multivitamin tiles</h2>



To ensure the ongoing success of this cutting-edge approach, continuous monitoring and adaptation are integral. Scientists plan to deploy advanced monitoring systems that will track <a href="https://www.earth.com/news/great-barrier-reef-is-on-the-brink-of-extinction/" target="_blank" rel="noreferrer noopener">coral health</a> metrics in real-time. 



This will include assessments of coral growth rates, color changes indicative of stress, and local water conditions. Such data will allow researchers to alter their strategies promptly, adjusting nutrient concentrations or tile placements as necessary to optimize coral resilience.



A dynamic interplay between technology and ecological understanding will ultimately support these living structures in adapting to ever-changing marine environments.



<h2 class="wp-block-heading" id="h-community-engagement-and-education">Community engagement and education</h2>



Beyond laboratory experiments and scientific endeavors, community engagement plays a pivotal role in coral conservation. Educational initiatives aim to involve local communities and <a href="https://www.earth.com/news/60-percent-global-coral-reefs-face-bleaching-rising-temperatures/" target="_blank" rel="noreferrer noopener">raise awareness</a> about the importance of coral ecosystems. 



Workshops, seminars, and hands-on restoration activities promote a sense of stewardship among residents and visitors alike. By incorporating traditional knowledge and local insights, these programs ensure a holistic approach to coral reef preservation.



As communities learn and participate in restoration efforts, they contribute to a sustainable model that may serve as a blueprint for similar conservation projects globally.



<h2 class="wp-block-heading" id="h-balancing-the-ecosystem">Balancing the ecosystem</h2>



Of course, in the grand scheme of the ocean world, balance is key. While the "multivitamin" tiles will help corals, researchers are cautious that they don't end up favoring a specific coral type or promote the intrusion of unwanted species.



As a result, Brandt, Hansel, and their colleagues are keen to examine this while generating a diverse environment beneficial to the reef ecosystem.



"We need to be sure an artificial reef looks and sounds as similar to a natural reef as possible," said Hansel. "That doesn't consist of just coral, but also sponges, anemones, and other biogeochemical components of the reef ecosystem."



Thus, it's evident that these nutrient-infused tiles, created with dedication and an innovative spirit, could provide a vital lifeline for <a href="https://www.earth.com/news/ai-illuminates-fish-interactions-in-coral-reefs/" target="_blank" rel="noreferrer noopener">coral reefs</a> in these changing times.



Could this be the answer to coral resilience? As with much in science, time and rigorous testing will tell. For now, let's look forward to more revealing studies on this exciting development.



-----



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'Multivitamins' could save coral reefs from climate destruction

Corals act more like us humans than one might think. These aquatic structures host an array of marine life while also depending on their microenvironment to survive and grow. Just like humans take multivitamins to stay healthy, corals rely on essential nutrients to thrive. Multivitamins for corals Enter the researchers at the Woods Hole Oceanographic Institution (WHOI). They've been busy in the lab, testing an innovative concept: nutrient-infused tiles aimed at supercharging the immune system of corals. It's like a daily multivitamin, but for corals. The goal?...

NOAA Ocean Explorer: NOAA Ship Okeanos Explorer: Northeast U.S.

. Conservationists Push For Atlantic Ocean National Monument. Undersea ravines deeper than the Grand Canyon, submerged mountains rising thousands of feet from the ocean floor and forests of kelp and coral would become the first marine national monument in the <a href="https://www.bing.com/search?q=atlantic+ocean&amp;cvid=25abadd228e84e4097a74b19f7520bae&amp;FORM=ANAB01&amp;PC=HCTS">Atlantic ocean</a> if conservationists have their way.
The proposal to protect a pristine ecosystem undamaged by heavy fishing and pollution in the Gulf of Maine and canyons and peaks off Cape Cod - where vivid coral has grown to the size of small trees over thousands of years - would mirror the massive conservation efforts that have already taken place in the <a href="http://www.earth.com/news/deep-pacific-little-ice-age/">Pacific Ocean</a>. Conservationists Push For Atlantic Ocean National Monument
"We have an opportunity to permanently protect two of our nation's greatest ocean treasures, right off our coast," said Priscilla Brooks, the Conservation Law Foundation's director of ocean conservation.
Environmental groups want President Barack Obama to permanently protect Cashes Ledge, the underwater mountain and offshore ecosystem in the Gulf of Maine, and the New England Coral Canyons and Seamounts, the chain of undersea formations about 150 miles off the coast of Massachusetts.
But Maine Gov. Paul LePage and others oppose the effort to protect the two sites, together totaling about 6,000 square miles, because of the potential impact on fishermen. Conservationists Push For Atlantic Ocean National Monument
LePage, a Republican, also takes issue with the president's authority under the Antiquities Act to designate monuments, calling it a sweeping power that provides few procedural protections to those who are most likely to be affected.
"These National Marine Monuments serve only one purpose- excluding commercial fishing activity from certain segments of the ocean," he wrote in a letter to Obama last month. He also urged the president to consult with fishermen who make their living in the Gulf of Maine.
Four existing marine monuments - a designation applied only to areas of outstanding scientific, cultural, conservation and aesthetic value - were established by President George W. Bush. <a href="https://www.bing.com/search?q=obama&amp;cvid=98c6f366191e474496e0d4fab128ee05&amp;FORM=ANAB01&amp;PC=HCTS">Obama</a> expanded one, the Pacific Remote Islands Marine National Monument, last year.
The Pacific monuments cover more than 330,000 square miles of ocean, according to the National Oceanic and Atmospheric Administration. The rules for each differ slightly, though typically commercial fishing and resource extraction such as drilling and mining are prohibited, NOAA said.
NOAA plans to hold a town hall meeting in Providence on Tuesday to discuss possible protections for three of the deep-sea canyons and four seamounts, which it says "create unique habitats supporting tremendous biodiversity and fragile ecosystems."
There are two more canyons that are not contiguous to the three mentioned by NOAA. Conservationists and other supporters plan to attend the meeting at the Providence Marriott Downtown to press for all five canyons, the four nearby seamounts and Cashes Ledge to be included, said Roger Fleming, a staff attorney at Earthjustice. The Conservation Law Foundation, National Geographic Society, the Pew Charitable Trusts, Natural Resources Defense Council, and other groups support the proposal.
"These are some of the last places that haven't been spoiled by fishing and human development," said Peter Baker, who directs U.S. Oceans, Northeast for Pew. "We're hopeful this is the right time, for the right places, for the right reasons."
Groups representing the fishing industry have taken issue with the project as a whole, but there appears to be more opposition to protecting Cashes Ledge than the more remote canyons and seamounts.
Robert Vanasse, executive director of the fishing advocacy group Saving Seafood, said the monument proposal overlooks existing protections for Cashes Ledge and would remove local and expert input from the process. Bottom trawling and dredging have been banned there for more than a decade.
"There shouldn't be a couple of people sitting around a table in the West Wing deciding this kind of thing," Vanasse said.
Drew Minkiewicz, an attorney for a scallop industry trade organization, the Fisheries Survival Fund, also said that using an executive action is the "wrong way" to protect these areas because there is already a democratic process in place, and he worries about the precedent it would set.
Federal fishery regulators already voted in June to keep Cashes Ledge mostly closed to fishing. And the New England Fishery Management Council also plans to discuss protecting deep-sea corals from fishing gear at a meeting this month.
But conservationists argue that both sites deserve permanent, comprehensive protections before it's too late, rather than temporary safeguards.
Brooks, of CLF, called such temporary safeguards "tenuous at best."
"There are some places that need to be protected forever," she said.
© 2015 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.

