Search results for arctic

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Arctic gives clues on worst mass extinction of life

Posted by External 1 day 6 hours ago General
https://www.sciencedaily.com — Extreme global warming 252 million years ago caused a severe mass extinction of life on Earth. It took life up to 9 million years to recover. New study finds clues in the Arctic as to why this recovery took so long. Read More
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Study measures methane release from Arctic permafrost

Posted by External 3 days ago General
http://www.enn.com — A University of Alaska Fairbanks-led research project has provided the first modern evidence of a landscape-level permafrost carbon feedback, in which thawing permafrost releases ancient carbon as climate-warming greenhouse gases.The study was published today in the journal Nature Geoscience.The project, led by UAF researcher Katey Walter Anthony, studied lakes in Alaska, Canada, Sweden and Sibe Read More
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Specialized life forms abound at Arctic methane seeps

Posted by External 14 days ago General
https://www.sciencedaily.com — Methane seeps have strong effects on the community structure at the bottom of the Arctic Ocean. Read More
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New genome reveals how Arctic microbes survive in cold extreme habitats

Posted by External 22 days ago General
https://www.sciencedaily.com — Scientists have revealed how a tiny Arctic microbe, crucial to shaping the surface of glaciers, survives in such extreme conditions. Read More
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Researchers work to understand causes of search and rescue in the Arctic

Posted by External 22 days ago General
https://www.sciencedaily.com — Search and rescue operations in Nunavut have more than doubled over the past decade. In the communities of the vast northern Canadian territory, it's commonly felt that climate change is one factor making hunting riskier in the spring and fall. A new study shows a strong link between environmental conditions and search and rescues cases across Nunavut, moving scientists closer to understanding th Read More
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Changing Arctic Tundra Could Radically Alter Shorebird Breeding Grounds

Posted by External 27 days ago General
http://www.enn.com — A new study projects that global warming could dramatically affect the tundra breeding habitat of 24 shorebird species, with 66 percent to 83 percent losing most of their suitable nesting territories. Researchers modeled breeding conditions for these migratory shorebird species — some of which travel more than 10,000 miles from Antarctica or southern South America to breed in the Arctic — and Read More
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Ice algae: The engine of life in the central Arctic Ocean

Posted by External 44 days ago General
https://www.sciencedaily.com — Algae that live in and under the sea ice play a much greater role for the Arctic food web than previously assumed. In a new study, biologists show that not only animals that live directly under the ice thrive on carbon produced by so-called ice algae. Read More
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Vegetation in Russian Arctic has memory

Posted by External 59 days ago General
https://www.sciencedaily.com — Adaptation to climate change has a lag of several thousands of years, report researchers. The permafrost regions in the Arctic are among those areas of the world in which the temperature is rising particularly fast due to climate change. However, biologists are currently observing that the tree vegetation is only minimally adapting to these changes. In those areas where pine and spruce trees shou Read More
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Tallest Mountain in US Arctic Found Using New Technique

Posted by External 63 days ago General
http://feedproxy.google.com — New mapping technique settles 50-year debate over the U.S. Arctic's highest peak. Read More
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Cosmopolitan snow algae accelerate the melting of Arctic glaciers

Posted by External 63 days ago General
https://www.sciencedaily.com — The role of red pigmented snow algae in melting Arctic glaciers has been strongly underestimated, suggests a study. The new work shows a 13 percent reduction of the albedo over the course of one melting season caused by red-pigmented snow algal blooms. Read More
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New technique settles old debate on highest peaks in US Arctic

Posted by External 63 days ago General
https://www.sciencedaily.com — Finding out which is the highest mountain in the US Arctic may be the last thing on your mind, unless you are an explorer who skis from the tallest peaks around the globe. A ski mountaineer and a glaciologist aimed to settle a debate of more than 50 years, while testing a new, affordable mapping technique in a steep mountainous region. Read More
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