Atlantic Wire: Advocates of forceful action on climate change have long held a trump card. The primary source of greenhouse gas emissions in the U.S. is coal plants, and -since the Supreme Court has determined that those emissions are a pollutant -the EPA is mandated to regulate them. At some point, then, whether whatever president likes it or not, the agency had to make a rule limiting carbon dioxideemissions.
But, what the court giveth, the court can rescind in a tightly contested vote. And with a barrage...