Search results for arctic


11 Votes Vote

Tracking the breakup of Arctic summer sea ice

Posted by External 7 days ago General
http://feeds.sciencedaily.com — An international team has placed sensors on and under Arctic sea ice to monitor this season's retreat. Scientists hope to understand the physics of the ice edge in order to predict summer conditions in the Arctic Ocean. Read More
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12 Votes Vote

Arctic sea ice trends confirmed by Whalers' logs

Posted by External 10 days ago General
http://www.enn.com — Log books from British whaling ships more than 200 years ago have given new insights into the history of the Arctic sea ice, reports Tim Radford. A new study reveals that the scale of ice melt in the Arctic over the last few decades is new and unprecedented. The retreat of the ice in the last 30 years is part of a more recent and new pattern of climate change. Read More
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Shark teeth analysis provides detailed new look at Arctic climate change

Posted by External 10 days ago General
http://feeds.sciencedaily.com — A new study shows that some shark species may be able to cope with the rising salinity of Arctic waters that may come with rising temperatures. The Arctic is of special interest today because it is increasing in temperature at twice the global rate. According to researchers, past climate change in the Arctic can serve as a proxy to better understand our current climate change and aid future predi Read More
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10 Votes Vote

Polar bears from space: Satellite imagery a promising tool to monitor arctic polar bears

Posted by External 13 days ago General
http://feeds.sciencedaily.com — The potentially severe impacts of climate change in the Arctic may threaten regional wildlife. Scientists trying to develop efficient and effective wildlife monitoring techniques to track Arctic populations face great challenges, including the remoteness and associated logistical constraints of accessing wildlife. Polar bear population estimates based on satellite images are similar to aerial est Read More
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9 Votes Vote

Whaling logbooks could hold key to retreating Arctic ice fronts

Posted by External 22 days ago General
http://feeds.sciencedaily.com — Ice fronts from the early 19th century were far more advanced around the Arctic than they are today, researchers analysing whalers’ log books from this time have discovered. Read More
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5 Votes Vote

Ancient Arctic sharks tolerated brackish water 50 million years ago

Posted by External 22 days ago General
http://feeds.sciencedaily.com — Sharks were a tolerant bunch some 50 million years ago, cruising an Arctic Ocean that contained about the same percentage of freshwater as Louisiana's Lake Ponchatrain does today, says a new study. The study indicates the Eocene Arctic sand tiger shark, a member of the lamniform group of sharks that includes today's great white, thresher and mako sharks, was thriving in the brackish water of the Read More
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Earlier snowmelt prompting earlier breeding of Arctic birds

Posted by External 28 days ago General
http://feeds.sciencedaily.com — Biologists have found that migratory birds that breed in Arctic Alaska are initiating nests earlier in the spring, and that snowmelt occurring earlier in the season is a big reason why. Read More
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Arctic warming linked to fewer European and U.S. cold weather extremes, new study shows

Posted by External 37 days ago General
http://feeds.sciencedaily.com — Climate change is unlikely to lead to more days of extreme cold, similar to those that gripped the United States in a deep freeze last winter, new research has shown. The Arctic amplification phenomenon refers to the faster rate of warming in the Arctic compared to places further south. It is this phenomenon that has been linked to a spike in the number of severe cold spells experienced in recent Read More
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