Conservationists Push For Atlantic Ocean National

. Conservationists Push For Atlantic Ocean National Monument. Undersea ravines...

Sierra Nevada Snowpack Lowest In Five Centuries. California's Sierra Nevada snowpack in 2015 was at the lowest level in the past 500 years, according to a new report led by University of Arizona researchers.

The team's research is the first to show how the 2015 snowpack compares with snowpack levels for the previous five centuries. Sierra Nevada Snowpack Lowest In Five Centuries

"Our study really points to the extreme character of the 2014-15 winter. This is not just unprecedented over 80 years — it's unprecedented over 500 years," said Valerie Trouet, an associate professor of dendrochronology at the UA Laboratory of Tree-Ring Research.

"We should be prepared for this type of snow drought to occur much more frequently because of rising temperatures," Trouet said. "Anthropogenic warming is making the drought more severe."

California's current record-setting drought began in 2012, the researchers note in their report.

On April 1 of this year, California Gov. Jerry Brown declared the first-ever mandatory water restrictions throughout the state while standing on dry ground at 6,800-foot elevation in the Sierra Nevada. The historical average snowpack on that site is more than five feet, according to the California Department of Water Resources.

The lack of snow in 2015 stems from extremely low winter precipitation combined with record high temperatures in California in January, February and March, Trouet said. About 80 percent of California's precipitation occurs in the winter months, she said. Snowpack level is generally measured on April 1 each year, a time when the snowpack is at its peak.

"Snow is a natural storage system," Trouet said. "In a summer-dry climate such as California, it's important that you can store water and access it in the summer when there's no precipitation."

In past years, the snows of the Sierra Nevada slowly melted during the warmer months of the year, and the meltwater replenished streams, lakes, groundwater and reservoirs. In a winter with less snow or with winter precipitation coming as rain rather than snow, there is less water to use during California's dry summers.

First author Soumaya Belmecheri said of the extremely low snowpack in 2015, "This has implications not only for urban water use, but also for wildfires."

Belmecheri is a postdoctoral research associate at the Laboratory of Tree-Ring Research.

To determine snowpack levels for the past 500 years, Trouet and her colleagues used previously published tree-ring data that reflects annual winter precipitation in central California from 1405 to 2005 and annual snowpack measurements since the 1930s. The team also used a previously published reconstruction of winter temperatures in southern and central California that spanned the years 1500 to 1980.

Trouet, Belmecheri and their colleagues' report, "Multi-century evaluation of Sierra Nevada snowpack," is scheduled for online publication in Nature Climate Change today.

---

<a href="http://www.arizona.edu" target="_blank" rel="noopener noreferrer">University of Arizona</a>

Sierra Nevada Snowpack Lowest In Five Centuries

Sierra Nevada Snowpack Lowest In Five Centuries. California's Sierra Nevada...

Sierra Nevada Snowpack Lowest In Five Centuries. California's Sierra Nevada snowpack in 2015 was at the lowest level in the past 500 years, according to a new report led by University of <a href="http://www.earth.com/news/arizona-rock-will-help-solve-mysteries-of-the-triassic/">Arizona</a> researchers.

The team's research is the first to show how the 2015 snowpack compares with snowpack levels for the previous five centuries.

