The Arctic’s icy landscapes are more than just scenic wonders. They play an important role in regulating Earth's climate. 



New research shows that climate change may be weakening one of the Arctic’s most important defenses - the ability of its fjords to capture and store carbon.



Scientists from the <a href="https://ic3.uit.no/research" target="_blank" rel="noreferrer noopener">iC3 Polar Research Hub</a> have been studying these changes closely. Their work focuses on Kongsfjorden in Svalbard, one of the Arctic’s dynamic fjord ecosystems. 



The experts found that <a href="https://www.earth.com/news/melting-ice-can-speed-up-continental-drift-and-fuel-volcanic-eruptions/" target="_blank" rel="noreferrer noopener">melting ice</a> is not just altering the local environment. It is also affecting the balance of life that helps keep carbon dioxide out of the atmosphere.



<h2 class="wp-block-heading" id="h-microscopic-heroes-of-the-arctic">Microscopic heroes of the Arctic</h2>



<a href="https://www.earth.com/news/arctic-heatwaves-have-complex-effects-on-phytoplankton-food-web/" target="_blank" rel="noreferrer noopener">Phytoplankton</a>, tiny microscopic plants, are the backbone of Arctic food webs. They are not just food for fish and marine animals. They also play a key part in cycling carbon and regulating the climate.



When ice retreats, more sunlight reaches the ocean's surface. This encourages phytoplankton to grow. Life flourishes, with fish and other animals gathering around these rich patches of productivity.



“The changes we observe suggest that the future of these fjord ecosystems will depend heavily on how well they adapt to a warmer climate," explained Jochen Knies, lead author of the study.



<h2 class="wp-block-heading" id="h-rising-ocean-temperatures">Rising ocean temperatures</h2>



Warmer water can fuel phytoplankton growth during bright <a href="https://www.earth.com/news/ice-free-arctic-summers-could-be-the-new-normal-by-2030/" target="_blank" rel="noreferrer noopener">Arctic summers</a>. At first glance, this sounds like good news. However, it comes with hidden problems. 



As surface waters warm, they become more layered and stable. This prevents nutrients from reaching the surface where phytoplankton live.



While more phytoplankton might bloom at first, their ability to capture and lock away carbon could shrink over time.



“While we anticipate greater primary production, the reality is that warmer, stratified waters could hinder the fjords' ability to serve as effective carbon sinks,” said Jochen.



<h2 class="wp-block-heading" id="h-the-disappearing-nutrient-lifeline">The disappearing nutrient lifeline</h2>



Glacial meltwater brings crucial nutrients to Arctic fjords. These nutrients support the entire <a href="https://www.earth.com/news/marine-food-chains-threatened-by-ocean-acidification/" target="_blank" rel="noreferrer noopener">marine food chain</a>. 



As glaciers retreat, the flow of meltwater becomes unpredictable. Without a steady supply, fjord ecosystems could lose their ability to support rich marine life.



This would not only affect fish and marine mammals. It could also weaken the Arctic’s ability to capture carbon, shifting the balance of life and climate regulation in the region.



<h2 class="wp-block-heading" id="h-the-arctic-s-warning-to-the-world">The Arctic’s warning to the world</h2>



The Arctic acts as a global climate barometer. Changes here are often early signs of bigger challenges ahead. The <a href="https://www.earth.com/news/shrinking-arctic-ice-changing-global-climate-warm-arctic-cold-eurasia/" target="_blank" rel="noreferrer noopener">shrinking ice</a> caps are more than a symbol of loss - they are a warning.



“The future of Arctic fjords reflects the broader climate challenges we face globally,” Jochen warns.



What happens in the Arctic does not stay in the Arctic. These fjords are sending a message. Whether we listen could shape the future of the planet.



<h2 class="wp-block-heading" id="h-climate-change-is-touching-everything">Climate change is touching everything</h2>



The effects of climate change are no longer limited to remote areas like the Arctic. They are penetrating into almost every corner of the globe, transforming weather patterns, ecosystems, and even lifestyles.



Rising temperatures are causing more severe storms, increased durations of drought, and volatile growing seasons for crops. Ocean currents are changing. Animals are moving into new ranges. Whole industries, from agriculture to tourism, are being compelled to adjust to a new normal.



What is unfolding in Arctic fjords is just one part of a far larger puzzle. Melting glaciers might be far away from the concerns of most individuals, yet they are linked with rising sea levels that pose a threat to coastal metropolises thousands of miles distant.



Shifts in phytoplankton blooms may also seem like a minor thing. But they are indicative of a broader disruption in the natural systems of the planet, with effects that can ripple across food webs and economies globally.



Scientists emphasize that these changes are happening at an accelerating rate than many models previously estimated. Every degree of warming counts. 



Each choice, from cutting emissions to preserving natural reserves, might make difference toward a more stable future. The tale of the Arctic fjords is an indication of the global challenge facing us all.



The full study was published in the journal Communications Earth &amp; Environment.



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Arctic fjords show signs of struggle in a warming world

The Arctic’s icy landscapes are more than just scenic wonders. They play an important role in regulating Earth's climate. New research shows that climate change may be weakening one of the Arctic’s most important defenses - the ability of its fjords to capture and store carbon. Scientists from the iC3 Polar Research Hub have been studying these changes closely. Their work focuses on Kongsfjorden in Svalbard, one of the Arctic’s dynamic fjord ecosystems. The experts found that melting ice is not just altering the local environment. It...

