But the Environmental Protection Agency has on the table a far more modest proposal for curbing emissions -- with far greater possibility for bipartisan and trans-ideological agreement.
The Environmental Working Group finds that the federal requirement (created by Republicans in 2005) causes a net increase in greenhouse emissions:
Taking 580,000 cars and trucks off the road would reduce a lot of greenhouse gas emissions. And something like that would happen if a proposal by the U.S. Environmental Protection Agency becomes reality.
You can read their report here.