"Our study really points to the extreme character of the 2014-15 winter. This is not just unprecedented over 80 years — it's unprecedented over 500 years," said Valerie Trouet, an associate professor of dendrochronology at the UA Laboratory of Tree-Ring Research.

"We should be prepared for this type of snow drought to occur much more frequently because of rising temperatures," Trouet said. "Anthropogenic warming is making the drought more severe." Sierra Nevada Snowpack Lowest In Five Centuries

<a href="https://www.bing.com/search?q=california&amp;cvid=42ddcce1f79a44b18dae1ba270d405cb&amp;FORM=ANAB01&amp;PC=HCTS">California's</a> current record-setting drought began in 2012, the researchers note in their report.

On April 1 of this year, California Gov. Jerry Brown declared the first-ever mandatory water restrictions throughout the state while standing on dry ground at 6,800-foot elevation in the Sierra Nevada. The historical average snowpack on that site is more than five feet, according to the California Department of Water Resources.

The lack of snow in 2015 stems from extremely low winter precipitation combined with record high temperatures in California in January, February and March, Trouet said. About 80 percent of California's precipitation occurs in the winter months, she said. Snowpack level is generally measured on April 1 each year, a time when the snowpack is at its peak.

"Snow is a natural storage system," Trouet said. "In a summer-dry climate such as California, it's important that you can store water and access it in the summer when there's no precipitation."

In past years, the snows of the Sierra Nevada slowly melted during the warmer months of the year, and the meltwater replenished streams, lakes, groundwater and reservoirs. In a winter with less snow or with winter precipitation coming as rain rather than snow, there is less water to use during California's dry summers.

First author Soumaya Belmecheri said of the extremely low snowpack in 2015, "This has implications not only for urban water use, but also for wildfires."

Belmecheri is a postdoctoral research associate at the Laboratory of Tree-Ring Research.

To determine snowpack levels for the past 500 years, Trouet and her colleagues used previously published tree-ring data that reflects annual winter precipitation in central California from 1405 to 2005 and annual snowpack measurements since the 1930s. The team also used a previously published reconstruction of winter temperatures in southern and central California that spanned the years 1500 to 1980.

Trouet, Belmecheri and their colleagues' report, "Multi-century evaluation of Sierra Nevada snowpack," is scheduled for online publication in Nature Climate Change today.

---

<a href="http://www.arizona.edu" target="_blank" rel="noopener">University of Arizona</a>

Dealing With Climate Change Among Communities In Africa. Experts should take note of local knowledge and beliefs when making plans about how to help people in vulnerable regions cope with the impacts of climate change in Africa. This will ensure that such interventions are money well spent, and are not culturally insensitive, advises Conor Murphy of Ireland's Maynooth University. Together with an interdisciplinary research team from universities in Malawi, Zambia and Ireland he interviewed community members in rural Malawi and Zambia to assess how well they are able to adapt to the way they produce food within the context of shifting belief systems and climate change. The findings are published in Springer's journal Climatic Change. Dealing With Climate Change Among Communities In Africa

On a global scale, vulnerability to climate change tends to be greatest in parts of the world where religion is most important in daily life. In a vulnerable area such as sub-Saharan Africa, for instance, Christians have increased 70-fold and Muslims 20-fold over the past century. Traditional beliefs and traditional ecological knowledge (TEK) rooted within an ancestral spirit-world however continue to influence the day-to-day lives especially of rural communities. Religious beliefs are an important element of culture, but are not always static.

Such shifting belief systems influence how people respond and adapt to important issues such as the challenges relating to climate change. The research team interviewed members of two rural communities in Africa: Bolero in Malawi and Monze in Zambia. Christianity and traditional beliefs co-exist within these communities. The researchers assessed how holding multiple belief systems influences the ability of these communities to produce food and adapt to the impact of changing climates.

In Bolero, a smooth co-existence and integration was observed between traditional and Christian beliefs and practices. Faith-based organizations have helped community members to better understand what causes climate variability in their area. Previously, this was associated with punishment from ancestral spirits.

In Monze, by contrast, tensions were experienced when livelihood decisions were made based on the practice of rain rituals. Traditional practices and worshipping of ancestral spirits were seen as evil by Christian religions. Elders blamed recent failures of rainfall on a lack of adherence to traditional beliefs by younger generations. In both communities, elders were concerned that changing beliefs are affecting the way people use traditional ecological knowledge management practices.

"Culture, when approached through the lens of religious beliefs and practices, plays an important role in adaptive capacity, but is not static," reminds Prof. Olusegun Yerokun of Mulungushi University, co-author of the paper. "The manner by which communities holding multiple belief systems are able to adapt is largely determined by the manner in which belief systems co-exist, and how different knowledge forms are valued, accepted and integrated."

"As climate services become the focus of research and government interventions in vulnerable regions, avoiding culturally and economically expensive mal-adaptation will require giving attention to the complexity and dynamism of such changing religious landscapes," Murphy advises.

---

<a href="http://www.springer.com" target="_blank" rel="noopener noreferrer">Springer</a>

Dealing With Climate Change Among Communities In Africa

Dealing With Climate Change Among Communities In Africa. Experts should...