<div>Tropical Depression 6 forms in the Atlantic. Tropical Depression 6 developed in the far eastern North Atlantic Ocean and NASA and NOAA satellites provided infrared and visible views at the storm.</div>
<div>

The Global Precipitation Measurement mission or GPM core observatory satellite collected data as the newest <a href="https://www.bing.com/search?q=atlantic+ocean&amp;cvid=ab03a344d2054131a2bee2f578f8cb9f&amp;FORM=ANAB01&amp;PC=HCTS">Atlantic Ocean</a> tropical depression was forming on August 16, 2016 at 4:31 p.m. EDT (2031 UTC). GPM data showed that the forming tropical cyclone was getting organized. A strong band of rainfall south of the center of the low's circulation was shown with data from GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments. DPR measurements found that an intense shower in this band was dropping rain at a rate of over 155 mm (6.1 inches) per hour.

GPM's radar data (DPR Ku Band) data was used to create a 3-D slice through the forming tropical depression. The 3-D image, created at <a href="http://www.earth.com/video/nasa-telescope-will-capture-millions-of-galaxies/">NASA's</a> Goddard Space Flight Center in Greenbelt, Md. showed intensity and heights of precipitation in some tall storms reached heights of over 15 km (9.3 miles).Tropical Depression 6 forms in the Atlantic

The Atmospheric Infrared Sounder or AIRS instrument that flies aboard NASA's Aqua satellite analyzed the depression within an hour after it formed. AIRS looked at Tropical Depression 6 (TD6) in infrared light on Aug. 16 at 11:41 p.m. EDT (0341 UTC on Aug. 17) gathering temperature data of the system's clouds. Strong thunderstorms were seen north of the center of circulation where cloud top temperatures exceeded minus 63 degrees Fahrenheit (minus 53 degrees Celsius). Storms with temperatures that cold are high in the troposphere and NASA research has shown they have the ability to generate heavy rain.

On Aug. 17 at 11 a.m. EDT the National Hurricane Center discussion noted "The depression's overall cloud pattern and low-level wind field have continued to improve, although cloud tops have warmed considerably near the center since the previous advisory."

NOAA's GOES-East satellite captured a visible image of Tropical Depression 6 in the far eastern Atlantic on Aug. 17 at 10:45 a.m. EDT (1645 UTC). NOAA manages the GOES series of satellites and the NASA/NOAA GOES Project at NASA's Goddard Space Flight Center in Greenbelt, Maryland uses the satellite data to create images and animations.

At 11 a.m. EDT (1500 UTC) the center of Tropical Depression Six (TD6) was located near 14.0 degrees north latitude and 36.4 degrees west longitude, about 840 miles (1,350 km) west of the Cape Verde Islands. The Cape Verde islands are made up of two small archipelagos, located about 400 miles off of Africa's west coast.

The National Hurricane Center (NHC) said that the depression is moving toward the west-northwest near 15 mph (24 kph) and this motion with some decrease in forward speed is expected during the next couple of days.

Maximum sustained winds are near 35 mph (55 kph) with higher gusts. Slow strengthening is forecast during the next 48 hours, and the depression is likely to become a tropical storm today, Aug. 17.
###
For the latest forecasts on TD6, visit the National Hurricane Center website: <a href="http://www.nhc.noaa.gov/" target="_blank" rel="noopener">http://www.nhc.noaa.gov</a>.

</div>

Tropical Depression 6 forms in the Atlantic

Tropical Depression 6 forms in the Atlantic. Tropical Depression 6...

The race is on to win President Barack Obama's attention as he puts some final touches on his environmental legacy.
Conservation groups, American Indian tribes and federal lawmakers are urging his administration to preserve millions of acres as national monuments. Such a designation often prevents new drilling and mining on public lands, or the construction of new roads and utility lines.
The flurry of activity is creating enthusiasm - and tensions - in several parts of the country.
Efforts are underway in Utah, Arizona, Nevada, Maine and elsewhere to get Obama to designate new national monuments. Proponents aren't just focused on land. They're also looking to greater protections for vast swaths of ocean bottom off the coasts of New England, <a href="https://en.wikipedia.org/wiki/Deserts_of_California">California</a> and Hawaii.
Obama has created or expanded 24 national monuments during his seven-and-a-half-year tenure, covering more acreage than any other president. Almost nobody thinks he's done yet. Environmental groups are urging him to go big as he leaves office.
"What he's done in terms of protection has been good, but what he does next is how we measure whether his legacy is great or not," said Sharon Buccino of the Natural Resources Defense Council.
Proponents of the various monument proposals know that the next administration will have other immediate priorities. Some presidents, including Richard Nixon, Ronald Reagan and George H.W. Bush, never exercised their powers to designate national monuments through the 1906 Antiquities Act. The proponents recognize the window of opportunity could be closing for several years.
They're also aware that <a href="http://www.earth.com/news/coal-plants-closed-trump/">Obama's</a> immediate predecessors, Presidents Bill Clinton and George W. Bush, waited almost exclusively until their final months in office to designate national monuments, so there is a chance Obama will become even more active.
That's disconcerting for many members in Congress, particularly Republicans, who say the Antiquities Act wasn't designed to bolster a president's legacy.
"Presidents are starting to abuse this authority as they leave the office. If they actually tried to do this on the first day so that Congress had some ability to respond to it, and the people did, I'd be more comfortable about what their motives are," said GOP Rep. Rob Bishop of Utah, chairman of the House Natural Resources Committee.
Christy Goldfuss, managing director of the White House Council on Environmental Quality, won't discuss specific national monument possibilities, but said Obama "certainly feels we have more to do to protect this planet from climate change, so we'll see how this plays out."
Bishop said lawmakers would work with the administration on additional protections for some public lands, but environmental groups and others are less willing to compromise knowing they can go to the president to get a national monument designation.
"It actually impedes the ability of bringing everyone together knowing the president has this power to create a monument whenever he wants to," Bishop said.
Goldfuss said the administration works to get extensive local feedback before making any monument determination. She and others such as Interior Secretary Sally Jewell and Agriculture Secretary Tom Vilsack feed the president information, but in the end, it's his decision.
"It is all about taking the long view here and recognizing there are things of importance to future generations, and the president is in a good spot to make that determination," Goldfuss said.
Bishop's state is home to perhaps the most talked about effort, the proposed Bears Ears National Monument.
Utah's Republican-dominated Legislature overwhelming voted for a resolution opposing the monument. Republican Gov. Gary Herbert said a monument designation would bring more visitors but not necessarily more resources, leading to an increase in vandalism and environmental degradation.
Bishop wants instead additional protections for about 1.4 million acres of the Bears Ears area and opening up other lands for gas and oil exploration and recreation.
Matt Keller, the national monuments campaign director for the Wilderness Society, said he believes the prospects for a monument designation in Bears Ears are promising. Jewell's fact-finding trip to the region last month shows the administration is serious about protecting the thousands of artifacts and rock carvings documenting how Native Americans lived through the centuries.
"A big priority for them is protecting lands that are inclusive of diverse populations and tell the story of the American people a little more broadly," Keller 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.

