New York Times: To stave off climate change, sources of electricity that do not emit carbon will have to replace the ones that do. But at the moment, two of those largest sources, nuclear and wind power, are trying to kill each other off. In the electricity market, both are squeezed by pressure from natural gas, which provides some carbon reductions compared with coal but will not bring the country anywhere near its goal for reducing greenhouse gas emissions. Natural gas has a carbon footprint that is at least...