Making energy requires an enormous amount of water. And climate change is going to put even more pressure on dwindling water sources in Colorado. Power plants work harder when it’s hot. Think about how many more air conditioners are running during a heat wave. A new report from the University of Colorado Boulder looks at how the state can meet energy demands using less water. Lesley McClurg talks to Kristen Averyt, director of the Western Water Assessment. Averyt was the lead scientist on the  study.