Obama puts final touches on his environmental legacy

The race is on to win President Barack Obama's attention...

<div>Reducing pollution from oil production. Last year, dozens of major oil companies and oil-producing nations agreed to end the routine flaring of natural gas from wells by 2030. This burning off of uncaptured methane in addition to simply letting it escape into the air -- a process called venting -- releases pollutants and the greenhouse gases carbon dioxide and methane into the atmosphere. Now in ACS' journal Energy &amp; Fuels, researchers report a strategy that could help producers work toward this goal of reducing pollution from oil production.</div>
<div>

Although the percentage of gas from oil production that is vented or burned off rather than captured has decreased over the past few years, the total volume is still considerable. Operations in the Northwest's Bakken Formation, one of the largest oil reservoirs in the U.S., flares and vents an estimated 250 million standard cubic feet of natural gas per day. Oil production in Texas' Eagle Ford formation flares and vents nearly 100 million standard cubic feet per day. Environmentalists and others have called for oil companies to capture the gas, which could be used to generate power or recover even more oil, rather than burn it off or release it into the atmosphere. But the infrastructure to do this hasn't caught up with the rapid growth of oil production. Milind Deo and colleagues set out to design a better facility for handling gas associated with oil operations.

The researchers investigated the application of staged separation, using a high-pressure step followed by a lower-pressure one, and demonstrated that this could reduce the rates of venting and flaring by up to 70 percent. The concept of staged separation has been used in production from conventional oil reservoirs, but has not been widely applied in the production of liquids from shale formations. Upfront costs would be higher than separating oil and gas in one step, but in the long run, the cuts in waste gas would result in a more sustainable process, the researchers say.
###
The authors acknowledge funding from an industry consortium at the <a href="https://egi.utah.edu/" target="_blank" rel="noopener noreferrer">Energy and Geosciences Institute at the University of Utah</a>.

The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With nearly 157,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society, contact <a href="mailto:newsroom@acs.org">newsroom@acs.org</a>.

Follow us: <a href="https://twitter.com/ACSpressroom" target="_blank" rel="noopener noreferrer">Twitter</a> <a href="https://www.facebook.com/pages/American-Chemical-Society-Pressroom/130342583687829" target="_blank" rel="noopener noreferrer">Facebook</a>

</div>

Reducing pollution from oil production

Reducing pollution from oil production. Last year, dozens of major...

<div>
<div class="img-wrapper">Tropical Storm Chanthu was bringing heavy rainfall and gusty winds to the big island of Japan when NASA's Aqua satellite passed overhead. Tropical Storm Chanthu seen moving over northern Japan causing a huge concern on wind speed.</div>
The Atmospheric Infrared Sounder or AIRS instrument that flies aboard NASA's Aqua satellite analyzed Chanthu in infrared light on Aug. 16 at 12:47 p.m. EDT (1647 UTC) gathering temperature data of the system's clouds.

Although the storm appeared elongated, strong thunderstorms were still occurring around the center of circulation although they appeared to be weakening. Some cloud top temperatures of the strongest storms exceeded minus 63 degrees Fahrenheit (minus 53 degrees Celsius). Storms with temperatures that cold are high in the troposphere and<a href="https://en.wikipedia.org/wiki/NASA"> NASA</a> research has shown they have the ability to generate heavy rain. The storm also appeared somewhat elongated from northwest to southeast, likely as a result of interaction with land.

At 11 p.m. EDT on Aug. 16 (0300 UTC on Aug. 17) the Joint Typhoon Warning Center issued their final warning on Chanthu. At that time the tropical storm was located approximately 171 nautical miles north-northeast of Yokosuka, <a href="http://www.earth.com/news/nearly-complete-duck-billed-dinosaur-fossil/">Japan</a>. Maximum sustained winds were near 40 mph (35 knots/62 kph). Chanthu has tracked northwestward at 15 knots (17.2 mph/27.7 kph). Tropical Storm Chanthu seen moving over northern Japan has also caused a lot of tropical weather, wind speed and rain.

The Japan Meteorological Agency noted that at 8:50 a.m. EDT (12:50 UTC) on Aug. 17, Chanthu was centered near 44.0 degrees north latitude and 143.0 degrees east longitude, over the north central part of the island of Hokkaido. Chanthu was moving to the north at 40 mph (35 knots/62 kph).

