An alarming new study has revealed that Earth’s major carbon sinks are nearing their limits, signaling that natural processes may soon be unable to compensate for rising greenhouse gas emissions.&nbsp;



According to research published in the journal <a href="http://dx.doi.org/10.34133/ehs.0278" target="_blank" rel="noreferrer noopener">Ecosystem Health and Sustainability</a>, the world’s terrestrial carbon absorption capacity has diminished sharply, challenging the very foundation of current climate mitigation strategies.



The findings center on gross primary productivity (GPP), a vital indicator of how quickly plants can fix carbon dioxide (CO₂) through <a href="https://www.earth.com/news/the-foundation-of-life-is-at-risk-from-climate-change/" target="_blank" rel="noreferrer noopener">photosynthesis</a>. By analyzing multiple datasets spanning 1982 to 2016, scientists discovered a marked decrease in GPP across more than two-thirds of Earth’s land surfaces.&nbsp;



This phenomenon underscores the fragility of the natural systems on which humanity relies to offset global warming.



<h2 class="wp-block-heading" id="h-functioning-of-natural-carbon-sinks">Functioning of natural carbon sinks </h2>



Gross primary productivity reflects the carbon intake capabilities of plants, making it central to the functioning of natural carbon sinks such as forests and soils. These sinks serve as buffers, capturing <a href="https://www.earth.com/news/concrete-becoming-great-carbon-sink-capturing-storing-co2/" target="_blank" rel="noreferrer noopener">significant portions</a> of human-produced CO₂. 



However, if they lose effectiveness, atmospheric carbon levels will inevitably climb faster, intensifying climate change and diminishing plant growth.



Researchers divided their analysis into two periods - 1982–1999 and 2000–2016 - to investigate how GPP has evolved over time.&nbsp;



Although some stabilization was observed in the earlier time frame, the latter period displayed a marked decline in GPP.&nbsp;



Employing advanced statistical techniques, including the optimal-fingerprint approach often used in climate studies, the team identified key drivers behind these shifts.



<h2 class="wp-block-heading" id="h-slowdown-of-the-co₂-fertilization-effect">Slowdown of the CO₂ fertilization effect</h2>



A central finding from the study highlights the decreasing impact of the CO₂ fertilization effect - the phenomenon where higher CO₂ concentrations stimulate <a href="https://www.earth.com/news/predicting-how-climate-change-will-alter-plant-growth-cycles/" target="_blank" rel="noreferrer noopener">plant growth</a>. Once seen as a potential counterbalance to emissions, this effect now appears less potent.



“The decline in the CO₂ fertilization effect is suggested to be the main driver accounting for the slowing-down of global GPP trends,” explained Songhan Wang, a researcher at <a href="https://english.njau.edu.cn/mainm.htm" target="_blank" rel="noreferrer noopener">Nanjing Agricultural University</a> and the study’s lead author.&nbsp;



“Although it still has positive effects, the impact of rising CO₂ on GPP on a global scale fell by about one-half from 2000 onwards compared to its impact in 1982–1999.”



Scientists point to nutrient constraints in soils and leaves as a likely reason for this slowdown. Without sufficient nutrients, plants cannot fully capitalize on the surplus CO₂ in the atmosphere.



<h2 class="wp-block-heading" id="h-diminishing-capacity-of-carbon-sinks">Diminishing capacity of carbon sinks</h2>



This research suggests that natural ecosystems - forests, grasslands, and other vegetation - are approaching a saturation point. Once they reach it, these habitats will no longer be able to compensate for anthropogenic emissions, potentially triggering an acceleration in global warming.



It also raises concerns about the feasibility of existing climate strategies. Many proposals aiming to cap temperature increases at 2℃ (a key goal of the Paris Agreement) heavily rely on terrestrial carbon sinks to balance emission trajectories. If carbon sinks can no longer perform this role effectively, a crucial pillar of climate policy is at risk.



<h2 class="wp-block-heading" id="h-implications-for-future-climate-solutions">Implications for future climate solutions</h2>



The study’s findings intensify calls for swift and comprehensive action to reduce <a href="https://www.earth.com/news/global-carbon-dioxide-emissions-hit-a-record-high-in-2023/" target="_blank" rel="noreferrer noopener">greenhouse gas emissions</a>.&nbsp;



While protecting and restoring ecosystems remains indispensable, a reliance on nature’s carbon-storage capacity alone may be insufficient if that capacity continues to weaken.



To safeguard the planet’s resilience, scientists emphasize the need to shift toward low-carbon technologies, adopt sustainable land management practices, and investigate novel carbon-capture methods.&nbsp;



They also advocate for more robust long-term studies to clarify how local soil properties, water availability, and <a href="https://www.earth.com/news/scientists-climate-change-and-biodiversity-loss-are-one-indivisible-global-health-crisis/" target="_blank" rel="noreferrer noopener">biodiversity</a> influence plant growth rates and carbon absorption capabilities.



<h2 class="wp-block-heading" id="h-a-warning-for-policymakers">A warning for policymakers</h2>



The research underscores a critical turning point in the fight against climate change. With rising global temperatures already causing extreme weather events, melting ice sheets, and other serious impacts, a drop in GPP exacerbates these issues by reducing the natural systems’ ability to counteract emissions.&nbsp;



Governments, industries, and societies must now accelerate their decarbonization efforts to avoid deeper climate disruptions.



This work implies that relying on the world’s forests and soils to mop up our emissions is becoming less reliable. Mitigating climate change by reducing carbon outputs is more essential than ever if we hope to maintain a stable climate and meet the 2℃ target.



<h2 class="wp-block-heading" id="h-irreversible-environmental-damage-nbsp">Irreversible environmental damage&nbsp;</h2>



By revealing that most of Earth’s surface is witnessing a decrease in plant productivity, this study confronts humanity with a stark reality: pushing Earth’s natural systems to their breaking points could lead to irreversible environmental damage.&nbsp;



The dismantling of the CO₂ fertilization effect underscores how intricately balanced and sensitive the global climate truly is.



Ultimately, safeguarding terrestrial carbon sinks demands a multi-pronged strategy - reducing emissions, protecting ecosystems from deforestation and degradation, and improving our scientific understanding of how nature’s complex feedbacks operate in a warming world.&nbsp;



As this newest research shows, halting climate change requires more than hopeful reliance on Earth’s greenery: it necessitates immediate, transformative change at every level of society.



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Earth’s carbon sinks are being pushed to their limits

An alarming new study has revealed that Earth’s major carbon sinks are nearing their limits, signaling that natural processes may soon be unable to compensate for rising greenhouse gas emissions.&nbsp; According to research published in the journal Ecosystem Health and Sustainability, the world’s terrestrial carbon absorption capacity has diminished sharply, challenging the very foundation of current climate mitigation strategies. The findings center on gross primary productivity (GPP), a vital indicator of how quickly plants can fix carbon dioxide (CO₂) through photosynthesis. By analyzing multiple datasets spanning 1982...

