Each day, it seems, a new climate-related catastrophe makes headlines. Salmon are dying in California, because the water they inhabit has been heated to the point that it’s inhospitable to life. The Hoover Dam reservoir is at record-low levels, potentially affecting the water supply to the West Coast. And California is, once again, in a drought. States and municipalities across the country are asking residents to conserve water as the precious resource is threatened with impending scarcity. … We asked experts for some easy ways to cut back on water usage. Here are their suggestions.