Decision Expected Soon On Endangered Status Of American Eels. Fishermen benefiting from booming prices for American eels are squirming about a decision expected this month on whether to list the fish under the Endangered Species Act.
An environmental advocacy group wants the federal government to list the American eel as threatened, giving the fish protections that would greatly limit fishermen's ability to pursue and catch them.
U.S. Fish and Wildlife Service's decision about protecting the eels will likely come toward the end of September, said Steven Shepard, a spokesman for the agency. Decision Expected Soon On Endangered Status Of American Eels
The decision will come as the market for baby eels, called elvers, is booming. In Maine, which has by far the most lucrative eel fishery in the country, elvers were worth more than $2,100 per pound in 2015 after being worth less than $100 per pound in 2009. The elvers are sold to Asian aquaculture companies that raise them to maturity and use them as food, including sushi.
The Fresno, Calif.-based Center for Environmental Science, Accuracy &amp; Reliability says the eels have lost more than 80 percent of their habitat, largely due to dams that impede <a href="http://www.earth.com/news/human-migrations-to-the-ryukyu-islands-were-led-by-explorers-not-drifters/">migration</a>, and suffer from too much commercial fishing pressure. The group, which was called the Council For Endangered Species Act Reliability at the time of the petition, also states that the eels' population is "declining catastrophically," as are other eel species worldwide.
"In our time this species has been going through a dramatic decline with very little regulatory oversight," said Rob Roy Ramey, a science adviser to the petitioners. "They're slimy, they're odd looking, they're eels. They're not warm and fuzzy and charismatic - this is like the passenger pigeon of our time."
American eels range from Greenland to Venezuela, hatch their young in the Sargasso Sea, and are the subject of commercial fishing in several <a href="https://www.bing.com/search?q=east+coast&amp;cvid=6129c6dbf55d48fda65dc53a5ee0bbba&amp;FORM=ANAB01&amp;PC=HCTS">East Coast</a> states. Their value rarely exceeded $3 million per year from 1950 to 2010 before it ballooned to more than $40 million in 2012, largely buoyed by Maine's elver fishery. Value has waned somewhat in more recent years, in part due to a quota system and other controls, but remains far above historical averages.
Only Maine and South Carolina fishermen harvest elvers, and South Carolina's fishery is much smaller. Several other states have fisheries for older eels, including Maryland, Virginia and Delaware.
Darrell Young, who co-directs the Maine Elver Fishermen's Association and has fished for elvers for more than 20 years, said he is hoping the eels aren't listed under the Endangered Species Act. He said some opponents of fishing assume eels are imperiled because Maine fishermen failed to reach their elver quota in 2015, and he thinks that opinion is misguided.
Fishermen didn't reach their quota this year because the cold weather shortened the spring fishing season, Young said.
"After the season closed this year, there were plenty of eels running up the brooks," Young said. "There's going to be plenty of adult eels running out to the Sargasso Sea."
American eels have become more valuable in recent years largely because of a sharp decline in their population across Europe in the 1990s.
Regulators in Maine are monitoring the federal government's decision about whether to protect eels, but won't have a comment until a decision is made, said Jeff Nichols, a spokesman for the state's Department of Marine Resources.
© 2015 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.

Decision Expected Soon On Endangered Status Of American Eels

Decision Expected Soon On Endangered Status Of American Eels. Fishermen...

Dealing With Climate Change Among Communities In Africa. Experts should take note of local knowledge and beliefs when making plans about how to help people in vulnerable regions cope with the impacts of climate change in Africa. This will ensure that such interventions are money well spent, and are not culturally insensitive, advises Conor Murphy of Ireland's Maynooth University. Together with an interdisciplinary research team from universities in Malawi, Zambia and Ireland he interviewed community members in rural Malawi and <a href="http://www.earth.com/image/fires-in-zambia/">Zambia</a> to assess how well they are able to adapt to the way they produce food within the context of shifting belief systems and climate change. The findings are published in Springer's journal Climatic Change.

On a global scale, vulnerability to climate change tends to be greatest in parts of the world where religion is most important in daily life. In a vulnerable area such as sub-Saharan Africa, for instance, Christians have increased 70-fold and Muslims 20-fold over the past century. Traditional beliefs and traditional ecological knowledge (TEK) rooted within an ancestral spirit-world however continue to influence the day-to-day lives especially of rural communities. Religious beliefs are an important element of culture, but are not always static.

Such shifting belief systems influence how people respond and adapt to important issues such as the challenges relating to climate change. The research team interviewed members of two rural communities in Africa: Bolero in Malawi and Monze in Zambia. Christianity and traditional beliefs co-exist within these communities. The researchers assessed how holding multiple belief systems influences the ability of these communities to produce food and adapt to the impact of changing climates.

In Bolero, a smooth co-existence and integration was observed between traditional and Christian beliefs and practices. Faith-based organizations have helped community members to better understand what causes climate variability in their area. Previously, this was associated with punishment from ancestral spirits.

In Monze, by contrast, tensions were experienced when livelihood decisions were made based on the practice of rain rituals. Traditional practices and worshipping of ancestral spirits were seen as evil by Christian religions. Elders blamed recent failures of rainfall on a lack of adherence to traditional beliefs by younger generations. In both communities, elders were concerned that changing beliefs are affecting the way people use traditional ecological knowledge management practices.

"Culture, when approached through the lens of religious beliefs and practices, plays an important role in adaptive capacity, but is not static," reminds Prof. Olusegun Yerokun of Mulungushi University, co-author of the paper. "The manner by which communities holding multiple belief systems are able to adapt is largely determined by the manner in which belief systems co-exist, and how different knowledge forms are valued, accepted and integrated."