<div>Adaptation to climate risks: Political affiliation matters. A new study reveals that those who affiliate with the Democratic Party have different views than those who vote Republican on the following climate risks: the likelihood of floods occurring, adopting protection measures, and expectations of disaster relief from the government. The study was jointly conducted by VU University in <a href="http://www.earth.com/video/earth-space-amsterdam/">Amsterdam</a>, Utrecht University School of Economics in The <a href="https://www.bing.com/search?q=netherlands&amp;form=EDGEAR&amp;qs=PF&amp;cvid=7205a2e0d6b340a2a21adb4dd802cd50&amp;cc=US&amp;setlang=en-US&amp;elv=AY3%21uAY7tbNNZGZ2yiGNjfNhatJdGhLPZsFzwUkaW6Fhj0dto0zm5*YtANFgMvQHScN2kDjckN7P0h7k*xOQw3kfGg2y%21Zv0fxBmUUqF6ItY&amp;plvar=0&amp;PC=HCTS">Netherlands</a>, and the Center for Risk Management and Decision Processes at the Wharton School of the University of Pennsylvania in Philadelphia, USA.</div>
<div>

The study, published today in Springer's journal Climatic Change, focused on the flood risk in New York City. Data was collected through a telephonic survey conducted six months after Superstorm Sandy. It included a random sample of 1,035 homeowners with ground level property in flood-prone areas of New York City. Respondents' political affiliation was determined by what political party they voted for in the November 2012 presidential election. Adaptation to climate risks: Political affiliation matters

Key findings:
<ul>
 	<li>Democrats' perception of their probability of experiencing flood damage is significantly higher than Republicans'. They are also more likely to expect climate change to increase the flood risk they face in the future.</li>
 	<li>Democrats are also more likely to invest in individual flood protection measures.</li>
 	<li>Less than half of Democrats and a third of Republicans trust the government to address the flood risk posed in their area of residence.</li>
 	<li>50% more Democrats than Republicans in the study expect to receive federal disaster relief after a major flood.</li>
 	<li>Interestingly, given the above, the researchers find no difference in flood insurance adoption.</li>
</ul>
"We knew Republicans and Democrats in the United States often perceive the risk of climate change differently. We now know they prepare for climate disasters differently, too. This finding has important implications," report Wouter Botzen and Erwann Michel-Kerjan, who co-led the study.

The authors suggest that flood risk awareness campaigns and policies be aimed at encouraging people to adopt preparedness and risk reduction measures and to purchase adequate insurance coverage, irrespective of their political ideology. The strengthening of building codes in NYC after Superstorm Sandy is a good example of how cities can limit damage from future floods, become more resilient, and limit the need for government disaster relief.

Reference: W. Botzen, E. Michel-Kerjan, H. Kunreuther, H. De Moel and J. Aerts (2016). Political affiliation affects adaptation to climate risks: Evidence from New York City, Climatic Change. DOI 10.1007/s10584-016-1735-9


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Adaptation to climate risks: Political affiliation matters

Adaptation to climate risks: Political affiliation matters. A new study...

<div>A <a href="https://en.wikipedia.org/wiki/NASA">NASA</a> satellite animation of imagery from NOAA's GOES-East satellite shows the movement and landfall of Hurricane Earl near Belize City, Belize. Satellite animation shows landfall of Hurricane Earl in Belize</div>
<div>

NOAA's GOES-East satellite has been providing visible and infrared data on Hurricane Earl since its development as a tropical depression on Aug. 2. At NASA's Goddard Space Flight Center in Greenbelt, Maryland, the NASA/NOAA GOES project combined the data into an animation that showed the movement and strengthening of Earl from Aug. 2 to Aug. 4 through the Caribbean Sea.Satellite animation shows landfall of Hurricane Earl in Belize

At 1 a.m. EDT on Thursday, Aug. 4, 2016 reports from an<a href="http://www.earth.com/news/us-air-force-ignored-climate-change-warnings-at-space-fence-radar-site/"> Air Force</a> Reserve Hurricane Hunter aircraft indicated Earl's maximum sustained winds increased to near 80 mph (130 kph) making it a hurricane. At 2 a.m. EDT Hurricane Earl made landfall 5 miles southwest of Belize City, Belize.

By 11 a.m. EDT on Aug. 4, Earl was inland and already 115 miles (185 km) west of Belize City and had weakened to a tropical storm. The Government of Belize has discontinued all coastal warnings. There are no coastal watches or warnings in effect. Interests along the southern Bay of Campeche should monitor the progress of Earl.

[ooyala code="czZjQ1NTE6j54qQy_y5M0eTKnd3Mrk8u" player_id="ce75157bc770441eaf5e849ae4d1d21f" auto="true" width="896" height="504"]

The center of Tropical Storm Earl was located well inland near 17.2 degrees north latitude and 89.9 degrees west longitude. Earl was moving toward the west near 12 mph (19 kph), and the National Hurricane Center (NHC) said this general motion is expected to continue during the next couple of days. On the forecast track, NHC said Earl will continue to move across northern Guatemala and southeastern Mexico tonight and Friday. The estimated minimum central pressure is 990 millibars.

Maximum sustained winds have decreased to near 50 mph (85 kph) with higher gusts. Additional weakening is expected as the center moves over high terrain, and Earl is forecast to weaken to a tropical depression by tonight.

In the NHC discussion, Forecaster Lixion Avila wrote: "Earl is already well inland over northern Guatemala, and although visible satellite images still show a vigorous circulation, the convection is rapidly decreasing. There are no wind observations near the center, but the best estimate of the initial intensity is 45 knots. Since most of the circulation of Earl is forecast to move over the high terrain of Guatemala and southeastern Mexico, rapid weakening is anticipated. Earl is expected to degenerate into a tropical depression tonight and into a remnant low in a day or so."

For additional updates, visit the NHC website at: <a href="http://www.nhc.noaa.gov/" target="_blank" rel="noopener noreferrer">http://www.nhc.noaa.gov</a>.


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Satellite animation shows landfall of Hurricane Earl in Belize

A NASA satellite animation of imagery from NOAA's GOES-East satellite...

<div class="img-wrapper">Melting Greenland ice sheet could release frozen Cold War-era waste. Camp Century, a U.S. military base built within the Greenland Ice Sheet in 1959, doubled as a top-secret site for testing the feasibility of deploying nuclear missiles from the Arctic during the Cold War. When the camp was decommissioned in 1967, its infrastructure and waste were abandoned under the assumption they would be entombed forever by perpetual snowfall.</div>
But climate change has warmed the Arctic more than any other region on Earth, and a new study finds the portion of the ice sheet covering Camp Century could start to melt by the end of the century. If the ice melts, the camp's infrastructure, as well as any remaining biological, chemical and radioactive waste, could re-enter the environment and potentially disrupt nearby ecosystems, according to the study's authors. Melting Greenland ice sheet could release frozen Cold War-era waste

Determining who is responsible for cleaning up the waste could also lead to political disputes not considered before, according to the study's authors.

"Two generations ago, people were interring waste in different areas of the world, and now climate change is modifying those sites," said William Colgan, a climate and glacier scientist at York University in Toronto, Canada, and lead author of the new study. "It's a new breed of political challenge we have to think about."

The new study was published today in Geophysical Research Letters, a journal of the American Geophysical Union.

The assumption that any waste could be buried forever under ice is unrealistic, according to James White, a climate scientist at the University of Colorado in Boulder, who was not connected to the study.

"The question is whether it's going to come out in hundreds of years, in thousands of years, or in tens of thousands of years," White said. "This stuff was going to come out anyway, but what climate change did was press the gas pedal to the floor and say, 'it's going to come out a lot faster than you thought.'"

During the <a href="http://www.earth.com/news/cold-war-spy-images-himalayan-melt/">Cold War</a>, U.S. military attention shifted to the Arctic -- the shortest route between the U.S. and the former Soviet Union. In April 1951, the U.S. and Denmark agreed to defend Greenland, a Danish territory, from Soviet attack, and the U.S. built several air bases in Greenland that year.

In 1959, the <a href="https://en.wikipedia.org/wiki/NASA">U.S</a>. Army Corps of Engineers built Camp Century 200 kilometers (125 miles) inland from the Greenland coast. Encased completely within the ice sheet, Camp Century became known as the "city under the ice."

The camp's official purpose was to test construction techniques in the Arctic and conduct scientific research. While in operation, the camp housed 85 to 200 soldiers and was powered by a nuclear reactor. Scientists at Camp Century took ice core samples providing climate data still cited in research today, Colgan said.

The camp also provided proof of concept for a top secret program to test the feasibility of building nuclear missile launch sites close enough to reach the Soviet Union. While never built, a larger planned camp based on the concept of Camp Century would have housed a 4,000-kilometer (2,500-mile) long tunnel system underneath the ice, capable of deploying up to 600 nuclear missiles.

Although the camp was built with Denmark's approval, the missile launch program, known as Project Iceworm, was kept secret from the Danish government. Several years after the camp became operational, Project Iceworm was rejected by the Joint Chiefs of Staff and the camp was decommissioned. The Army Corps of Engineers removed the nuclear reaction chamber but left the camp's infrastructure and all other waste behind, assuming the ice sheet would secure them forever. In the decades since, falling snow has buried the camp roughly 35 meters (115 feet) further underneath the ice.