The Joint Typhoon Warning Center (JTWC) forecast noted that vertical wind shear is rapidly increasing (25 to 30 knots) as Chanthu tracks along the western edge of a subtropical ridge

</div>
<div></div>

Tropical Storm Chanthu seen moving over northern Japan

Tropical Storm Chanthu was bringing heavy rainfall and gusty winds...

<div>
<div class="img-wrapper">Unexpected complexity in coral reefs complicates restoration efforts. Coral reefs are delicate ecosystems, which are endangered by climate change and human activities. The restoration of these underwater environments is typically carried out by transplanting corals from healthy reefs to compromised ones. This practice can be problematic, as it overlooks the local characteristics of each reef, and may reduce genetic diversity.</div>
The first step towards an ecologically mindful restoration is the detailed understanding of the population structure and genetic variation of each reef. Yuna Zayasu and Chuya Shinzato, from the Marine Genomics Unit of the Okinawa Institute of Science and Technology Graduate University (OIST), investigated 298 colonies from 15 locations across the Nansei Archipelago, in <a href="http://www.earth.com/news/nearly-complete-duck-billed-dinosaur-fossil/">Japan</a>. They compared the DNA of one of the most widespread coral, scientifically known as Acropora tenuis, to gain a deeper comprehension of its genetic diversity. Their project was a collaboration between several institutions: the Japanese Fisheries Research Agency, the University of the Ryukyus, OIST Marine Biophysics Unit and the OIST Marine Genomics Unit. Their results are published in Ecology and Evolution.

"We wanted to check the genetic correlation between different colonies," Zayasu explained. The researchers used a technique similar to the one commonly employed for paternity test, comparing 13 DNA portions for each different sample of the coral. Such portions are called 'microsatellites'. "The results show that there are at least two different populations of A. tenuis in the Nansei, despite the fact that there is no geographic boundary between these populations." Also the Unexpected complexity in coral reefs complicates restoration efforts causing a lot more harm than expected.

[caption id="attachment_2410504" align="alignleft" width="150"]<img class="size-thumbnail wp-image-2410504" src="http://cff1.greenatom.earth/uploads/2016/08/17101214/cff1.greenatom.earthuploads20160817101211media.eurekalert.orgmultimedia_prodpubweb122019_web-27dce3dc8a4abc18c7d297664527be9547acc776-50dc84b3b00c254ae34595c876a06b843f76399a-150x150.jpg" alt="coral Acropora tenuis" width="150" height="150" /> coral Acropora tenuis[/caption]

The finding is particularly interesting, because it questions the previous assumption that A. tenuis has the ability to easily disperse throughout the Nansei islands. This assumption was based on the importance attributed to the main marine current in the Nansei - the Kuroshio Current - in the life cycle of the coral. Specifically, on the influence that the Kuroshio could have while the coral is in its larva form, swimming to select a settlement site.

Zayasu and colleagues are suggesting that there are other factors that are key to explain the complex population structure. Specifically, a local current - ignored in coral studies to date - that flows in the opposite direction of the Kuroshio. This new hypothesis is supported by the fact that the Kuroshio Current flows from south to north, while one of the A. tenuis population shows signs of north to south expansion. The south of Okinawa Island is the potential contact point of the two populations.

"While we have clearly detected two populations, it is possible that there are more," Zayasu said. "Whole genome analysis - that allows full access to the <a href="https://en.wikipedia.org/wiki/NASA">DNA</a> of an organism - could in the future reveal more detailed population relationship, possibly even highlighting historical events such as local extinction and recovery."

The uniqueness of the coral reef that this study presents is noteworthy, because if each reef is a distinctive environment for unique varieties of corals, reef restoration should aim to protect the specific characteristics of each local habitat and population.


</div>
<div></div>

Unexpected complexity in coral reefs complicates restoration efforts

Unexpected complexity in coral reefs complicates restoration efforts. Coral reefs...

<div>
<div class="img-wrapper">Slower snowmelt reduces available drinking water. Also Western communities are facing effects of a warming climate with slower and earlier snowmelt reducing streamflows and possibly the amount of water reaching reservoirs used for drinking water and agriculture, according to a study published in July.</div>
"As the climate warms, there is actually a slower snowmelt - both in timing and rates, which makes for a less efficient streamflow," Adrian Harpold, ecohydrologist at the University of Nevada, Reno said. Harpold, who initiated the study two years ago at the University of <a href="http://www.earth.com/organizations/environment-colorado/">Colorado</a> Boulder, is a co-author of the paper published in AGU publications Geophysical Research Letters.

"I know, it's counterintuitive, but with a warming climate snowmelt starts sooner in the season, and at a slower rate because the warming occurs earlier when days are shorter and we have less sunlight," he said. "What makes runoff less efficient is that slower snowmelt reduces the amount of moisture being pushed deep into the subsurface where it is less likely to evaporate" Slower snowmelt reduces available drinking water also causing  a lot more damage for the agriculture too.

Higher snow melt rates can develop a pressure gradient that forces moisture deeper into the ground. With lower snow melt rates less water leaves the subsurface where the root systems of trees, bushes and grasses can access the water, which increases the amount of evapotranspiration into the atmosphere.

"It's ubiquitous in the western U.S.; the trends are consistent to all mountain ranges across the West," Harpold said.

Harpold, who's Nevada Mountain Ecohydrology Lab is based in the College of Agriculture, Biotechnology and Natural Resources, continued to work with the team from CU Boulder after coming to the University of Nevada, Reno.

