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LAS VEGAS - AUGUST 19: Director for Climate Change and Energy for Google.org Dan Reicher speaks during the National Clean Energy Summit at the Cox Pavilion at UNLV August 19, 2008 in Las Vegas, Nevada. Reicher announced that Google will invest more than USD 10 million in breakthrough geothermal energy technology. Political and economic leaders are attending the two-day summit to discuss alternative energy options for the country's future. (Photo by Ethan Miller/Getty Images)