In the new study, Colgan and his team took an inventory of the wastes at Camp Century and ran climate model simulations to determine whether the waste will stay put in a warming Arctic. The team analyzed historical U.S. army engineering documents to determine where and how deep the wastes were buried and how much the ice cap had moved since the 1950s.

"Looking at the data, we can see right where it's buried," says Mike MacFerrin, a CIRES researcher who is co-author on the paper. MacFerrin analyzed ground-penetrating radar from NASA's Operation IceBridge aircraft to pinpoint the camp's current location and depth. "The radar shows smooth layers of snow and ice until reaching the camp. Then the signal gets messy. We don't yet have enough detail to map exactly what all is down there, but the outline is clear."

The team found the waste at Camp Century covers 55 hectares (136 acres), roughly the size of 100 football fields. They estimate the site contains 200,000 liters (53,000 gallons) of diesel fuel, enough for a car to circle the globe 80 times. Based on building materials used in the Arctic at the time, the authors speculate the site contains polychlorinated biphenyls (PCBs), pollutants toxic to human health. They also estimate the site has 240,000 liters (63,000 gallons) of waste water, including sewage, along with an unknown amount of radioactive coolant from the nuclear generator.

Looking at existing business-as-usual climate projections, the team determined the wastes would not remain encased in ice forever, as was assumed by both the U.S. and Denmark when the camp was abandoned. Instead, they could melt and re-enter the environment.

"When we looked at the climate simulations, they suggested that rather than perpetual snowfall, it seems that as early as 2090, the site could transition from net snowfall to net melt," Colgan said. "Once the site transitions from net snowfall to net melt, it's only a matter of time before the wastes melt out; it becomes irreversible."

Camp Century's waste presents a significant environmental hazard, according to the study's authors. When the ice melts, pollutants could be transported to the ocean, where they could disrupt marine ecosystems, Colgan said.

Based on ice sheet observations near Camp Century but at lower elevations, the camp's waste could be exposed sooner than the study's models predict, said Jennifer Mercer, a cryospheric scientist with the National Science Foundation who specializes in operations on the Greenland Ice Sheet and who was not connected to the study.

The study does not advocate for starting remediation activities at Camp Century now. The waste is buried tens of meters below the ice, and any cleanup activities would be costly and technically challenging, Colgan said.

"It really becomes a situation of waiting until the ice sheet has melted down to almost expose the wastes that anyone should advocate for site remediation," he said.

But the new study does raise questions about who is responsible for cleaning up the waste when it is exposed. International law is clear about responsibility for preventing future hazardous waste, but ambiguous about who is liable for waste already discarded, said Jessica Green, a political scientist specializing in international environmental law at New York University who was not connected to the study. Although Camp Century was a U.S. base, it is on Danish soil, and although Greenland is a Danish territory, it is now self-governing, she said.

The implications of climate change on politically ambiguous abandoned wastes have not been considered before, according to the study's authors.

"The study identifies a big hole in the extant set of laws and rules we have to deal with environmental problems globally," Green said.

Melting Greenland ice sheet could release frozen Cold War-era waste

Melting Greenland ice sheet could release frozen Cold War-era waste....

<div>Because the oceans absorb man-made carbon dioxide (CO2) from the atmosphere, its pH declines. Effects of this chemical change on tropical coral reefs can be examined in laboratory or short-term field experiments. However, a team led by Dr. Marlene Wall, marine biologist at GEOMAR Helmholtz Centre for Ocean Research Kiel, chose a different approach: In the framework of the German research network BIOACID (Biological Impacts of Ocean Acidification), they examined corals of the genus Porites, which grow at volcanic carbon dioxide vents in Papua New Guinea and have become a dominant species there.</div>
<div>

"It is very difficult to foresee if tropical corals are able to survive global climate change. These organisms are very sensitive to a rise in water temperatures, ocean acidification and pollution", explains Dr. Wall. "The natural carbon dioxide vents give us the opportunity to study the scenario of the future already today. Previous studies have shown that Porites is among the winners. But up to now, no one knew how they manage."

Porites corals keep their internal pH at a level at which they are able to produce calcium carbonate and grow despite higher carbon dioxide concentrations and lower pH in the surrounding water - a significant advantage over many other species. In this way, they have established themselves under extreme conditions. "According to our observations, the pH regulation is a key feature when it comes to surviving under a lowered pH", emphasizes Dr. Wall. The findings about pH regulation in corals are published in the journal Scientific Reports.

To better understand the ability of pH regulation, the scientific team led by Dr. Wall examined corals using the boron isotope method. For these measurements, a laser is directed at the skeletons. Material that comes off during this procedure is analysed in a mass spectrometer. The isotopic composition of boron that is included in the skeleton reveals information on the coral's internal pH. "This method gives us new insights and allows for conclusions about the physiology of the coral skeleton at the time of calcification", says Dr. Jan Fietzke, a physicist at GEOMAR and co-author of the study. "You could say we look back into the future."

For the study described in the current publication, Fietzke examined the skeleton which had been formed a few days to weeks before sampling. Comparisons with pH measurements in the surrounding water proved that the boron isotopes reflected the internal pH of the coral and that it was different from the pH of the environment - pH regulation has taken place. Based on this knowledge, cores from several decades old corals are currently being evaluated. "So we can find out when and how quickly they have acclimatized."

By looking back to the future, the researchers found out that Porites corals have a remarkable ability to level their pH for decades and thereby counteract global climate change. "But we had to learn that regulation is only possible up to a certain degree. When carbon dioxide concentrations exceed values that are expected after the year 2100, calcification and growth are lower - and even the winner reaches its limit", according to Dr. Wall. "Our results prove how important it is to combine laboratory experiments with long-term field studies and observations. Controlled laboratory experiments provide an understanding of the pH control, but only in combination with field observations, they paint a more detailed picture about possible long-term consequences."
###
Original publication:

Wall, Marlene, Fietzke, J., Schmidt, G. M., Fink, A. Hofmann, L. C., de Beer, D., Fabricius, K. E. 2016: Internal pH regulation Facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions. Scientific Reports 6: 30688, doi: 10.1038 / srep30688

BIOACID in brief:

Under the umbrella of BIOACID (Biological Impacts of Ocean Acidification), 10 institutions examine how marine ecosystems react to ocean acidification, how this affects the food web and the exchange of material and energy in the ocean and how the changes influence the socio-economic sector. The project is funded by the Federal Ministry of Education and Research (BMBF) and coordinated by GEOMAR Helmholtz Centre for Ocean Research Kiel. A list of member institutions and further information can be found on the website <a href="http://www.bioacid.de/" target="_blank" rel="noopener">http://www.bioacid.de</a>

Links:

<a href="http://www.geomar.de/" target="_blank" rel="noopener">http://www.geomar.de</a> GEOMAR Helmholtz Centre for Ocean Research Kiel

<a href="http://www.bioacid.de/" target="_blank" rel="noopener">http://www.bioacid.de</a> BIOACID - Biological Impacts of Ocean Acidification

<a href="http://www.fwf.ac.at/" target="_blank" rel="noopener">http://www.fwf.ac.at</a> Fund for Scientific Research (FWF)

</div>

Can coral reefs resist a declining pH in a warming world?

Because the oceans absorb man-made carbon dioxide (CO2) from the...

