Scientists debate: could renewable energy entirely replace fossil fuels in U.S. by 2050?

Photovoltaic solar power field at Volkswagen plant in Chattanooga, TennesseeScientists generally debate their studies and projections in relatively civil language, but perhaps the currently adversarial tenor of U.S. politics has spilled over into science. A 2015 study on the potential for renewable energy use in the U.S. has now produced not only a stringent attack, but a harsh rebuttal to that attack in language rarely...