RUSSIAWith the spotlight shining on the BP oil spill in the Gulf of Mexico, and on the executives sizzling in the hot seat on Capitol Hill, environmental advocates are looking north.

They're worried that Shell Oil will start drilling in the Chukchi Sea off Alaska before the U.S. government reports on BP's Deepwater Horizon drill rig disaster. And the environmental groups are not comforted by Interior Secretary Ken Salazar's reassurances that no new drilling will take place until the government report is completed by May 28.

"The May 28 report deadline still leaves ample time should the Department of the Interior choose to allow this ill-advised drilling to move forward in extreme Arctic conditions, where spill response faces additional challenges of sea ice, seas of up to 20 feet, darkness and a virtual lack of infrastructure from which to stage a response," the environmental groups -- Alaska Wilderness League, Center for Biological Diversity, Defenders of Wildlife, Earthjustice, Sierra Club and The Wilderness Society -- said in a statement.

OIL-RIG/LEAKThe Chukchi Sea is home to polar bears, which are already under pressure due to melting summer sea ice in the Arctic. The big white bears are listed as a U.S. threatened species due to the expected continued effects of climate change in the area.

Shell plans to move into the area around July 1, and get to the places where it wants to drill exploratory wells by July 4 if ice permits. They plan to leave for the year by October 31.