If you're looking for a smog-free venue, one of the last places left might be the Chukchi and Beaufort seas, the remote stretch of frigid water between Russia and Canada at the top of the planet.
To help open the door to offshore oil and gas exploration in the Arctic, though, the Environmental Protection Agency on Monday issued a final air quality permit that will allow Shell Oil's Noble Discoverer drill ship and the rest of Shell's drilling fleet to emit more than 250 tons of pollutants a year into the Arctic air while looking for oil. http://latimesblogs.latimes.com/nationnow/2011/09/arctic-oil-shell-epa-air-permit-chukchi.html
Article courtesy of The Los Angeles Times -Nation Now by Kim Murphy in Seattle