Anthony DeLuze keeps his ancestors' traditions alive in 21st century Hawaii by growing the staple crop taro on a suburban plot sandwiched between wings of a sprawling shopping mall.Underground <a href="http://www.earth.com/news/navy-pink-turquoise-relaxation/">Navy</a> fuel tanks worry Hawaiian farmers causing a scene.
But the aquifer that hydrates the starchy vegetables sits under 20 enormous underground fuel tanks the Navy uses to store fuel for military ships and aircraft. One tank leaked tens of thousands of gallons of jet fuel into the ground in 2014, worrying DeLuze the tanks are a threat to his farm's natural springs and well.
The aquifer also supplies a quarter of the water consumed in urban Honolulu, which includes the tourist mecca Waikiki.Underground Navy fuel tanks worry Hawaiian farmers
DeLuze and Honolulu water utility officials want the Navy to move the World War II-era tanks away from the aquifer. But the Navy views them as a vital strategic asset that would be difficult to replicate elsewhere.
Plus, the Navy says the water is safe.
"It makes no sense to me that one of the biggest aquifers on this island has fuel sitting on top of it," DeLuze said. "Anything can happen - could have an earthquake, could be a disaster, and we're screwed."
Each of the underground fuel tanks is about 25 stories tall. The tanks sit in two rows of 10 inside a hill about 3 miles from Pearl Harbor. They hold a total of about 187 million gallons of fuel, providing the military with a vital fuel reserve in the Pacific. Two are currently out of service.
Navy Region Hawaii commander Rear Adm. John Fuller said the tanks are the last fully U.S.-owned fuel stop for forces en route from the West Coast and Hawaii to Asia and the Middle East.
"If we don't have the fuel to operate the forces, then we can't be present. We can't help our friends," Fuller said.
The Navy is working on a 20-year plan, codified in a signed agreement with the U.S. Environmental Protection Agency and the state Health Department, to upgrade the 70-year-old tanks and better prevent and detect leaks.
As part of the deal, the Navy is building four new wells to monitor groundwater for contaminants by the end of the year. This will add to the 10 monitoring wells it already has. The Navy conducts quarterly and monthly testing at these wells, said Capt. Dean Tufts, commanding officer of Naval Facilities and Engineering Command, Hawaii.
"Fuel is not moving toward drinking water sources. And fuel is not in the aquifer at all," Tufts told The Associated Press in an interview.
Officials with the Honolulu Board of Water Supply, the city's water utility, say its water is safe to drink. But they point to Navy studies from the '80s through the late '90s showing petroleum hydrocarbon in the rocks underneath the tanks as a sign of the tanks' risks. They're worried about the possibility of an extremely large release of fuel due to a catastrophic event, in part because the tanks are so old.
As an island state, Hawaii can't import water from a neighbor if the fuel enters the water supply, said Ernest Lau, the utility's manager and chief engineer.
"We live on an island. Every drop of pure fresh water is precious to us," Lau said. He argues a better place for the tanks is about 20 miles west at Campbell Industrial Park, where a hard rock covering insulates the aquifer below.
Honolulu could install a treatment system to remove fuel contaminants, but that would be expensive, and ratepayers would have to foot the bill unless the utility could force the federal government to pay for it, Lau said.
The utility hasn't said how much it would cost to build a treatment system. But a 2010 Navy study estimated the price for installing one for the Navy's Red Hill shaft near the tanks would be between $46 million and $51 million. The study estimated the facility would cost $6 million to $7 million a year to operate.
Part of the difficulty is the uncertainty over where the leaked petroleum is heading and where future leaks might go.
Steve Linder, manager of the underground storage tanks program at the<a href="https://en.wikipedia.org/wiki/NASA"> EPA</a> region that includes Hawaii, said data doesn't indicate alarming signs of fuel in the groundwater or show an imminent threat to drinking water supply wells.
But he said more research would provide certainty and comfort.
"That's what we're looking for - getting a higher degree of understanding, a higher degree of certainty so we can make more informed decisions about what needs to happen in terms of release prevention in the future and what needs to happen in terms of mitigation of a problem that may already exist," Linder said.
© 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.

Underground Navy fuel tanks worry Hawaiian farmers

Anthony DeLuze keeps his ancestors' traditions alive in 21st century...

<div>
<div class="img-wrapper">Tropical Storm Omais seen in infrared light. Infrared data from NASA's Aqua satellite showed powerful thunderstorms in Tropical Storm Omais are wrapping around the center as it continues to consolidate.</div>
The Moderate Resolution Imaging Spectroradiometer, or MODIS, instrument that flies aboard NASA's Aqua satellite captured infrared temperature data of the newly developed tropical storm on Aug. 4, 2016, at 8:10 a.m. EDT (12:10 p.m. UTC). The MODIS data showed cloud top temperatures as cold as minus 80 F (minus 62.2 C) in strong thunderstorms wrapped around the center of circulation. The largest area of thunderstorms stretches from the eastern to the southern quadrants of the storm. Temperatures that cold indicate strong uplift in the storm and cloud tops high into the troposphere. <a href="https://www.bing.com/search?q=nasa&amp;cvid=0f07c3808ecb4bc9b024c826121e77c8&amp;FORM=ANAB01&amp;PC=HCTS">NASA</a> research has shown that <a href="http://www.earth.com/image/thunderstorms-and-dust-invade-the-bahamas/">storms</a> with cloud tops that cold have the ability to generate heavy rain.

At 11 a.m. EDT (3 p.m. UTC) on Aug. 5, Tropical Storm Omais' maximum sustained winds increased to near 57 mph (50 knots/92 kph). The storm developed quickly from a low pressure area into a tropical storm. Omais was centered near 22.8 degrees north latitude and 147.5 degrees east longitude, about 367 nautical miles east-southeast of Iwo To island, Japan. Omais has tracked north-northeastward at 14.9 mph (13 knots/24.05.5 kph) and is expected to continue in a northerly direction. Tropical Storm Omais seen in infrared light

Omais is exptected to move on a northerly track and strengthen to a typhoon by Aug. 6 after passing far to the east of the island of Iwo To, Japan. It is then expected to continue tracking in a northerly direction through the northwestern Pacific Ocean.


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Tropical Storm Omais seen in infrared light

Tropical Storm Omais seen in infrared light. Infrared data from...

Environmentalists sued state agencies Wednesday to halt oil well injections into a federally protected aquifer near California's Central Coast.Environmentalists sue California over oil well injections and cause a scene.
<a href="https://www.bing.com/search?q=california&amp;form=EDGEAR&amp;qs=PF&amp;cvid=2e2c7b8e2f0d4c3f8131f4797b5c15ab&amp;cc=US&amp;setlang=en-US&amp;plvar=0&amp;PC=HCTS">California</a> oil and gas regulators failed to assess environmental consequences before forwarding a so-called aquifer exemption to federal officials for final approval, the Center for Biological Diversity said in the lawsuit filed in San Luis Obispo Superior Court.
The Department of Conservation's Division of Oil, Gas and Geothermal Resources in February signed off on granting the exemption to Freeport-McMoRan Oil &amp;Gas that would allow the oil company to inject steam and oil production wastewater into an aquifer beneath rolling hills that are also home to vineyards and homes a few miles outside <a href="http://www.earth.com/news/environmentalists-sue-california-over-oil-well-injections/">Pismo Beach</a>.
The exemption is the first the state has supported since regulators acknowledged lax oversight had allowed thousands of wells to pump oilfield fluids into protected aquifers. The wells inject steam and acid to loosen oil deposits or dispose of massive amounts of briny fluid and other waste, including chemicals, that comes out of oil production wells.
Attorney Maya Golden-Krasner, who filed the suit, disputes the state's finding that the injections wouldn't pollute drinking water and wants a thorough assessment conducted of potential environmental impact. About 100 wells within a mile of the oil field provide irrigation and drinking water and many residents are concerned about chemicals getting into their water.
"We're concerned if this flies through, the state is going to end up sacrificing dozens of aquifers and the state's groundwater without analyzing the consequences," Golden-Krasner said.
The state and U.S. Environmental Protection Agency have come under fire from environmental groups and internally for failing to protect underground drinking water from oilfield contamination. The state has said it is committed to either shutting down the wells or approving exemptions for them.
Department of Conservation spokesman Donald Drysdale would not comment on pending litigation, but said the state is expediting efforts to get in compliance with the federal Safe Drinking Water Act.
Under the water-protection act, exemptions can only be granted if an aquifer is not used for drinking water or could not be used in the future.
In approving the exemption, the state said the aquifer beneath the oil field is not a current or future water source because it produces hydrocarbons. Further, it said fluids injected were not likely to migrate beyond the aquifer.
Golden-Krasner said the analysis was inadequate and that regulators had essentially rubber-stamped what oil company experts found. She said she is concerned because the approval didn't examine the impact on the aquifer from more than 300 new wells the company plans to drill to increase production.
An oil company representative said the suit appeared to lack any legal or factual foundation and represented a misunderstanding of the California Environmental Quality Act, which it said does not apply to interagency submissions such as the exemption petition.
"The Center for Biological Diversity has a well-established pattern and practice of filing meritless lawsuits simply to harass project proponents and to advance their openly stated goal of ending all oil production in the state of California," spokesman Eric Kinneberg said in a statement. "Today's petition appears to be nothing more than a continuation of this strategy."
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This story has been corrected to show the name of the company is Freeport-McMoRan Oil &amp;Gas, not Freeport-McMoRan Inc.
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Environmentalists sue California over oil well injections

Environmentalists sued state agencies Wednesday to halt oil well injections...

