Cap and Trade

What are carbon credits?

Rick Perry's environmental record

Cap and trade is facing obstacles across the country

Herman Cain's environmental record

Al Gore slams President Obama on climate change issues

Jon Huntsman's environmental record

Michele Bachmann's environmental record

Mitt Romney's environmental record

For Pawlenty, it's not easy being green

Newt Gingrich's environmental scorecard

Bin Laden's death could mean second life for cap-and-trade

Sen. Bingaman's departure means more uncertainty for the environment

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