arctic

Coal Dust Darkens the Climate Picture

As coal mining is likely to become less regulated under President Trump, scientists are looking for ways to better measure the impact of the resulting coal dust on the climate. Near one mine in the Arctic, researchers found coal dust reduced snow’s reflectivity by up to 84 percent, contributing to warming.

Flying In, Flying Away

Melting ice means that bird species of the North Atlantic and North Pacific — separated for millennia by a frozen sea too large and bereft of food to cross — now have a passage between oceans. Their migrations suggest unprecedented shifts in the native ecosystem of the Chukchi Sea, and the globe.

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