By Ben Geman - 01/05/10 02:31 PM EST
Michigan and other industrial states play an important role in the climate and energy debate. Both of its Democratic senators – Carl LevinCarl LevinThe Fed and a return to banking simplicity What Our presidential candidates can learn from Elmo Zumwalt Will there be a 50-50 Senate next year? MORE and Debbie StabenowDebbie StabenowGreat Lakes senators seek boost for maritime system Podesta floated Bill Gates, Bloomberg as possible Clinton VPs Dems to McConnell: Pass 'clean' extension of Iran sanctions MORE – are willing to back a federal climate and energy bill.
But they are also among the senators demanding that any bill include trade provisions – including so-called carbon tariffs – to prevent manufacturers from being undercut by competitors in nations that don’t require major emissions curbs.