What current provision of the Waxman-Markey bill will have the greatest impact on green marketing?

The American Clean Energy and Security Act (aka the Waxman-Markey bill) has made its way out of the House Energy and Commerce Committee and is now headed to the full House for a vote that could be set as early as late June.  Experts agree that the bill will go through numerous revisions by the time it reaches the desk of President Obama, but with its current provisions, which do you feel will have the greatest impact on green marketing initiatives?