Tuesday, September 01, 2009

Cloud seeding

When Southern Nevada Water Authority General Manager Pat Mulroy suggested the agency fund a shuttering Desert Research Institute cloud seeding program, it turned more than a few heads. The project is vital to a stable water supply in Northern Nevada, but what does it have to do with Southern Nevada? The authority has been involved in the institute’s cloud-seeding program for years — but not in Nevada. It has paid the research institute $121,000 over the past three years to conduct cloud-seeding research and spur precipitation in the mountains between Denver and Grand Junction, Colo. The bill went to the authority’s Enterprise Fund, which gets most of its money from wholesale delivery charges to municipal water agencies. Because 90 percent of Las Vegas’ drinking water comes from the Colorado River, and because snowmelt from the upper basin has dropped amid the drought, paying for cloud seeding there made sense. In that case, the authority was effectively trying to create its own water. Desert Research Institute has 23 cloud-seeding stations in Nevada and six in the Sierra Nevada range along the California-Nevada border. They create about 65,000 acre-feet of precipitation each year in Nevada, mostly in the form of snow, according to institute data...LasVegasSun

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