In addition to the Carbon Nine, research by economists Matthew Kahn and Michael Cragg shows these 22 Democrats could play a key role in passing comprehensive climate legislation this year, based on the per-capita carbon emissions of their respective congressional districts.

Most of the lawmakers listed below have stayed mum about their opinion of the Waxman-Markey climate bill (except for those on the Energy and Commerce Committee, which voted on the bill last week). Heard where any of the others stand? Let us know in the comments section.

On the “green” side of the Kahn-Cragg analysis:

On the “brown” side:

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