Argument: Nuclear energy requires substantial water to cool the reactor
"Got Water? Nuclear Power Plant Cooling Water Needs." Union of Concerned Scientists: "For every three units of energy produced by the reactor core of a U.S. nuclear power plants, two units are discharged to the environment as waste heat. Nuclear plants are built on the shores of lakes, rivers, and oceans because these bodies provide the large quantities of cooling water needed to handle the waste heat discharge."