Interesting story in the Times about the efforts of Republicans and coal companies to fight the EPA's new regulations on carbon dioxide emissions, which Obama wants to be a big piece of his legacy. Since Congress can't stop the regulations from being promulgated, they are relying on court fights and obstruction by state governments to keep them from taking effect.
Coal power is an old technology and future improvements in efficiency will be small. Solar power is tied to silicon chips and the technology is getting better by leaps and bounds. There is nothing state governments or coal companies could do about that even if they wanted to.
I also have to think that fighting so hard for coal is a bad strategy for Republicans. It ties them to the fading parts of the country, to fading industries, to technologies and attitudes that seem ridiculously out of date to most young Americans. In the short term it may rally working class Americans to them in battleground states like Pennsylvania, Ohio and Colorado, but in the long term they are anchoring themselves to the fading past of black smoke and black-faced men emerging from deep pits in the ground. The future is in silicon, and in the sun and the wind.