Should Congress block EPA efforts on global warming?

What's your take on a move in the Senate to block the Environmental Protection Agency from forcing Americans to emit fewer greenhouse gases?

In recent days, lawmakers gave up an effort to pass a climate-change bill this summer, but the Senate may consider a measure against further EPA action on global warming. In a bit of political pressure, Obama has threatened that the EPA might act, using the 1970s Clean Air Act, if Congress doesn't.

Should Congress or the EPA set new rules on carbon pollution?

Offer your constructive view in the form below.