The researchers used an exclusive modeling system to study the effects of slower snowmelt across various regions of the western United States including the Cascade range, the Sierra Nevada range, the Wasatch range and the Rocky Mountains. All of these areas see significant seasonal snow accumulation and generate water resources for downstream communities.

"Theo did the heavy lifting with the interpretation of the results and the writing of the paper," Harpold said of lead author of the study Theodore Barnhart, a graduate researcher at the Institute for Arctic and Alpine Research at CU Boulder.

"Of all the regions we studied, streamflow from Colorado's Rocky Mountains is most sensitive to a change in snowmelt," Barnhart said. "This analysis suggests that all of the regions studied will experience a decrease in streamflow with a decrease in snowmelt rate, with some regions exhibiting more streamflow sensitivity than others."

"The Sierra is affected similarly and, besides the Truckee River basin, Northern California will feel an impact from the reduced and early streamflows," Harpold said. "The snowpack in the Sierra is one massive reservoir that our communities, forests and river environments have come to rely on.

"Given that 60 million people in the western U.S. depend on snowmelt for their water supply, the future decline in snowmelt-derived streamflow may place additional stress on over-allocated water supplies," said Noah Molotch the director of the Center for Water Earth Science &amp; Technology CWEST in the CU Boulder Department of Geography and also a co-author of the paper.
###
Additional co-authors of the study "Snowmelt rate dictates streamflow" are, from CU Boulder, Ben Livneh, John Knowles and Dominik Schneider. The study was funded through the National Science Foundation with additional assistance from the U.S. Department of Agriculture and a <a href="https://en.wikipedia.org/wiki/NASA">NASA</a> Earth and Space Science Fellowship.

Harpold's interests are in understanding the fate and transport of water, energy, and biogeochemical solutes at the landscape scale through improved understanding of ecohydrologically mediated processes. His research threads between basic and applied science. He received his doctorate from Cornell University and his masters and batchelors from Virginia Tech. He spent time as a post-doctoral researcher at the University of Colorado and the University of Arizona.

</div>

Slower snowmelt reduces available drinking water

Slower snowmelt reduces available drinking water. Also Western communities are...

<div>Managing methane emissions from livestock manure. It is currently not possible to quantify emissions of methane from livestock manure. This is a significant problem, in particular at a time where the EU Commision requires Denmark to reduce drastically emissions of greenhouse gases from <a href="http://www.earth.com/news/urban-agriculture-food-desert/">agriculture.</a> Without methods to quantify emissions, it is also not possible to document effects of changes in management.</div>
<div>

A new research article, published this week in the journal <a href="https://en.wikipedia.org/wiki/NASA">PLOS ONE</a>, addresses this challenge and proposes a method which could be an important step towards quantifying methane emissions and degradation processes associated with manure management.Managing methane emissions from livestock manure

The specific challenge is that the mainly liquid manure (slurry) is collected in pits under animal confinements for up to a month before exported to an outside storage tank, or for treatment. During this period degradation of manure organic matter begins and may lead to emissions of both methane and carbon dioxide. However, animals in the house are also a source of both gases, and in practice emissions from livestock and their manure cannot be separated. As a result, the total emission of methane from manure in pits and outside storage tanks, and the degradation of manure organic matter, cannot be verified.

The new method proposed here is based on laboratory measurements of methane production in liquid manure samples collected on farms. A simple model is used to calculate daily emissions. This model can then be used to evaluate effects of changes in management or treatment of the manure, for example biogas treatment.

Methane is, after carbon dioxide, the most important source of greenhouse gases from agriculture, and the most important on-farm source. Here the largest single source is animal digestion, especially in ruminants such as cattle, whereas on pig farms manure is the main source. Since the residence time of methane in the atmosphere is short compared to other greenhouse gases, a reduction of methane will be particularly effective in the short term at reducing climate forcing. Moreover, methods to reduce methane emissions from manure are already available (biogas treatment, slurry acidification). For these reasons methane emissions from livestock manure is an obviouos target for greenhouse gas mitigation.

Degradation of manure organic matter leads to emissions of methane, but even larger emissions of carbon dioxide. Both methane and carbon dioxide contain carbon from manure organic matter that is degraded. This loss of organic carbon is critical for the biogas potential of manure which is directly related to the degradable organic matter left in the manure. For example, a shorter collection period would likely increase biogas production while at the same time reducing methane emissions, but currently these effects cannot be documented. The article discusses this synergy and concludes that a new method must also be able to quantify the emission of carbon dioxide, in order to estimate the loss of degradable organic matter from slurry pits. Plans to further develop the method have been described in a new research proposal in collaboration with research institutions in Germany, Netherlands, Great Britain and Sweden, and a Swedish company.


</div>
<div></div>

Managing methane emissions from livestock manure

Managing methane emissions from livestock manure. It is currently not...

