arctic

Arctic permafrost might contain ‘sleeping giant’ of world’s carbon emissions

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Image credit - Prof. Igor Semiletov.

As temperatures rise in the Arctic, permafrost, or frozen ground, is thawing. As it does, greenhouse gases trapped within it are being released into the atmosphere in the form of carbon dioxide and methane, leading to previously underestimated problems with ocean acidification and potential mercury poisoning. About one quarter of the region is covered in permafrost, which … Read more

What keeps Arctic scientists awake at night?

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From the lack of methane sinks to the high suicide rates of indigenous populations, Arctic researchers are studying a range of issues.

By Annette Ekin In a year when Arctic warming rose to global prominence after temperatures hit a sweltering 32˚C inside the Arctic Circle, what are some of the specific issues that keep Arctic scientists awake at night? Horizon caught up with eight experts in Reykjavik, Iceland, at the 6th edition of the Arctic Circle assembly, … Read more