The US Congress is finally ready to talk about the relationship between energy and water. The discussion is starting none-too-soon, as Congress considers ways to curb greenhouse gases, experts told the Senate Energy and Natural Resources Committee on Mar. 10.“Using today’s technologies, efforts to capture carbon from existing coal and natural gas plants or from new fossil [fuel] plants would cause increases in water consumption, a big concern for some regions, and may increase the cost of electricity, a concern for all,” said Carl O. Bauer, director of the US Department of Energy’s National Energy Technology Laboratory.Carbon capture and sequestration would increas...