"As climate services become the focus of research and government interventions in vulnerable regions, avoiding culturally and economically expensive mal-adaptation will require giving attention to the complexity and dynamism of such changing religious landscapes," Murphy advises.

---

<a href="http://www.springer.com" target="_blank" rel="noopener noreferrer">Springer</a>

Arctic Sea Ice Levels Shrink To Fourth Lowest Levels. Summer Arctic sea ice shrank to its fourth lowest level on record this month, dispelling faint hopes of a recovery, federal scientists said.
The National Snow and Ice Data Center announced Tuesday that the Arctic hit its summer minimum last week with 1.7 million square miles of sea ice, down 240,000 square miles from 2014. That's a difference the size of<a href="http://www.earth.com/image/tule-fog-across-californias-central-valley/"> California,</a> New York and Maryland combined. Arctic Sea Ice Levels Shrink To Fourth Lowest Levels
"The ice is decreasing over time, which you would expect because the Arctic is warming," data center scientist Julienne Stroeve said.
Summer minimum sea ice has shrunk since satellites started measuring in 1979. It reached a peak of 2.91 million square miles in 1980 and hit an all-time low of 1.3 million square miles in 2012. It went back up to 1.95 in 2013 and hovered near there in 2014.
Variations in weather mean sea ice levels drift a bit year to year, but Stroeve said there's a long term trend that is best seen when looking at averages of five years or more.
The five years between 1979 and 1983 averaged 2.76 million square miles during the summer minimum. The last five years average 1.72 million square miles, a decrease of 38 percent and more than a million square miles.
That means there's no recovery in Arctic sea ice, despite claims of some climate change doubters, said Stroeve and Pennsylvania State University climate scientist Michael Mann, who wasn't part of the government measurement team.
The world overall so far this year is easily the hottest it has been in more than a century of record keeping, according to NASA and the National Oceanic and Atmospheric Administration. However, the El Nino that has been helping push temperatures even warmer isn't having as much an effect up north, which is farther away from the tropical Pacific Ocean, Stroeve said. It has been hot, but not near record breaking in the Arctic this summer.
With human-caused warming continuing, computer simulations show on average that around the year 2040, sea ice will disappear from the Arctic during some summers, Stroeve said.
"We remain on a trajectory that is actually ahead of model predictions," Mann said. "Arctic sea ice is one of several aspects of climate change that his happening even faster than originally predicted."
Sea ice in Antarctica, which had been at record high levels in recent years, are about average, Stroeve said.
---
Online:
National Snow and Ice Data Center: <a href="http://nsidc.org/arcticseaicenews/" target="_blank" rel="noopener noreferrer">http://nsidc.org/arcticseaicenews/</a>
--
Seth Borenstein can be followed at <a href="http://twitter.com/borenbears" target="_blank" rel="noopener noreferrer">http://twitter.com/borenbears</a>
© 2015 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.

Arctic Sea Ice Levels Shrink To Fourth Lowest Levels

Arctic Sea Ice Levels Shrink To Fourth Lowest Levels. Summer...

Yucca Mountain Nuclear Waste Site

Debate Resumes Over Yucca Mountain Nuclear Dump. The debate resumed Tuesday in Nevada about the possibility of radioactive contamination of the underground water supply from a proposed national nuclear waste repository in the desert near where nuclear weapons tests were conducted for decades.
Familiar faces and arguments in the decades-long long battle over the <a href="http://www.earth.com/earthpedia-articles/how-to-get-your-yucca-plant-to-flower/">Yucca</a> Mountain repository turned out for a Nuclear Regulatory Commission meeting in Las Vegas, ahead of another NRC hearing scheduled Thursday in a farm community in the shadow of the site itself.
"The only question to be answered is, `Can waste emplaced in Yucca Mountain be isolated and not contaminate groundwater?'" said Judy Treichel, an opponent since the 1980s of project who heads an entity called the <a href="https://www.bing.com/search?q=nevada&amp;cvid=4c3a30eff47e45b38655e41bf540ea68&amp;FORM=ANAB01&amp;PC=HCTS">Nevada</a> Nuclear Waste Task Force. "The answer is, `No.'"Debate Resumes Over Yucca Mountain Nuclear Dump
Current Las Vegas Mayor Carolyn Goodman recalled her husband, former Mayor Oscar Goodman, threatening a decade ago to lie across a highway to stop trucks hauling radioactive waste through Sin City. She said she hoped not to have to make a similar pledge.
Former U.S. Sen. Richard Bryan, who was governor when Yucca Mountain site studies began in 1982 and now heads the state agency dedicated to stopping the project, spoke against it.
U.S. Rep. Dina Titus, a Nevada Democrat who studied, wrote and taught about nuclear issues as a college professor before she was elected to public office, called the product of "bad politics, not good policy."
But the once-united public front against the repository has eroded in the years since work stopped after Barack Obama was elected president, Harry Reid of Nevada became U.S. Senate Democratic majority leader, and Congress shut off funding.
That led the NRC to halt licensing proceedings and the Energy Department to withdraw all but maintenance staff from the site 90 miles northwest of Las Vegas.
Dan Schinhofen, an elected commissioner in Nye County, where the repository would be built, said it was time to consider economic benefits Nevada could reap in return for entombing more than 77,000 tons of spent nuclear fuel currently piling up at nuclear reactors around the country.
"It's a national security issue. It's in our county. There's support for it. We should talk about it," Schinhofen said.
Reid has called the Yucca Mountain project dead. But a federal appeals court ruled in 2013 that the NRC has to either approve or reject the Energy Department license application. Officials have said a full slate of licensing hearings could take at least three years.
The focus of meetings this week is on an environmental study about the likelihood of radioactivity leaking from the site into groundwater in an ancient aquifer that flows beneath Amargosa Valley farms toward Death Valley National Park.
A report released in August by the NRC acknowledged a small chance of contamination, but said someone drinking two liters of groundwater a day would still not accumulate as much radiation as they do from natural and background sources.
"They say they're just here to talk about groundwater," said Robert Halstead, the Nevada official heading state opposition to the project. "The larger issue is the scope of all of this."
As proposed, tens of thousands of truck and trainloads of waste would be shipped to Nevada to be entombed in casks in tunnels drilled beneath the ancient volcanic ridge.
Nevada state and federal officials have long opposed the nuclear repository, which was first proposed in 1982. The site was approved by Congress in 2002.
However, like Schinhofen, some more recently elected county, state and federal elected representatives, including congressmen Cresent Hardy and Mark Amodei, have indicated a willingness to negotiate for benefits in return for accepting the nation's most dangerous waste.
Opponents contend that technology for entombing nuclear waste is unproven, and the threat of poisoning air, water and soil is too great to allow the repository to be built.
State officials also argue that moving highly radioactive waste from more than 70 sites in 34 states poses a greater risk than leaving the material where it is.
The states of Washington and South Carolina, plus Aiken County, South Carolina, the Prairie Island Indian Community of Minnesota and the National Association of Regulatory Utility Commissioners won the restart of the discussion with their lawsuit saying the federal government was breaking its promise to take their spent nuclear fuel.
© 2015 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.