<div>
<div class="img-wrapper">On Aug. 4 at 3:20 p.m. EDT (1920 UTC), the Moderate Resolution Imaging Spectroradiometer aboard <a href="https://en.wikipedia.org/wiki/NASA">NASA's</a> Terra satellite captured a visible image of Tropical Storm Ivette. The image showed strong storms surrounded the low-level center of circulation and a thick band of powerful thunderstorms extended south of the center, while a <a href="http://www.earth.com/news/birds-fragmented-forests-costa-rica/">fragmented</a> band was north of the center. Also Tropical Storm Ivette holding steady has shown.</div>
At 5 a.m. EDT (0900 UTC) on Aug. 5 the center of Tropical Storm Ivette was located near 14.5 north latitude and 129.7 west longitude. Ivette is moving toward the west near 14 mph (22 kph). The National Hurricane Center (NHC) predicts a turn toward the west-northwest at a slightly slower forward speed by Saturday. Maximum sustained winds are near 50 mph (85 kph) with higher gusts. Some slight strengthening is possible during the next day or so.Tropical Storm Ivette holding steady

The low-level center remains exposed to the west and northwest of a loosely curved band of thunderstorms, due to westerly to northwesterly shear.

NHC forecaster Daniel Brown noted, "Although the [vertical wind] shear is not very strong, it appears the small size of the cyclone and perhaps some nearby dry mid-level air in combination with the shear have prevented intensification during the past day."

In two days, cooler waters and increased wind shear are expected to weaken Ivette. NHC forecasts Ivette to become a remnant low pressure area in four or five days.

For updates on Ivette, visit the NHC website at: <a href="http://www.nhc.noaa.gov/" target="_blank" rel="noopener noreferrer">http://www.nhc.noaa.gov</a>.


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Tropical Storm Ivette holding steady

On Aug. 4 at 3:20 p.m. EDT (1920 UTC), the...

New Zealand farming company to stop using palm oil <a href="http://www.earth.com/video/new-zealand-from-space/">New Zealand's</a> state-owned farming company said Monday it will stop using palm kernel products to feed its animals as it seeks to take better care of the environment.

Landcorp announced it will stop using the palm oil products by the middle of next year. Environmentalists have linked growth in the palm oil industry to rainforest destruction in Indonesia, which in turn is contributing to the decline in species like the Sumatran tiger.

Landcorp Chief Executive Steven Carden told The Associated Press that consumers worldwide are willing to pay a premium for natural products, including grass-fed meat and dairy.

"We are really concerned with producing food in a responsible and environmentally friendly way," Carden said.

He said making the change also made sense from a strategic and commercial viewpoint.

Farmers typically use imported palm kernel cake, also known as expeller, as part of a diet for dairy cows, especially during the winter or when natural feed is low.

The cake is a byproduct of palm oil production. Palm oil is a common ingredient in many household products, from margarine to lipstick.

Carden said the company will replace palm products with locally grown alternatives like maize silage and chicory.

Landcorp is one of the largest farming companies in New Zealand, with 140 farms and 850,000 animals. It uses about 15,000 metric tons of palm cake each year.

But thousands of dairy farmers who provide milk to the country's biggest company Fonterra will continue to use the product, after Fonterra said Monday it had no immediate plans to stop using it.

In a statement, Fonterra said it issued guidelines last year to farmers advising them to limit their use of palm products, but that it believes they still play a role in supporting animal health, particularly when grass quality declines or during a drought. <a href="https://en.wikipedia.org/wiki/NASA">NASA</a>

Fonterra said the palm products its farmers use are responsibly sourced from a provider with a "no-deforestation, no-exploitation" policy.

Environmental advocacy group Greenpeace said Monday it welcomed Landcorp's move and hopes that Fonterra will soon follow suit.

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New Zealand farming company to stop using palm oil

New Zealand farming company to stop using palm oil New...

<div>Overfishing is threatening the marine environment in the Caribbean. Marine fisheries catches have been drastically under-reported in the Turks and Caicos Islands in the Caribbean, with overfishing threatening the marine environment and livelihoods of the local community, reveals a recent study published in the open-access journal <a href="http://journal.frontiersin.org/article/10.3389/fmars.2016.00071/full" target="_blank" rel="noopener noreferrer">Frontiers in Marine Science</a>.</div>
<div>

Actual catches on the islands were an alarming 2.8 times, or 86% higher than that reported to the FAO, and this has very troubling implications.Overfishing is threatening the marine environment in the Caribbean

Lead researcher Aylin Ulman, recently based at the Sea Around Us, and her team call for urgent action from policy-makers to ensure the future sustainability of the fishing industry in this archipelago nation.

Fishing has historically been the main industry in the Turks and Caicos Islands and in some areas up to 75% of locals are involved in the fishing industry. The rise in tourism is creating more demand for locally caught seafood and is placing increasing pressure on local marine life.

The islands operate small-scale fisheries for queen conch, <a href="http://www.earth.com/news/economic-coral-bleaching-caribbean/">Caribbean</a> spiny lobster, and finfish as the three main targets. The local government is required to report all catches to the Food and Agricultural Organization (FAO) to be able to trade with signatory nations of CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora). The international trade of wild animals must be shown to not threaten the survival of local stocks.

However, the data that are passed on to the <a href="https://en.wikipedia.org/wiki/NASA">FAO</a> are incorrect because they only account for commercial catches that will be exported, and do not include seafood caught and consumed by locals and tourists on the islands. This can put future stocks at risk.

"DEMA (The Department of Environment and Maritime Affairs) has done a great job of monitoring fish sold to the country's fish plants," said Ulman; "However, it seems they have not always had enough staff to monitor seafood being sold or given to locals and tourists, whether that be at the dock, in shops, or in restaurants."

For a better estimate of the amount of seafood caught around the islands, the authors assessed all catches between 1950 and 2012. More accurate records of catches for export, artisanal, and subsistence fisheries were identified from Turks and Caicos Islands Government reports. A recent and thorough seafood consumption survey from 2013 involving locals and tourists was additionally used to estimate the previously unreported local consumption of seafood.

The reconstructed data also included evaluations of recreational catches and illegal poaching. Using these data and mathematical models, Ulman and her team have made the most accurate estimates to-date of seafood consumption by residents and tourists on the islands.

Reported catches have been used to put regulations in place for sustainable catch limits. However, these limits have been unsustainable, leading to the over-exploitation of marine life.

In fact, local consumption of conch is close to the total number allowed to be caught under these 'sustainable' limits, and this is without taking into account the number of conch that are exported, which is almost equal to local consumption. As a result of this study, the authors hope that future catch limits will be based on total seafood catches from all fishery sectors.

"Local seafood consumption surveys should continue to be completed once every three to five years to track changing patterns, especially with the ongoing growth of tourism. Local consumption catches must be factored into the equation when calculating the total allowable catch limits, especially for key species of conch and lobster, to determine if it is even possible to continue the export business," said Ulman.

