A dense 380-million-year-old forest found in Norway could have caused one of the Earth's most extreme climate shifts. Continue reading →
Despite some optimistic claims, the future for some polar bear populations continues to look grim.
Shell said Monday it was halting its search for oil off the Alaskan coast, with environmentalists claiming a victory.
The world's northernmost dinosaur has just been found in Alaska, where the dino likely experienced snow and months without sunshine.
Two photographers who took shocking images of emaciated polar bears talk about their experiences and what the images might mean.
While there have always been good and bad years for polar bears, scientists expect that there will be more bad years as the Arctic warms.
The rapid melting of polar ice has sent activity in the inhospitable region into overdrive as nations eye newly viable gas, deposits and shipping routes.
Shell has been given final permission for an exploratory drilling project in Alaskan waters
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