Historic new rules aim to curb global warming

Climate Central – by John Upton As the Obama Administration honed its historic new climate rules affecting power plants, it began thinking about electricity more broadly. It was a shift in perspective that in the end may  produce the nation’s newest system for trading pollution. Instead of looking solely at how each state could reduce pollution from its electricity sector, the U.S. Environmental Protection Agency’s new carbon dioxide limits emphasize interstate cooperation. That cooperation will be possible, the EPA realized as it reviewed millions of public comments on the plan’s draft, partly through the regional nature of the nation’s electrical grids.…