Debate Resumes Over Yucca Mountain Nuclear Dump

Debate Resumes Over Yucca Mountain Nuclear Dump. The debate resumed...

Republicans Oppose New Offshore Drilling Safety Rules. Republican lawmakers on Tuesday criticized an Obama administration move to toughen standards for offshore drilling, saying the new rules would be costly for drillers and threaten to shut down oil and <a href="http://www.earth.com/news/giant-animals-vanished-from-madagascar-after-humans-arrived/">gas</a> exploration off the nation's coasts.
The Interior Department is preparing to issue standards to close what it says are gaps in blowout preventer rules. A blowout preventer is a piece of equipment designed to shut an out-of-control well. Such a device failed catastrophically when a BP well blew out in 2010, causing a massive oil spill.
But the Republicans blasted the new rules at a field hearing of the U.S. House Committee on Natural Resources in New Orleans. No <a href="https://www.bing.com/search?q=Democratic&amp;cvid=c1fd763dbb454f089dfb4dbfa45dd636&amp;FORM=ANAB01&amp;PC=HCTS">Democratic</a> members showed up.Republicans Oppose New Offshore Drilling Safety Rules
The Republicans complained the rules are too government-driven and costly to industry. The Republicans also questioned whether the new rules would make drilling safer. They also argued that drillers have proven they're safe under current regulations.
Besides aiming to strengthen blowout preventers, the rules require more record keeping by drillers, force companies to do real-time monitoring of drilling operations and take steps to dig safer wells. The rules are expected to be phased in over years.
The new drilling rules - which critics say have been slow to be handed down - grew out of calls for increased safety in offshore drilling following the massive BP spill in 2010. The blowout destroyed the Deepwater Horizon drilling rig, killed 11 workers and sent millions of gallons of crude oil spilling into the Gulf.
The committee's chairman, U.S. Rep. Rob Bishop, R-Utah, said the proposed rules add "complexity without putting proven methods in place that reduce risk."
Unless the rules are changed to meet industry demands, he said they could effectively close down oil and gas exploration and production in the Gulf.
Bishop cited an analysis commissioned by the American Petroleum Institute, an industry group, that found implementing the rules would cost the industry $32 billion over 10 years. By contrast, the Obama administration has calculated the rules will cost the industry about $1 billion to implement.
In a statement, Raul Grijalva, the ranking Democrat on the committee, called the hearing "part of a public relations campaign that isn't dealing with the substance of the issue."
"The Republicans seem to have forgotten about the Deepwater Horizon disaster and the other oil spills we continue to see offshore," Grijalva of Arizona said. "The industry can't regulate itself any longer. That time is past."
Lars Herbst, regional director of the Bureau of Safety and Environmental Enforcement, testified that the new rules are needed to prevent future spills. He pointed out an increasing number of incidents where operators have lost control of wells in the Gulf in the past two years, and said the rate of such incidents now is similar to what was seen before BP's catastrophic spill in 2010.
Herbst also cited a 2013 Gulf blowout in which a rig with 44 workers on it caught fire. The fire lasted for more than 72 hours. All the workers were evacuated.
"Blowouts like these can easily lead to much larger incidents," Herbst testified.
He said regulators were meeting this week with the industry to discuss the regulations in detail before they become final.
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Republicans Oppose New Offshore Drilling Safety Rules

Republicans Oppose New Offshore Drilling Safety Rules. Republican lawmakers on...

