Bradford Plumer noted yesterday that "only one of the 37 Republican candidates for Senate supports climate action - Mike Castle in Delaware." And Castle lost his primary last night:

Odds are ... climate legislation will be pulseless for the next two years. In the House, Joe Barton may well reclaim the chair of the energy and commerce committee. Barton, recall, is the guy who apologized to BP in the wake of the oil spill, and the last time he ran the House energy committee, in 2005, he helped author a bill whose defining feature was billions of dollars in oil and coal subsidies. For most greens, simply preserving the status quo will be the rosiest scenario with Barton in charge. (And even if Barton, who is technically term-limited, doesn't get the chair, there's not a ton of daylight between him and the other Republican candidates.)

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