"NORTH POLE, Alaska — In Krystal Francesco's neighborhood, known here as the 'rectangle of death,' the air pollution recently was so thick she could hardly see across the street. Wood stoves were cranking all over town — it was 40 below zero — and she had to take her daughter to the emergency room."

"The Fish and Wildlife Service has recommended against a proposed land exchange that would allow a 20-mile road through the heart of Alaska's pristine Izembek National Wildlife Refuge, pleasing environmentalists who bitterly opposed it but angering state leaders who say the road is a public safety priority for nearby residents."

"Superstorm Sandy was a dramatic preview of what cities on the Eastern Seaboard might expect as climate change intensifies, but 12 small, indigenous communities on Alaska's coast provide the most extreme example of how global warming can wreak havoc."

"ANCHORAGE -- North America's largest living land mammals could roam the Alaska wilderness again by 2014, a century after they vanished in the state, under an agreement announced on Thursday to reintroduce wood bison to the lower Yukon River area."

"HOUSTON -- Royal Dutch Shell’s Arctic drilling program is now officially in jeopardy and its prospects will depend on the findings of two continuing federal inquiries. One review is on the grounding of the Kulluk drill ship on New Year’s Eve after it was set adrift for five days in stormy weather, and the other is on the safety management of the entire Shell program."

"Lifeboats from an oil rig that was temporarily grounded on a small island in southern Alaska may have leaked as much as 272 gallons of diesel fuel into pristine waters along the shoreline, but that cannot be determined until a full inspection is completed, U.S. Coast Guard officials said."

"ANCHORAGE -- As response teams continued Tuesday to evaluate Royal Dutch Shell's once-grounded oil drilling rig, the Coast Guard, the Obama administration and U.S. Sen. Mark Begich all announced investigations or reviews taking a close look at Shell":

"Tug boats tow 28-tonne Kulluk to nearby Kiliuda Bay where the damage can be assessed after grounding on Alaskan coast."

"ANCHORAGE, Alaska -- Efforts to pull the Shell drilling rig Kulluk from its near-shore perch on rocks and gravel moved ahead mainly in secret Saturday, though officials disclosed Alaska has approved a tow plan to a temporary destination in nearby safe waters and that towing could be attempted at any time."

"Companies will not be able to keep trade secrets for hydraulic fracturing ingredients if a proposed Alaska rule is adopted."