Republicans Oppose New Offshore Drilling Safety Rules. Republicans Oppose New Offshore Drilling Safety Rules. Republican lawmakers on Tuesday criticized an <a href="http://www.earth.com/news/coal-plants-closed-trump/">Obama</a> administration move to toughen standards for offshore <a href="http://www.earth.com/news/summer-meltwater-is-drilling-giant-holes-through-greenlands-ice/">drilling</a>, saying the new rules would be costly for drillers and threaten to shut down oil and gas exploration off the nation's coasts.
The Interior Department is preparing to issue standards to close what it says are gaps in blowout preventer rules. A blowout preventer is a piece of equipment designed to shut an out-of-control well. Such a device failed catastrophically when a BP well blew out in 2010, causing a massive oil spill.
But the Republicans blasted the new rules at a field hearing of the U.S. House Committee on Natural Resources in <a href="http://www.earth.com/image/eastern-side-new-orleans/">New Orleans</a>. No Democratic members showed up. Republicans Oppose New Offshore Drilling Safety Rules
The <a href="http://www.earth.com/video/the-republic-of-maldives-in-the-indian-ocean/">Republicans</a> complained the rules are too government-driven and costly to industry. The Republicans also questioned whether the new rules would make drilling safer. They also argued that drillers have proven they're safe under current regulations.
Besides aiming to strengthen blowout preventers, the rules require more record keeping by drillers, force companies to do real-time monitoring of drilling operations and take steps to dig safer wells. The rules are expected to be phased in over years.
The new drilling rules - which critics say have been slow to be handed down - grew out of calls for increased safety in <a href="https://www.bing.com/search?q=offshore&amp;cvid=850784420f5c446bb8beb1af02777d3e&amp;FORM=ANAB01&amp;PC=HCTS">offshore</a> drilling following the massive BP spill in 2010. The blowout destroyed the Deepwater Horizon drilling rig, killed 11 workers and sent millions of gallons of crude <a href="http://www.earth.com/news/fruit-eating-mammals-fertilize-the-soil-in-tropical-forests/">oil</a> spilling into the Gulf.
The committee's chairman, U.S. Rep. Rob Bishop, R-Utah, said the proposed rules add "complexity without putting proven methods in place that reduce risk."
Unless the rules are changed to meet industry demands, he said they could effectively close down oil and gas exploration and production in the Gulf.
Bishop cited an analysis commissioned by the American Petroleum Institute, an industry group, that found implementing the rules would cost the industry $32 billion over 10 years. By contrast, the Obama administration has calculated the rules will cost the industry about $1 billion to implement.
In a statement, Raul Grijalva, the ranking Democrat on the committee, called the hearing "part of a public relations campaign that isn't dealing with the substance of the issue."
"The Republicans seem to have forgotten about the Deepwater Horizon disaster and the other oil spills we continue to see offshore," Grijalva of Arizona said. "The industry can't regulate itself any longer. That time is past."
Lars Herbst, regional director of the Bureau of Safety and Environmental Enforcement, testified that the new rules are needed to prevent future spills. He pointed out an increasing number of incidents where operators have lost control of wells in the Gulf in the past two years, and said the rate of such incidents now is similar to what was seen before BP's catastrophic spill in 2010.
Herbst also cited a 2013 Gulf blowout in which a rig with 44 workers on it caught fire. The fire lasted for more than 72 hours. All the workers were evacuated.
"Blowouts like these can easily lead to much larger incidents," Herbst testified.
He said regulators were meeting this week with the industry to discuss the regulations in detail before they become final.
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Republicans Oppose New Offshore Drilling Safety Rules. Republicans Oppose New...

Debate Resumes Over Yucca Mountain Nuclear Dump. The debate resumed Tuesday in Nevada about the possibility of <a href="https://www.bing.com/search?q=radioactive&amp;cvid=54a1e625c46741eb827cd5c1457dd1c8&amp;FORM=ANAB01&amp;PC=HCTS">radioactive</a> contamination of the underground water supply from a proposed national nuclear waste repository in the desert near where nuclear weapons tests were conducted for decades.
Familiar faces and arguments in the decades-long long battle over the Yucca Mountain repository turned out for a Nuclear Regulatory Commission meeting in <a href="http://www.earth.com/news/sustainable-street-lights-las-vegas/">Las Vegas</a>, ahead of another NRC hearing scheduled Thursday in a farm community in the shadow of the site itself.
"The only question to be answered is, `Can waste emplaced in Yucca Mountain be isolated and not contaminate groundwater?'" said Judy Treichel, an opponent since the 1980s of project who heads an entity called the Nevada Nuclear Waste Task Force. "The answer is, `No.'" Debate Resumes Over Yucca Mountain Nuclear Dump
Current Las Vegas Mayor Carolyn Goodman recalled her husband, former Mayor Oscar Goodman, threatening a decade ago to lie across a highway to stop trucks hauling radioactive waste through Sin City. She said she hoped not to have to make a similar pledge.
Former U.S. Sen. Richard Bryan, who was governor when Yucca Mountain site studies began in 1982 and now heads the state agency dedicated to stopping the project, spoke against it.
U.S. Rep. Dina Titus, a Nevada Democrat who studied, wrote and taught about nuclear issues as a college professor before she was elected to public office, called the product of "bad politics, not good policy."
But the once-united public front against the repository has eroded in the years since work stopped after Barack Obama was elected president, Harry Reid of Nevada became U.S. Senate Democratic majority leader, and Congress shut off funding.
That led the NRC to halt licensing proceedings and the Energy Department to withdraw all but maintenance staff from the site 90 miles northwest of Las Vegas.
Dan Schinhofen, an elected commissioner in Nye County, where the repository would be built, said it was time to consider economic benefits Nevada could reap in return for entombing more than 77,000 tons of spent nuclear fuel currently piling up at nuclear reactors around the country.
"It's a national security issue. It's in our county. There's support for it. We should talk about it," Schinhofen said.
Reid has called the Yucca Mountain project dead. But a federal appeals court ruled in 2013 that the NRC has to either approve or reject the Energy Department license application. Officials have said a full slate of licensing hearings could take at least three years.
The focus of meetings this week is on an environmental study about the likelihood of radioactivity leaking from the site into groundwater in an ancient aquifer that flows beneath Amargosa Valley farms toward Death Valley National Park.
A report released in August by the NRC acknowledged a small chance of contamination, but said someone drinking two liters of groundwater a day would still not accumulate as much radiation as they do from natural and background sources.
"They say they're just here to talk about groundwater," said Robert Halstead, the Nevada official heading state opposition to the project. "The larger issue is the scope of all of this."
As proposed, tens of thousands of truck and trainloads of waste would be shipped to Nevada to be entombed in casks in tunnels drilled beneath the ancient volcanic ridge.
Nevada state and federal officials have long opposed the nuclear repository, which was first proposed in 1982. The site was approved by Congress in 2002.
However, like Schinhofen, some more recently elected county, state and federal elected representatives, including congressmen Cresent Hardy and Mark Amodei, have indicated a willingness to negotiate for benefits in return for accepting the nation's most dangerous waste.
Opponents contend that technology for entombing nuclear waste is unproven, and the threat of poisoning air, water and soil is too great to allow the repository to be built.
State officials also argue that moving highly radioactive waste from more than 70 sites in 34 states poses a greater risk than leaving the material where it is.
The states of Washington and South Carolina, plus Aiken County, South Carolina, the Prairie Island Indian Community of Minnesota and the National Association of Regulatory Utility Commissioners won the restart of the discussion with their lawsuit saying the federal government was breaking its promise to take their spent nuclear fuel.
© 2015 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.