The orange-and-black automated signs lining state highways still warn that <a href="http://www.earth.com/news/southern-california-mountain-lions-extinction/">California</a> is in severe drought, but Californians this summer are getting a second chance to show whether they can save water without the state ordering them. California lifts mandatory water restrictions showing a huge change in the savings of water.
After lifting nine months of mandatory state water restrictions for families and non-farm businesses, authorities caution that they could impose state limits again as soon as this winter should the state's 39 million people return to water-wasting, drought-oblivious ways.
"We've been clear at a state level we're still in a drought, there's still a need for conservation," Max Gomberg, conservation manager for the state Water Resources Control Board. But "we don't need people to go to extraordinary measures like they did last year."
While an El Nino system brought some rain and snow to Northern California last winter, nearly two-thirds of the state remains in severe drought or worse for a fifth year. But citing the slightly improved precipitation, California by June lifted a 25-percent mandatory conservation order in effect for cities and towns statewide for most of a year.
On Tuesday, the state announced that all but 68 of the 411 larger water districts had gotten out from under the threat of localized conservation orders from the state. The water agencies did that by declaring they had enough water to get by even if the drought lasts another three years.
Environmental groups are skeptical all the water districts have as robust a water supply as they claim, and say lifting of mandatory conservation sends the wrong message to ordinary Californians as the drought persists. California lifts mandatory water restrictions
"Moving to zero percent mandatory conservation - it's a confusing message to be sending to California. We're in the midst of the hottest summer on record and fighting raging wildfires," said Tracy Quinn, senior water policy analyst at the Natural Resources Defense Council environmental group.
Water agencies, however, say they have built water-conservation into their operations now.
Most water districts had to raise rates last year, which gives consumers an incentive to save, said Tim Quinn, executive director of the Association of California Water Agencies trade group. Most water <a href="https://en.wikipedia.org/wiki/NASA">districts</a> also offered water-saving incentives, such as paying customers to remove thirsty lawns.
What the lifting of mandatory conservation means is that this summer, unlike last, Californians don't have to do things like keep a bucket in the shower to catch water for reuse, the water-industry representative said.
"It is the end of inconvenience, but it is not the end of conservation," Tim Quinn said.
Californians didn't do well the last time someone asked them to voluntarily save water. In 2014, requested by Gov. Jerry Brown to cut water use 20 percent given the drought, Californians managed less than half of that.
Brown made 25 percent conservation mandatory for cities and towns in spring 2015.
This time around, state officials will be happy if Californians manage around 20 percent water savings, compared to the benchmark water-use year of 2013, said Gomberg, the state water official. If people manage just 10 percent conservation or less now, that would be cause for concern for state water officials when they revisit the matter after January, Gomberg said.
In Palm Springs, water-agency spokeswoman Ashley Metzger said Wednesday that local water officials were still pushing hard on conservation programs, including kicking off a new rebate program promoting lawn removing at noon that day.
"Oh, my goodness, yes," Metzger said, when asked if she expected strong demand for the lawn-removal rebates.
Metzger's district, the Desert Water Agency, is now asking customers to keep water use down by 10- to 13 percent, voluntarily, she said.
The Palm Springs message to water users in summer 2016? "We have a strong local supply but there's a still a statewide issue" with water, Metzger said. "I think it's definitely a nuanced message."
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Information from: The Sacramento Bee, <a href="http://www.sacbee.com/">http://www.sacbee.com</a>
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California lifts mandatory water restrictions

The orange-and-black automated signs lining state highways still warn that...

<div>
<div class="img-wrapper">Study: Meadow full of flowers benefit mankind The more it swarms, crawls and flies the better it is for humans. This is the finding of a study published in "Nature". More than 60 researchers from a number of universities were involved, including the Technical University of <a href="http://www.earth.com/news/space-agencies-asteroid-defense/">Munich</a>, the Institute of Plant Sciences at the University of Bern and the Senckenberg Biodiversity and Climate Research Centre in Frankfurt. A diverse ecosystem populated by many species from all levels of the food chain provides higher levels of ecosystem services, the team reports. Even rather unpopular insects and invisible soil-dwelling organisms are important in maintaining a wide range of <a href="https://en.wikipedia.org/wiki/NASA">ecosystem</a> services. The results underline the necessity of maintaining species-rich ecosystems for the good of humanity.</div>
Grasslands full of flowers are not only beautiful they also provide many important services for humans. These include food production, alongside supporting services such as soil development, regulating services such as pest control and climate regulation and cultural services such as the use of the grassland for recreation. A grassland is also a complex ecosystem containing many species belonging to different levels in the food chain, so called "trophic levels".Study: Meadow full of flowers benefit mankind

Humans are causing declines in biodiversity for many of these groups and evidence from experiments on plants suggests this might threaten ecosystem services. However, studies had not looked at diversity at many trophic levels at the same time.

A 60-strong research team, led by Dr. Santiago Soliveres from the University of Bern, therefore studied all groups in a grassland food chain for the first time. They collected data on a total of 4600 species of animal and plant from nine trophic groups, including often neglected ones such as micro-organisms in the soil and insects that live in the soil or on the plants. "The data was collected as part of a programme supported by the Deutsche Forschungsgemeinschaft in 150 grasslands across Germany, the so called 'Biodiversity Exploratories'", says Professor Wolfgang Weisser of the Chair for Terrestrial Ecology at the Technical University of Munich (TUM) - "it constitutes the most extensive ecological sampling in Europe."

[caption id="attachment_2410693" align="alignleft" width="150"]<img class="size-thumbnail wp-image-2410693" src="http://cff1.greenatom.earth/uploads/2016/08/17135013/cff1.greenatom.earthuploads20160817135012media.eurekalert.orgmultimedia_prodpubweb122073_web-068b81c384ef161d31636e90882885eb763237d4-60cd34d80bee67f439da6cbaae34562fadad43d9-150x150.jpg" alt="Meadow clary (Salvia pratense)" width="150" height="150" /> Meadow clary (Salvia pratense)[/caption]

Biodiversity required within all trophic groups

"Working out how different groups affect ecosystem services is like trying to solve a very complicated puzzle but with our extensive data we are able to put together a coherent picture of how important individual groups are for fourteen ecosystem services. Each ecosystem service is dependent on at least three groups and the higher the number of species within the group, the more reliably the ecosystem service is provided. In addition, each individual group influences at least one ecosystem service," Soliveres, lead author for the study, summarises the results.

