"SEATTLE — A Coast Guard investigation into the 2012 grounding of the Kulluk, an offshore drilling rig operated by Royal Dutch Shell in the harsh Arctic, blasted the oil company for legal violations, poor management and taking undue risks, according to the final report released Thursday."

"A federal appeals court sided with the state of Alaska on Wednesday in a ruling that could open a large portion of the Tongass National Forest to road building and logging."

"On March 24, 1989, the tanker Exxon Valdez struck a reef in Prince William Sound, Alaska, spilling 11 million gallons of crude oil into the pristine water. At the time, it was the single biggest spill in U.S. history. In a series of stories, NPR is examining the lasting social and economic impacts of the disaster, as well as the policy, regulation and scientific research that came out of it."

"Mushers at the Iditarod, the annual nearly 1,000-mile sled-dog race across Alaska, are complaining that the unusually warm weather is causing dangerous conditions along the course."

"OLYMPIA, Wash. -- Nearly 25 years after the Exxon Valdez oil spill off the southern coast of Alaska, sea otters in the most affected parts of Prince William Sound have recovered to their pre-spill numbers, a federal report released on Friday showed."

"SEATTLE — Federal environmental regulators, citing risks to water quality and salmon spawning grounds in one of the world’s richest fisheries, moved on Friday to block the development of a giant open-pit copper mine in the watershed of Bristol Bay in southwest Alaska."

Shell CEO Ben van Beurden ruled out drilling in Alaskan offshore waters during 2014 -- as part of a restructuring aimed at restoring falling profits.

"SEATTLE — Eight days after the federal government declared that a proposed mine in Alaska's Bristol Bay would have a devastating effect on the world's largest sockeye salmon fishery, a Washington senator and 250 chefs and food professionals demanded that the Obama administration stop Pebble Mine."

"JUNEAU, Alaska -- A federal appeals court ruled Wednesday that the U.S. Interior Department wrongly awarded offshore oil leases in the Chukchi Sea near Alaska in 2008 without considering the full range of environmental risks posed by drilling in the Arctic."