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Courtney Delong, a college student studying meteorology works with... News PhotoAir Pollution,Air Vehicle,Denver,Horizontal,Month,Pollution,Science and Technology,Scientist,Student,USAPhotographer Collection: Denver Post Copyright - 2014 The Denver Post, MediaNews Group.DENVER, CO - JULY 11: Courtney Delong, a college student studying meteorology works with other students and scientist during a month long study on air pollution using satellites, aircraft, and a balloon, July 14, 2014. The scientist and their equipment are set up on mesa above NREL in Golden. (Photo by RJ Sangosti/The Denver Post via Getty Images)