Will Your City Run Dry

WILL YOUR CITY RUN America's Water Risk. Columbia University researchers have developed a metric called the Normalized Deficit Index (NDC) to reveal areas facing the greatest risk for multi-year droughts. DRY? The NDC is determined by factors like water demand, precipitation totals, water use and variations in water supply. Here are the findings. 60 Years of Daily Precipitation Demand Usage Patterns AREAS AT RISK Variations of Supply This map illustrates the areas facing the highest potential shortage, using only local water resources to maot their current water use. It draws from 60 years of data on water supplies and use. Red a the highest risk; dark green is lowest. Since 1950 99% 127% 50% 43% INCREASE INCREASE US. population INCREASE INCREASE Agricultur weter une Total water withdrwaals Publie water withdrwwa DECREASING THE RISK YOU. INDUSTRY. Pay close attention to climate risk. Use dimate- information forecasta to predict risks up to six months ahead. Invest in technologias to improve Purchase rain barrels to store water. Turn off faucets when not in use. Ask your city council to use recycled water for irrigation. water conservation. GrowingBlue O00 Water. Economics. Life. www.growingblee.com Soun: Columbia Waier Cencer Aquanata. Veota Vate Wwww.