"If Royal Dutch Shell’s Arctic drilling program leads to a major spill, it could cost the oil company — and therefore its shareholders — an entire year’s worth of profit, according to a Tuesday legal filing by the conservation group Oceana and a University of Chicago law clinic."

"IQALUIT, Nunavut -- The eight Arctic Council nations pledged on Friday to do more to combat climate change that is shrinking the vast frigid region, with countries trying to put aside disputes over issues like Russia's intervention in Ukraine."

"John Kerry is heading north. On Friday, the U.S. Secretary of State will travel to the Canadian Arctic city of Iqualuit, Nunavut, where he will take temporary reins of the Arctic Council, a forum that could ultimately determine the fate of the Arctic."

"The Obama administration reaffirmed a 2008 government auction of Arctic drilling rights on Tuesday, delivering a major victory to Shell Oil Co. as it aims to resume exploratory drilling in the Chukchi Sea this summer."

"Royal Dutch Shell will resume drilling off Alaska after suspending operations for two years in the wake of an accident, the special U.S. envoy to the Arctic said on Monday, but gave no details as to when.'

"DECEPTION ISLAND, Antarctica — Earth's past, present and future come together here on the northern peninsula of Antarctica, the wildest, most desolate and mysterious of its continents."

"The Obama administration on Friday proposed standards on exploratory drilling for oil and gas in U.S. Arctic waters that would add costs for energy companies but aim to protect against catastrophic spills."

"The Arctic could become a site of future turmoil, and not just because of the emerging geopolitical tensions and militarization in the region. Beyond concerns of a frozen conflict in the icy north, there is the additional fear that the Barents and Kara Seas could become the location of a slow-motion nuclear disaster. Until 1991 the Soviet Union used the seas as a junkyard where it would dispose of its nuclear waste."

"The United States is sending a heavy icebreaker to help free an Australian fishing boat with 27 people on board that has been stranded since Tuesday in the icy Antarctic seas, the U.S. Coast Guard said on Wednesday."

"Scientists using satellite images and data from NASA's Operation IceBridge have found evidence of a drained and refilled subglacial lake beneath northeastern Greenland's Flade Ice Cap."