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6
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2answers
314 views

What is the relevance of Arctic coastal erosion to the Earth's climate?

Due to global warming and Arctic amplification, Northern Hemispheric permafrost is thawing and becoming a source of carbon and many greenhouse gases, which then positively feedback to global warming ...
7
votes
1answer
66 views

How much of arctic ice is from snow fall versus frozen sea water?

How much of arctic ice is from snow fall versus frozen sea water? I presume arctic ice comes from both sources. Is there a way to tell how the ice was formed? In other words, if you made a core ...