The Sierra Club has just won a case before the EPA appeals board which will make it very hard to build new coal plants unless they actually have carbon mitigating technology in place. Looks like we're headed to clean coal or no coal (of course with the requisite caveats that this case isn't set in stone, blah blah blah). I often criticize the electoral strategy of the Sierra Club, but their legal work and anti-coal work does bring results. Kudos.
One of the claims of the coal industry - that there's some capacity to use coal without emitting carbon dioxide using fancy new technology - is about to be tested in a big way. One sign to look for is squealing; if the industry gets very upset, it means they weren't really telling the truth about the ability to use clean coal technology in the first place. If they don't squeal, then it looks like we're going to get a whole bunch of coal plants that don't emit carbon.