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The Arctic Has a Cloud Problem


The Atlantic
Tiny iodine particles are clumping together to trap sunlight and melt polar sea ice.
Christian Vorhofer/ imageBROKER / Alamy
To climate scientists, clouds are powerful, pillowy paradoxes. They can reflect away the sun’s heat but also trap it in the atmosphere; they can be products of warming temperatures but can also amplify their effects. Now, while studying the atmospheric chemistry that produces clouds, researchers have uncovered an unexpectedly potent natural process that seeds their growth. And as the Earth continues to warm from rising levels of greenhouse gases, this process could be a major new mechanism for accelerating the loss of sea ice at the poles one that no global climate model currently incorporates. ....

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Community Scoop » A Polar Law Approach To Climate Change?


Press Release – University of Canterbury
Who is legally responsible for protecting our ice caps? Could a Polar approach to climate change strengthen political and legal responses to climate change and other human activities in both the Arctic and Antarctic regions? University of Canterbury …
Who is legally responsible for protecting our ice caps? Could a
Polar approach to climate change strengthen political and legal responses to climate change and other human activities in both the Arctic and Antarctic regions?
University of Canterbury (UC) Law Professor Karen Scott and Professor David VanderZwaag (Dalhousie University, Canada), editors of the
Polar Law Research Handbook explore these and other questions of law and policy relating to the Antarctic and Arctic in their new book, published in December 2020. ....

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Can polar bears and narwhals cling on as the ice shrinks?


Mammals in the Polar Regions face an uncertain future as unprecedented warming drives catastrophic sea ice loss, driving polar bears onto land, after losing access to sea ice and the highly calorific seals upon which they feed, forcing the animals to depend on lower calorie diets. The scientists say, A polar bear would need to consume approximately 1.5 caribou, 37 Arctic char, 74 snow geese, 216 snow goose eggs (i.e.54 nests with 4 eggs per clutch) or 3 million crowberries to equal the digestible energy available in the blubber of one adult ringed seal . They add, Few resources exist on land within the polar bears range that could compensate for declines in seal feeding opportunities . ....

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