The Kulluk is nearly ready for Arctic oil exploration off Alaska's north coast. The orange life rafts carried on the rig are sealed to protect against fire and oil. Each unit carries up to 60 people and can motor away from the rig to safety. Shell now is waiting for one final federal permit and favorable ice conditions to set up in the Beaufort and Chukchi with drilling equipment, support vessels and aircraft. (Mike Siegel/Seattle Times/MCT)
Read the article: Oil exploration in Alaskan Arctic brings lots of noise to whales’ domain
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