"Russian scientists believe they have discovered new life forms sealed off for millions of years in a subglacial lake deep under the Antarctic ice, the RIA news agency reported on Thursday."

"WASHINGTON — After a series of costly and embarrassing accidents in its efforts to drill exploratory wells off the north coast of Alaska last year, Royal Dutch Shell announced on Wednesday that it would not return to the Arctic in 2013."

"A thaw of sea ice floating on the Arctic Ocean last year sent extra plant food to exotic creatures on the deep sea floor in a shift that might leave polar bears hungry at the surface, scientists said on Thursday."

"HOUSTON -- In another blow to its Alaskan Arctic drilling program, Royal Dutch Shell said on Monday that it had decided to tow its two drill vessels there to Asian ports for major repairs, jeopardizing its plans to begin drilling for oil in the icy northern seas next summer."

"For the first time, scientists report, they have found bacteria living in the cold and dark deep under the Antarctic ice, a discovery that might advance knowledge of how life could survive on other planets or moons and that offers the first glimpse of a vast ecosystem of microscopic life in underground lakes in Antarctica."

"OSLO -- Plans by Arctic nations to start cooperating over oil spills are vague and fail to define corporate liability for any accidents in an icy region opening up to oil and gas exploration due to global warming, environmentalists said on Monday."

"WASHINGTON -- Critics want a halt to offshore Arctic drilling in the wake of Shell's latest mishap in the waters off Alaska but there's no sign the Obama administration and key members of Congress are backing off their support for drilling in the sensitive region."

"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."

"Inuit people call for Canadian government to send icebreaker to free pod of mammals that are struggling to surface for air."

"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":

"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."

"A Shell Oil drilling rig that ran aground in the Gulf of Alaska has incurred water damage to its deck and electrical systems but is otherwise stable, officials with the response team handling the accident said Thursday."

"The U.S. Coast Guard and Royal Dutch Shell were fighting 70 mile-per-hour winds and 40-foot swells as they tried to assess damage to a floating oil drilling ship that ran aground on a remote Alaskan island."

"Ferrying a load of soybeans from Seattle to China in 2004, the engine of Malaysian freighter Selendang Ayu lost power and the vessel broke in half on rocks off Unalaska Island in the middle of the Alaskan archipelago."