A record hot summer has laid bare a stark new reality for many states on America’s West Coast: Amid rising temperatures and worsening droughts, many will need to systematically rethink the way they manage limited water supplies.

“One of the problems with rising temperatures is how it’s going to affect water management,” said Washington state’s official climatologist, Nicholas Bond. “Simply from an agricultural point of view, generally when it is warmer, the demands of crops for water goes up. At higher temperatures, crops need more to be able to thrive.”