New legislation is needed to reduce seafood catches so that stocks are being fished within safe limits, and this study adds new weight to the urgency of this issue. The Turks and Caicos Islands Government have recommended a stop to the export of conch for up to five years to allow populations to recover, but they have been delayed in implementing this.

"While the results of this research may seem like bad news, we are quick to emphasize that this new data may actually present an opportunity," said co-author Edward Hind; "The staff at DEMA now have the knowledge to set catch limits that really will work. If the government supports the Turks and Caicos Islands fisheries scientists in collecting better catch data, then the country can have healthy fisheries for decades to come".

The under-reporting of fisheries catches is common in other regions and neighboring island nations. Haiti, the Dominican Republic, and Jamaica are facing the same the problems and urgent action is required to avoid further over-exploitation of marine life.


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Overfishing is threatening the marine environment in the Caribbean

Overfishing is threatening the marine environment in the Caribbean. Marine...

Early exposure to pollutants may predispose for diabetes. AMHERST, Mass. - Some studies indicate that early life exposure to pollutants such as PCBs and phthalates can predispose people to disease. Now environmental scientist Alicia Timme-Laragy at the University of Massachusetts Amherst has received a five-year, $1.7 million grant from the National Institute of Environmental Health Sciences for a multi-level study of early life exposure to environmental contaminants and aberrant pancreas development, which may predispose one to diabetes.

Disease may result from environmental contaminant exposure in early life via oxidative stress, disrupted signaling pathways controlling embryo growth, or via subtle structural or functional changes to insulin-producing pancreatic beta cells, she notes. Results of this work will be relevant to public health officials concerned about such exposures as well as molecular biologists studying signaling pathways to gain a mechanistic understanding of disease processes very early in life.

The researchers will study toxic chemicals such as PCB 126, the non-stick coating perfluorooctanesulfonate (PFOS) and phthalates. Timme-Laragy says that "surprisingly little is known about how embryos respond to oxidative stress, or the impact of toxicant exposures on pancreas development." Her long-term goal is to understand how embryos respond to oxidative stress, and how toxic exposures contribute to diabetes during development.

"A lot of scientists are trying to understand these processes, but we will be doing something new by focusing at multiple levels on toxicant effects in pancreas development as a possible predisposition factor in diabetes," she says. "By looking at the genetics, the molecular biology and the <a href="http://www.earth.com/news/earth-produces-methane/">biochemistry</a> and links to health effects, we hope to find targets for prevention."

Because it is difficult to identify embryonic changes in mammalian models, the researchers at UMass Amherst's School of Public Health and Health Sciences including Timme-Laragy and Laura Vandenberg, with partners at Brigham Young and McMaster universities, will use zebrafish, a good model for human development. Embryonic zebrafish will be exposed to the toxic chemicals at different points during development to help the researchers identify possible sensitive windows of pancreas organ formation.

"Zebrafish embryos are transparent, so we can watch for changes fairly easily as they develop and the chemical exposure can be done without hurting the mother fish," she adds. She and colleagues believe theirs is one of the first studies to take a comprehensive look at toxicant effects on pancreas development and the role of oxidative stress as a mechanism for health effects.

The experiments will also include sequential exposures, a way to evaluate the effect of chemical mixtures on target outcomes, Timme-Laragy notes. She and colleagues will use a fluorescent redox biosensor, redox imaging and automated, time-lapse microscopy. It will also advance understanding of a poorly understood but critical fundamental biological process, that is the role of the redox environment in embryonic development, and identify specific targets for mitigation, the environmental toxicologist adds.

Many undergraduate, master of public health and doctoral students are expected to gain laboratory experience in zebrafish culture, identification of embryonic stages, screening for fluorescent markers, genotyping, <a href="https://en.wikipedia.org/wiki/NASA">DNA</a> isolation, embryo imaging and recognition of microscopic malformations and abnormalities on this project.
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Early exposure to pollutants may predispose for diabetes

Early exposure to pollutants may predispose for diabetes. AMHERST, Mass....

<div>Tropical reforestation programs tend to prioritize native pioneer tree species, which colonize disturbed or cleared areas thanks to their high reproductive capacity and rapid growth, among other characteristics. Brazil plant M. affinis favored for reforestation efforts</div>
<div>

According to experts, these species facilitate the transition from deforested land to secondary forest. They stabilize terrain and enhance connectivity between remaining forest fragments by increasing soil permeability, as well as fostering the formation of networks of pollinators and plant seed dispersers.

Despite the ecological importance of pioneer tree species, little is known about their ability to maintain genetic diversity in native populations or the dynamics of gene flow between widely separated forest fragments, according to Rodolfo Jaffé, a researcher at the Vale Institute of Technology (ITV) in Brazil.

"Knowledge of these species' genetics is fundamental to more efficient reforestation or rehabilitation of key ecosystemic functions in the short and medium term. Ecosystems that are rehabilitated using native pioneer tree species will obviously never be the same as the original ones, but the goal is to get as close as possible," said Jaffé.Brazil plant M. affinis favored for reforestation efforts

In partnership with colleagues at the University of Texas at Austin in the United States, Jaffé studied the genetic diversity and differentiation patterns of the native pioneer understory tree Miconia affinis in Panama, Central America. An evergreen with heights typically ranging from 3 m to 6 m, M. affinis is widely distributed in the Neotropics from Mexico to <a href="http://www.earth.com/news/gondwana-ancient-reptile-species/">Brazil</a>.

"The Panama Canal region is a global biodiversity hotspot that has lost over 30% of its forest cover to agropastoral development during the past 50 years, leading to high levels of erosion and sediment deposition in streams and canals with adverse effects on the region's water-holding capacity," Jaffé said.

"The government of Panama wants to reforest degraded and cleared areas to reduce erosion and sediment buildup in the Canal. The native pioneer species present in the region are considered suitable candidates for use in restoration programs."

To find out whether deforested areas form a barrier to populations of M. affinis, the researchers collected leaf tissue from approximately 30 reproductive trees bearing inflorescences or infructescences in 11 different populations along the Panama Canal.

Next, they extracted<a href="https://en.wikipedia.org/wiki/NASA"> DNA</a> from the leaf tissue and genotyped the trees using microsatellite molecular markers, also called simple sequence repeats - short segments of DNA that indicate the most recent evolutionary variations in an individual organism.

They also estimated the influence of geographic distance, elevation and deforestation on the genetic structure and differentiation of the M. affinis populations studied. To do so, they used high-resolution maps of forest cover and elevation in the Panama Canal region, as well as landscape genetics tools.

Their statistical analyses showed that the genetic differentiation of this tree species, which frequently colonizes forest gaps, riparian areas and exposed hillsides, significantly increased with elevation and geographic distance between populations.

"This result means populations of the species become more genetically differentiated as the distance between them increases, whereas the closer they are, the more similar they are genetically. This effect is called the isolation-by-distance pattern and is expected for most plant populations," Jaffé said.

The analyses also showed higher levels of genetic diversity within populations of M. affinis and lower levels of genetic differentiation between populations than for many other pioneer species.

"High genetic diversity within populations and low differentiation between populations are probably due to the species' propensity to colonize deforested landscapes, leading to increased connectivity among populations throughout the region," they say.

The researchers also found that elevation influences genetic differentiation in populations of M. affinis. Populations inhabiting relatively higher altitudes are more genetically differentiated than populations at lower altitudes regardless of the distance between them.

"One reason for this may be that the lower temperature and heavier rainfall at higher elevations compared with lower ones affect flying conditions and the abundance of pollinators and seed dispersers," Jaffé said.

M. affinis is visited by a wide array of social and solitary bees, and seeds from its fruits are dispersed by a variety of birds, bats and monkeys.

Temperature and precipitation also cause earlier flowering at higher altitudes. "As a result, pollinators tend to stay where flowering occurs first, instead of visiting populations at lower altitudes where flowering hasn't begun. Differences in phenology, the timing of fruiting and flowering, can influence genetic structure," Jaffé said.