Republicans Oppose New Offshore Drilling Safety Rules. Republican lawmakers on Tuesday criticized an Obama administration move to toughen standards for offshore drilling, saying the new rules would be costly for drillers and threaten to shut down oil and gas exploration off the nation's coasts.
The Interior Department is preparing to issue standards to close what it says are gaps in blowout preventer rules. A blowout preventer is a piece of equipment designed to shut an out-of-control well. Such a device failed catastrophically when a BP well blew out in 2010, causing a massive oil spill.
But the <a href="http://www.earth.com/news/young-republicans-climate-change-2/">Republicans</a> blasted the new rules at a field hearing of the U.S. House Committee on Natural Resources in New Orleans. No Democratic members showed up. Republican lawmakers on Tuesday criticized an Obama administration move to toughen standards for offshore drilling
The Republicans complained the rules are too government-driven and costly to industry. The Republicans also questioned whether the new rules would make drilling safer. They also argued that drillers have proven they're safe under current regulations.
Besides aiming to strengthen blowout preventers, the rules require more record keeping by drillers, force companies to do real-time monitoring of drilling operations and take steps to dig safer wells. The rules are expected to be phased in over years. Republicans Oppose New Offshore Drilling Safety Rules
The new drilling rules - which critics say have been slow to be handed down - grew out of calls for increased safety in offshore drilling following the massive BP spill in 2010. The blowout destroyed the Deepwater Horizon drilling rig, killed 11 workers and sent millions of gallons of crude <a href="https://www.bing.com/search?q=oil&amp;cvid=de8cada1851640f184f7777fd4051706&amp;FORM=ANAB01&amp;PC=HCTS">oil</a> spilling into the Gulf.
The committee's chairman, U.S. Rep. Rob Bishop, R-Utah, said the proposed rules add "complexity without putting proven methods in place that reduce risk."
Unless the rules are changed to meet industry demands, he said they could effectively close down oil and gas exploration and production in the Gulf.
Bishop cited an analysis commissioned by the American Petroleum Institute, an industry group, that found implementing the rules would cost the industry $32 billion over 10 years. By contrast, the Obama administration has calculated the rules will cost the industry about $1 billion to implement.
In a statement, Raul Grijalva, the ranking Democrat on the committee, called the hearing "part of a public relations campaign that isn't dealing with the substance of the issue."
"The Republicans seem to have forgotten about the Deepwater Horizon disaster and the other oil spills we continue to see offshore," Grijalva of Arizona said. "The industry can't regulate itself any longer. That time is past."
Lars Herbst, regional director of the Bureau of Safety and Environmental Enforcement, testified that the new rules are needed to prevent future spills. He pointed out an increasing number of incidents where operators have lost control of wells in the Gulf in the past two years, and said the rate of such incidents now is similar to what was seen before BP's catastrophic spill in 2010.
Herbst also cited a 2013 Gulf blowout in which a rig with 44 workers on it caught fire. The fire lasted for more than 72 hours. All the workers were evacuated.
"Blowouts like these can easily lead to much larger incidents," Herbst testified.
He said regulators were meeting this week with the industry to discuss the regulations in detail before they become final.
© 2015 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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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

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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;



---



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



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.

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



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.

Kainji Lake in north central Nigeria

[sendtonews key="iuA5mpp3jv-1641775-12187" 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.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



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.

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



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.

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



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.

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



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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



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.

The province of Zaragoza in northeast Spain

[sendtonews key="oL4FnPTGCV-2384527-12187" 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.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



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.

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



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.

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



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.

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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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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2022 illustrated the consequences of a warming climate

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

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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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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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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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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.

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...