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Archive for October 3rd, 2014
Invading Bullfrogs March Down the Yellowstone River
Posted by Nature World: Brian Stallard on October 3rd, 2014
Nature World: Bullfrogs are bullying their way up the Yellow Stone River, invading the floodplains of Montana, according to a new study. And experts are saying that this may be one of the hardest invasions to fight. In most of the country, and even the world, amphibians are on the decline. Favoring wet marshlands, elevating temperatures and intense drought conditions are eliminating areas where these delicate creatures can mate and raise their offspring. However, the American bullfrog is one amphibian who didn't...
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While the Arctic is melting, the Gulf Stream remains
Posted by Environmental News Network: The Bjerknes Centre For Climate Research on October 3rd, 2014
Environmental News Network: A new study published Sunday in Nature Geoscience documents that the source of fresher Nordic Seas since 1950 is rooted in the saline Atlantic as opposed to Arctic freshwater that is the common inference. This is an important finding as it shows that the Gulf Stream is not about to short circuit. A halting Gulf Stream has been a concern with ongoing climate change; its collapse was taken to the extreme in the Hollywood blockbuster "The Day After Tomorrow", says Tor Eldevik, professor in oceanography...
Monsoon Rains Decline as Humans Pollute the Atmosphere
Posted by Environment News Service: None Given on October 3rd, 2014
Environment News Service: Emissions produced by human activities have caused annual monsoon rainfall to decline over the past 50 years, new research has found.
In the second half of the 20th century, the levels of rain recorded during the Northern Hemisphere`s summer monsoon fell by as much as 10 percent, according to researchers at the University of Edinburgh.
The scientists determined that emissions of tiny particles from human activities, known as anthropogenic aerosols, were the cause.
Levels of aerosol emissions...
NASA Satellite Images Reveal Shocking Groundwater Loss in Drought-Stricken California
Posted by EcoWatch: None Given on October 3rd, 2014
EcoWatch: NASA`s Gravity Recovery and Climate Experiment (GRACE) program has released a series of satellite images, taken in June 2002, June 2008 and June of this year, showing the stunning groundwater loss in California which is in its third year of record drought.
"This trio of images depicts satellite observations of declining water storage in California as seen by NASA`s Gravity Recovery and Climate Experiment satellites," says NASA. "Colors progressing from green to orange to red represent greater...
Concerned scientists say climate warming killing forests in the Rockies
Posted by PBS: None Given on October 3rd, 2014
PBS: Rocky Mountain forests as we know them are in great peril, according to a new report from the Union of Concerned Scientists and the Rocky Mountain Climate Organization, with many having already been substantially damaged by the triple threat of beetle kill, wildfire and heat-related drought.
The report presents new evidence that human-caused climate warming is driving those components of forest destruction.
The National Climate Assessment published earlier this year included similar material,...
Researchers create more accurate model greenhouse gases from peatlands
Posted by PhyOrg: None Given on October 3rd, 2014
PhyOrg: Scientists at the U.S. Department of Energy's Argonne National Laboratory have created a new model to more accurately describe the greenhouse gases likely to be released from Arctic peatlands as they warm. Their findings, based on modeling how oxygen filters through soil, suggest that previous models probably underestimated methane emissions and overrepresented carbon dioxide emissions from these regions.
Peatlands, common in the Arctic, are wetlands filled with dead and decaying organic matter....