The researchers did not find evidence that deforestation affects genetic differentiation in populations of M. affinis. A potential explanation is that the high dispersal and colonization capacity of this species promotes gene flow across the region regardless of forest cover.

"Our results suggest human-altered landscapes along the Panama Canal do not limit gene flow between isolated forest populations. Pollinators and seed dispersers are able to visit the trees, crossing deforested areas and pollinating populations located in other areas," Jaffé said.

They estimated an average lifespan of 64.3 years for M. affinis, which generates seeds for the first time at an average of about six years old, and observed that the species is capable of maintaining a high level of genetic diversity regardless of the amount of surrounding forest.

"These characteristics in aggregate make M. affinis an excellent candidate for use in reforestation programs," Jaffé said.

</div>
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Brazil plant M. affinis favored for reforestation efforts

Tropical reforestation programs tend to prioritize native pioneer tree species,...

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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 <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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Lesotho: Africa's "Kingdom in the Sky" Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features northwest Lesotho in South Africa.



According to ESA, Lesotho is the only nation in the world that lies completely above 1,000 m in elevation. The country is famous for its tall mountains and narrow valleys, and is known as Africa's "Kingdom in the Sky."



Out of a population of around two million people, about 80 percent live in rural areas. More than 75 percent of these people are engaged in <a href="https://www.earth.com/news/climate-change-will-have-a-global-impact-on-agriculture/">agriculture</a>, including rainfed cereal production and animal grazing.&nbsp;



ESA reports that the country’s agricultural system faces a growing number of issues, with climate-related vulnerabilities such as drought, floods and extreme temperatures occurring more frequently. 



Diamonds are amongst the minerals found in the mountains. Indeed, Lesotho can truly be called the Kingdom in the Sky. Beautiful, culturally rich, safe, affordable, and easily accessible from Durban and Johannesburg, mountainous Lesotho is a vastly underrated travel destination. the Kingdom of Lesotho (Sotho: 'Muso oa Lesotho) is an enclaved country in southern Africa. It is just over 30,000 km2 (11,583 sq mi) in size and has a population of around 2 million.



Video Credit: ESA&nbsp;&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> Staff Writer 



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Lesotho: Africa's "Kingdom in the Sky"

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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

[sendtonews key="f8fukm28Vz-2491833-12187" type="single"] Today's Video of the Day from NASA...

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Today’s Video of the Day from <a href="https://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 <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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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



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Satellites reveal how Earth's systems are interconnected

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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...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> is focused on the melt ponds that emerge during the spring and summer on the Greenland Ice Sheet, which is the largest ice mass in the northern hemisphere.



"Melt ponds are vast pools of open water that form on both sea ice and ice sheets and are visible as turquoise-blue pools of water in this Copernicus Sentinel-2 image," says ESA.



"When snow and ice melts atop glaciers, water flows in channels and streams and collects in depressions on the surface. These melt ponds can speed up the melting of the surrounding ice since they greatly reduce the ice’s ability to reflect sunlight."



"This can create a positive feedback where an increasing number of melt ponds absorb more heat which causes ice cover to melt even faster."



According to ESA, Greenland has been hit with a late-season heatwave that began in early September. This caused the type of melt event that usually occurs in the middle of summer.



"In a recent paper published in Nature Climate Change, scientists found that major sea-level rise from the melting of the Greenland ice cap is now ‘inevitable’ even if the burning of fossil fuels were to halt overnight," says ESA. "Using satellite observations of Greenland ice loss and ice cap from 2000 to 2019, the team found the losses will lead to a minimum rise of 27 cm regardless of climate change."



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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Melt ponds on the Greenland Ice Sheet

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes how Earth is unique in our solar system for its ability to sustain liquid water on its surface. But now, the water cycle is shifting as the climate warms, and scientists must find ways to predict how these changes will affect water availability.



Overall, 96 percent of Earth's water is saltwater, and nearly all of freshwater is found in ice and groundwater. These sources of water are linked as it passes through solid, liquid and gas phases.



In a warmer climate, the water cycle will be transformed. It will be easier for water to evaporate and form clouds, and storms will become more frequent and intense. Some regions will get too much water, while others will be left without enough water. In addition, soil moisture will be lost - which threatens food security.



Scientists are using satellite data from over the last 40 years to track changes that are happening in the water cycle. This will ultimately help us prepare for extreme events and better manage our water resources, according to ESA.



Video 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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Tracking changes in Earth's water cycle

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Saturn,-,High,Resolution,3d,Images,Presents,Planets,Of,The

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard Space Flight Center</a> features images of Saturn from NASA’s Hubble Space Telescope. The photographs capture the start of the mysterious "spoke season" on Saturn - when unexplained features appear on its rings. 



According to NASA, both the cause of the spokes and their seasonal variability have yet to be fully explained by planetary scientists.



"Like Earth, Saturn is tilted on its axis and therefore has four seasons, though because of Saturn's much larger orbit, each season lasts approximately seven Earth years. Equinox occurs when the rings are tilted edge-on to the Sun," explains NASA.



"The spokes disappear when it is near summer or winter solstice on Saturn. (When the Sun appears to reach either its highest or lowest latitude in the northern or southern hemisphere of a planet.) As the autumnal equinox of Saturn's northern hemisphere on May 6, 2025, draws near, the spokes are expected to become increasingly prominent and observable."



Experts believe that the spokes may be a product of the planet's variable magnetic field. When magnetic fields interact with solar wind, an electrically charged environment is created. This phenomenon is visible on Earth as the northern lights.&nbsp;



"Scientists think that the smallest, dust-sized icy ring particles can become charged as well, which temporarily levitates those particles above the rest of the larger icy particles and boulders in the rings," says NASA.



The spokes were first observed in the early 1980s by NASA's Voyager mission. Depending on the angle of the rings, the spokes can appear dark or light.



"Thanks to Hubble's OPAL program, which is building an archive of data on the outer solar system planets, we will have longer dedicated time to study Saturn’s spokes this season than ever before," said NASA senior planetary scientist Amy Simon, head of the Hubble Outer Planet Atmospheres Legacy (OPAL) program.



"Despite years of excellent observations by the Cassini mission, the precise beginning and duration of the spoke season is still unpredictable, rather like predicting the first storm during hurricane season."



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.

Mysterious "spoke season" captured on Saturn

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Closeup,Of,Fresh,Green,The,Napier,Bush,Grass,As,Animal

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Today’s Video of the Day from <a href="http://www.ntu.edu.sg/">NTU Singapore</a> reveals that some plants can remove toxic heavy metals from soil.&nbsp;



The researchers analyzed samples of various tropical plant species to test for levels of heavy metals and metalloids. The study showed that there are existing plants with high levels of these contaminants, which means that these species are great candidates for drawing pollutants out of the soil.&nbsp;



Among the plants examined in the study, 12 species had accumulated several types of heavy metals and metalloids. These plants are widely available, including species that are native to Singapore.



“In a small nation like Singapore, land may be repurposed to support new development plans, so it is important that we have a green and sustainable way to remediate land that is contaminated," said Professor Lam Yeng Ming.



"We set out to uncover how to better make use of tropical plants to do phytoremediation and through advanced characterization techniques, we showed how some of these tropical plant species can be an environmentally friendly and literally a 'green' way to remove contaminants in soil."&nbsp;



"Phytoremediation also has benefits of cost effectiveness, simplicity of management, aesthetic advantages, and long-term applicability and sustainability. The strategy prevents erosion and metal leaching by stabilizing or accumulating heavy metals, so that helps reduce the risk of contaminant spread.”



Video Credit: NTU Singapore



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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.

Plants help remove heavy metals from contaminated soil

[sendtonews key="6SdlLLbt0t-1988946-12187" type="single"] Today’s Video of the Day from NTU...

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Today’s Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> describes why herbicides are not as effective in killing weeds anymore. In the 20th century, chemical companies developed thousands of herbicides. The most commonly used herbicide was glyphosate, which was introduced in 1974.



