LAS VEGAS, NV - AUGUST 13: Acting Administrator of the National Oceanic and Atmospheric Administration Dathryn Sullivan (L) and General Manager of the Southern Nevada Water Authority Patricia Mulroy ... more 
LAS VEGAS, NV - AUGUST 13: Acting Administrator of the National Oceanic and Atmospheric Administration Dathryn Sullivan (L) and General Manager of the Southern Nevada Water Authority Patricia Mulroy participate in a panel discussion during the National Clean Energy Summit 6.0 at the Mandalay Bay Convention Center on August 13, 2013 in Las Vegas, Nevada. (Photo by Isaac Brekken/Getty Images for National Clean Energy Summit 6.0) less 
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Getty Images | Photo By Isaac Brekken / Getty Images for National Clean
Tue, Aug 13, 2013 6:59 PM EDT