Dr. Eric Allan from the University of Bern adds: "Many different groups are important for providing essential ecosystem services. In order for nature to continue 'working' reliably for us we therefore need to protect biodiversity at all levels in the food chain, including in often overlooked groups such as microbes or insects. This is especially important for regulating processes and cultural services."

The importance of overlooked organisms

Microbes and insects are overlooked and are not generally considered in conservation. However, this study shows that view needs to change because many insects and soil organisms play a central role, alongside plants, in supplying the services we depend on. "Plants supply biomass which forms the beginning of the food chain, but insects act as pollinators and soil organisms increase soil fertility through the breakdown and retention of chemical elements such as phosphorus. The more different species there are, particularly within these three groups, the more positive the effect on all services," explains Soliveres.

Often, fertiliser is applied to the soil in order to increase soil fertility and thus increase plant growth. Fertilisers help in the short term, but if biodiversity is reduced, then the downsides outweigh this. Maintaining high levels of biodiversity throughout the food chain is therefore more economical and wiser in the long term than destroying it for short term gains.

The importance of biological diversity for ecosystem services has been underestimated

"If biodiversity is rapidly destroyed, what consequences does this have for humans? What courses of action are available? Thus far, there has been insufficient research into this, which is one of the reasons why the international biodiversity council IPBES was founded," explains Prof. Markus Fischer from the Institute of Plant Science at the University of Bern and head of the Biodiversity Exploratories project. This study also shows that the importance of biological diversity has been underestimated because previous research only focussed on individual trophic groups: "Our extensive research programme demonstrates how important it is to study the broader context and that there is a need for action to protect ecosystems," summarises Fischer.


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Study: Meadow full of flowers benefit mankind

Study: Meadow full of flowers benefit mankind The more it...

Feds: July 2016 was the hottest month on record. More federal scientists have confirmed we just sweated through <a href="http://www.earth.com/news/ocean-tides-earthquakes/">Earth's</a> hottest month on record.
The National Oceanic and Atmospheric Administration calculates that last month's average global temperature was 62.01 degrees (16.67 degrees Celsius). That beats the old record set in July 2015 by a ninth of a degree and is 1.57 degrees above the 20th-century average. July 2016 is Earth's hottest month.
It's the 15th consecutive global heat record. Records go back to 1880. Also Feds: July 2016 was the hottest month on record causing excessive record heat.
January through July is also beating out 2015 for hottest year-to-date by .34 degrees (.19 Celsius).
<a href="https://en.wikipedia.org/wiki/NASA">NASA</a> and Japan's weather office earlier proclaimed July 2016 the hottest on record. The British meteorological office hasn't calculated the number yet. A University of Alabama Huntsville team that uses satellites, not ground measurements, says it was the second warmest. Also making everyone question the global warming that has recently been shown to have changed a lot over the years as proven.
© 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Learn more about ourPrivacy Policy and Terms of Use.

Feds: July 2016 was the hottest month on record

Feds: July 2016 was the hottest month on record. More...

Clouds of reef fish and corals, French frigate shoals, NWHI

Debate rages over Papahanaumokuakea Marine National Monument.As a Native Hawaiian living in modern Hawaii, one of the times Shad Kane truly felt connected to his ancestors was when he traveled to a remote, 140,000-square-mile area of the Pacific where islands, atolls, islets and coral reefs make up a federally protected marine monument.
There, at Midway Atoll, he plucked feathers from dead birds to make kahili - feathers mounted on a long wooden pole that was used to announce the presence of ancient Hawaiian chiefs and became a royal symbol during the Hawaiian monarchy.Debate rages over Papahanaumokuakea Marine National Monument
"Going to Midway and being a part of gathering traditional birds in the manner they did is extremely spiritual," the suburban Honolulu man said this month. "It becomes much more personal for me."
He said seeing Midway strewn with remnants of fishing nets, buoys and hooks helped him realize the surrounding area needs protection, too.
This year, a group of Native Hawaiian leaders urged President Barack Obama to expand Papahanaumokuakea Marine National Monument, while keeping the main Hawaiian islands outside the boundaries. The move would make the monument about 582,000 square miles, more than twice the size of Texas.
The White House isn't indicating when a decision will be made. Obama also has been asked to designate new national monuments in Utah, <a href="https://en.wikipedia.org/wiki/Arizona">Arizona</a>, <a href="http://www.earth.com/news/sierra-nevada-mountains-taller/">Nevada</a>, Maine and elsewhere.
The effort to expand the Pacific monument has supporters and opponents invoking Hawaiian culture to further their agendas. Some believe expansion of one of the world's largest marine conservation areas will protect a sacred place, while others say making more waters off-limits will harm fishermen for a cause pushed by environmentalists with deep pockets.
A presidential proclamation established the monument in 2006. Only scientific research and cultural activities are allowed, with commercial fishing and recreational activities such as diving banned.
Getting there requires taking a flight to Midway Atoll or a sailboat. Under ideal ocean conditions, it takes about two days to sail from Kauai to Nihoa, the closest island to the main Hawaiian islands.
Some who say the area needs to be open for commercial fishing rely on an argument that's "completely contrary to the generation that preceded them that actually did go fish and understood the harmful effects" of overharvesting, said William Aila, deputy director of the Department of Hawaiian Home Lands.
Peter Apo opposes adding the massive area to the monument and said doing so contradicts the way ancient Hawaiians managed natural resources.
Apo is a trustee of the Office of Hawaiian Affairs, which supports expansion as long as the agency gets an official say in management of the area, including advocating for Native Hawaiian access.
It's difficult to be a Native Hawaiian and an expansion opponent, Apo said.
"We look like we're bad guys. We're opposing what seems to be addressing a global problem," he said of issues like climate change and overfishing that supporters point to.
He cited how Hawaiians utilized periods of kapu, or temporary restrictions in response to overharvesting.
"Food security was critical to Hawaiians," Apo said.
It's difficult to estimate the financial effect that expansion would have on the $100 million per year longline industry, which supplies a large portion of the fresh tuna and other fish consumed in Hawaii, said Sean Martin, president of the Hawaii Longline Association.
He estimated about 2 million pounds of fish annually come from the proposed expansion area, where vessels string lines ranging from a mile to 50 miles long in the ocean to catch fish.
G. Umi Kai, who uses his spare time to craft traditional implements such as wooden weapons and fish hooks made of bone, experienced the tranquility, isolation and fragility of the area when he visited last year.
He fished off rocky shores of two islands in the monument to see if his traditional bone hooks really worked. It was an ideal place for the test, he said, "because the environment was closer to the way Hawaii was 100 years ago."
Aila, of the home lands department, said he hopes the issue will draw Obama to an international environmental conservation gathering scheduled for next month in Honolulu.
By expanding the monument, Aila said the president could build a legacy as well as commit the U.S. to fighting environmental problems such as climate change and coral bleaching, which occurs when warm waters lead coral to expel the algae they rely on for food.
Opponents hope the president sees how divisive the issue is.
"I'm not sure that Obama, who was born, raised here, wants to leave a legacy of a divided Hawaii," Apo 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.