Over the past few decades, dozens of species of weeds have evolved resistance to glyphosate. Depending on the site of action, the part of the plant that an herbicide interacts with, weeds may even be resistant to herbicides that have not been developed yet.&nbsp;



With increasing resistance to glyphosate and other herbicides, weeds are - once again - becoming a major concern for farmers.&nbsp;



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.

Weeds are becoming increasingly resistant to herbicides

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Today’s Video of the Day from the <a href="https://www.jpl.nasa.gov/">NASA Jet Propulsion Laboratory</a> (JPL) describes a dust storm on Mars that was nearly twice the size of the United States. As the storm covered the southern hemisphere of the planet, some of NASA’s explorers had to delay their normal activities.



NASA’s Insight lander put itself in a "safe mode" for 11 days to conserve battery power because solar power was disrupted by the dust. The Ingenuity Mars Helicopter postponed flights until conditions improved.



"A fleet of NASA orbiters monitor Martian dust storms like this one and serve as lifelines to Earth by relaying data from the rovers and lander on the ground back to the team. This includes the Mars Reconnaissance Orbiter, MAVEN, and Odyssey," reports JPL.



"Dust storms like this recent one start close to the ground and are spread by wind as they rise – warming the cold Martian atmosphere."



The images in the video were captured by NASA’s Curiosity as the dust rolled in. A fleet of orbiters monitored the dust storm from above, relaying data from Mars’ explorers back to scientists on Earth.



Video &amp; Image Credit: NASA/JPL-Caltech/ASU/MSSS



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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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NASA monitors giant dust storms on Mars

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Today's Video of the Day from the <a href="http://www.esa.int/">European Space Agency</a> features Qeshm Island in the Strait of Hormuz. This strait provides the only sea passage from the Persian Gulf to the open ocean.



Qeshm is separated from the Iranian coast by the Clarence Strait, also known as Khuran.&nbsp;The Hara Forest Protected Area is a network of shallow waterways and forest located between the island and the mainland. This protected region is home to sea turtles, snakes, and more than 150 species of migrating birds.



Qeshm is famous for its wide range of&nbsp;ecotourist&nbsp;attractions, such as the&nbsp;Hara marine forests. According to environmentalists, about 1.5 percent of the world birds and 25 percent of Iran's native <a href="https://www.earth.com/news/female-hummingbirds-avoid-sexual-harassment-by-looking-like-males/">birds</a> annually migrate to the forests, which are the first national geo park in Iran.



Tourists are also drawn to the island to see an age-old Portuguese&nbsp;fort, historic mosques, the&nbsp;Seyyed Mozaffar&nbsp;and&nbsp;Bibi Maryam&nbsp;shrines, and the "Valley of Stars."



The average temperature on the island is 81 degress and the region is often hot and humid. From June to August, the island is described as being oppressively hot. The ideal time to visit is during the winter season. 



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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Qeshm Island in the Strait of Hormuz

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Inhambane Bay in southeast Mozambique.&nbsp;



"Inhambane Bay is a deep inlet into which the small Mutamba River flows," says ESA. "On one side of the bay lies the historical city of Inhambane, capital of the Inhambane Province, while the sister city of Maxixe, the economic capital of Inhambane, sits across from it. The province is the second largest grower of cashews, after Nampula, and it also produces coconut and citrus fruits."



The beaches of Barra and Tofo are popular with tourists. There are also coral reefs along the long coastline of Inhambane, making it an ideal destination for scuba diving and snorkeling.



"Mozambique’s extensive coastline heightens the country’s vulnerability to tropical cyclones that develop in the Indian Ocean as well as storm surge flooding," says ESA.



"More than half of the population lives in low lying coastal areas, putting communities at risk. Inhambane Bay was dangerously close to where Cyclone Idai made landfall in 2019 causing widespread destruction to the country."



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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Inhambane Bay in southeast Mozambique

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency </a>&nbsp;features the Kangerlussuaq Glacier, one of the largest tidewater outlet glaciers in Greenland. The glacier is located on the east coast of the Greenland ice sheet.



As human-induced climate change continues to drive up temperatures, global ice loss is accelerating at an alarming rate. ESA reports that, over the past decade alone, 3.5 trillion tons of ice have melted from the Greenland ice sheet. This is enough to cover the UK with meltwater 15 meters deep.



Based on satellite imagery, researchers determined that Kangerlussuaq entered a new phase of rapid retreat and acceleration in 2017. In their study, published in <a href="https://www.frontiersin.org/articles/10.3389/feart.2019.00123/full">Frontiers in Earth Science</a>,&nbsp; the experts report that the glacier's ice front is now at its most retreated position since the early 20th century.



"Given Kangerlussuaq’s previous impacts on both the magnitude and pattern of ice sheet wide mass loss, we predict that its new phase of retreat, acceleration and thinning will markedly enhance the south-east region’s contribution to increasing discharge from the ice sheet," wrote the study authors.&nbsp;&nbsp;



"More broadly, accurate forecasting of the ice sheet’s contribution to sea level rise will require a deeper understanding of, and responses to, these non-linear ice dynamic processes."



Video 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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Kangerlussuaq Glacier on the Greenland ice sheet

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes the complex relationship between ocean and climate. ESA's Climate Change Initiative will help us understand how oceans influence the climate and how climate change is impacting the oceans.&nbsp;



"Earth’s oceans are huge heat stores, soaking up 93% of the excess heat from human activity over the past 70 years. Ocean currents redistribute heat around the planet, from the Equator to the poles. Where this ocean heat goes influences weather patterns and regional climate," explains ESA.



"As well as absorbing heat, oceans are a natural carbon sink, absorbing a quarter of carbon dioxide emissions from human activity. This has led to the acidification of ocean water, threating marine life."



The amount of heat and carbon dioxide soaked up by the ocean depends on specific variables, including phytoplankton, temperatures, waves, salinity, and ice cover. Satellites can be used to measure these variables from space.



"From their unique vantage point, satellites provide key information for understanding the complexities of our planet and monitoring environmental issues," says ESA.



Video 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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Ocean heat influences regional climate

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes the importance of monitoring the shape of the sea surface, which is constantly changing. These observations have many applications, such as ship routing, <a href="https://www.earth.com/news/the-modem-ocean-is-a-tough-place-for-whales-to-survive/">ocean</a> current forecasting, and debris tracking.



"A project supported by the Discovery element of ESA’s Basic Activities recently investigated a new technique to measure sea surface topography very precisely," reports ESA.



"The technique involves looking at satellite navigation (GNSS) signals that have been reflected off of the sea surface at very low angles. At these so-called grazing angles, waves and surface roughness have very little impact on the reflection process; the sea surface acts as a very smooth mirror."



Estel Cardellach is the principal investigator at the Institute for Space Studies of Catalonia, who first submitted the idea for the project.



“In a mirror-like reflection the phase of the signal can be tracked – it is continuous," said Cardellach. "Different surface heights result in different phase measurements. It gives a very precise measurement of the surface altitude at a few centimetres’ precision.”



The researchers developed a GNSS receiver and set up an experiment in the Balaeric Islands to collect signals from the receiver that were reflected off the sea surface. Ultimately, these signals will provide improved measurements of the shape of the sea surface.



Image/ Video 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

Monitoring the dynamic shape of the sea surface

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Aerial,Photo,Of,River,In,Amazon,Rainforest,Jungle,In,Peru

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Today’s Video of the Day from <a href="https://www.nasa.gov/goddard">NASA’s Goddard Space Flight Center</a> describes how scientists are using autonomous sound sensors to monitor deforestation in the Amazon. By recording soundscapes, the experts can determine which animals are present through their distinct sounds.&nbsp;



Using this method, sounds can be used as scientific measurements to analyze the effects of deforestation. The researchers will gain a better understanding of how the acoustics of a forest can be used to measure its health.&nbsp;



"From space, parts of the Amazon rainforest that have previously been logged or burned may look lush and green, like a place buzzing with activity and full of sounds. But inside the rainforest, the animal life may tell a different story, of a harsh environment and a quieter soundscape," says NASA.



Video Credit: NASA’s Goddard Space Flight Center&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

Monitoring deforestation in the Amazon through sounds

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