Population growth and prolonged droughts from climate change are putting places in the U.S. at risk for water shortages.If you’re in Texas, Colorado, and California, these states allow treated wastewater to be put back in drinkable water systems. Wisconsin, a state known for having plenty of water, is choosing to purify sewage to grow their supply. It helps to know that the recycled water gets cleaned so rigorously that the essential minerals are removed, and they have to put it back after the p