OSLO (Reuters) - Companies seeking oil in the Arctic will need better technology to clean up spills onto ice and could new face hazards such as rougher seas caused by climate change, experts said on Friday. The U.S. Geological Survey estimated this week that 22 percent of the world's undiscovered, technically recoverable reserves of oil and gas were in the Arctic, raising environmentalists' worries about possible impact on wildlife. "The Exxon Valdez showed what a catastrophe can be caused by oil in the Arctic," said Ilan Kelman, a scientist at the Centre for International Climate and Environmental Research in Oslo. "The environment is remote, harsh and vulnerable." The Exxon Valdez tanker ran aground off Alaska in 1989, spilling 11 million U.S. gallons of oil off Alaska and killing thousands of birds and marine mammals....
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