Cloud seeding can boost mountain snowpack


In the spring melting snowpack in the rocky mountains feeds the colorado river which supplies drinking water to forty million people across seven states but as the climate warms snowpack is shrinking prompting concerns over water shortages. One technique that can help increase precipitation is called cloud seeding is been used in some areas. Since the nineteen fifties a machine or airplane releases particles such as silver iodide into developing storm clouds. The particles attract molecules of water vapor. And if the conditions are right those droplets for more rain or snow. Mohammed mahmoud is with the central arizona water conservation district which is funded cloud seeding projects in the rocky mountains for years. The type of cloud seeding we're interested in is winter cloud city and what that does is enhance the snowpack so that ultimately in the spring that enhance no pack increase the runoff that water users rely on downstream. The practice remains controversial but researchers have found that cloud seeding can increase the amount of precipitation that falls the storm by up to fifteen percent so it can help reduce the impact of climate change on critical water supplies.

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