… in three regions.

When it comes to climate change, coal, the dirtiest of the fossil fuels, is a definite baddie — BTU for BTU, burning it puts out almost 30 percent more carbon dioxide (CO2) than burning petroleum and about 78 percent more CO2 than natural gas. Want to fight climate change? Then you better curb coal-fired power plants.* And to the Obama administration’s credit, they have undertaken (or at least seem about to undertake) using the authority they have under the Clean Air Act to stop the building of new coal-fired power plants that fail to limit their carbon output and maybe even force existing coal-fired power plants to clean up their act.

For many who