Debate rages over Papahanaumokuakea Marine National Monument

Debate rages over Papahanaumokuakea Marine National Monument.As a Native Hawaiian...

<div>
<div class="img-wrapper">The Blue Cut Fire in California is growing quickly. The Blue Cut Fire, just outside of Los Angeles, is a quickly growing fire that is currently an imminent threat to public safety, rail traffic and structures in the Cajon Pass, Lytle Creek, Wrightwood, Oak Hills, and surrounding areas. An estimated 34,500 homes and 82,640 people are being affected by the evacuation warnings that have been issued. This wildfire started on August 16, 2016 and the cause is unknown. In the last two days the fire has grown to 31,689 acres with 1584 personnel on scene. 178 engines, 26 crews, 10 air tankers, 2 Very Large Air Tankers (<a href="https://en.wikipedia.org/wiki/NASA">VLATS</a>), and 17 Helicopters, including night flying helicopters. Additional firefighters and equipment have been ordered and will be responding directly to the fire. An unknown number of structures are damaged and destroyed. A smoke advisory has been issued for portions of <a href="http://www.earth.com/image/fire-and-smoke-in-san-bernardino-national-forest/">San Bernardino</a> Country.</div>
Unfortunately extreme weather is continuing in the area with hot, dry and breezy (20 mph with gusts to 30 mph) conditions. Very poor relative humidity will continue. All of these will hinder fire fighting efforts and may increase fire spread. The Blue Cut Fire in California is growing quickly

NASA's Suomi NPP satellite collected this natural-color image using the VIIRS (Visible Infrared Imaging Radiometer Suite) instrument on August 17, 2016. Actively burning areas, detected by thermal bands, are outlined in red. NASA image courtesy Jeff Schmaltz LANCE/EOSDIS MODIS Rapid Response Team, GSFC. Caption by Lynn Jenner with information from Inciweb.

Suomi NPP is managed by NASA, NOAA and the U.S. Department of Defense.


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The Blue Cut Fire in California is growing quickly

The Blue Cut Fire in California is growing quickly. The...

Scientists are transforming chocolate into a functional food by infusing it with probiotics and prebiotics, aiming to create a treat that satisfies cravings while supporting gut health. 



The challenge lies in maintaining chocolate's beloved texture and flavor while adding health benefits.



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Probiotics - beneficial microbes that balance gut bacteria and aid digestion - are typically fragile and can be destroyed by stomach acid or processing. 



Prebiotics act as food for these microbes, helping them thrive. Together, they form "synbiotics," a powerful health combination.



Researchers Smriti Gaur and Shubhi Singh from India's Jaypee Institute of Information Technology took an innovative approach, using natural prebiotics like corn and honey instead of complex processing methods. 



They created five chocolate varieties: a control and four synbiotic versions containing different combinations of prebiotics, probiotics (Lactobacillus strains), and flavor enhancers (cinnamon or orange).



Laboratory simulations of human digestion showed the probiotics remained viable for over five hours, suggesting they could survive long enough to benefit gut health.



Taste tests were positive, with researchers particularly enjoying the orange-flavored variety, describing it as having "vibrant citrus notes" complementing the "rich cocoa" with a "luxurious" texture.



This research represents just the beginning. With further refinement of strains, textures, and flavors, chocolate could evolve beyond mere indulgence to become a functional food that nourishes while it delights.



The study is published in the journal <a href="https://pubs.acs.org/doi/10.1021/acsfoodscitech.4c00741" target="_blank" rel="noreferrer noopener">ACS Food Science &amp; Technology</a>.

Is chocolate the next nutritional powerhouse?

Scientists are transforming chocolate into a functional food by infusing...

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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



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.

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 



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.

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



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

Wetlands are a major source of methane emissions

[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



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

The rapid retreat of the Columbia Glacier

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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



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.

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



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

Satellites reveal how Earth's systems are interconnected

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

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



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



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



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



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



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



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



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.

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



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.

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



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.

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

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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



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.

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



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.

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



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.

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



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.

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



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.

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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