Read here. The U.S. free market approach to energy efficiency does a superior job at reducing CO2 emissions than the 'cap n' trade', heavily regulated, Kyoto-style approach favored by the EU, the UN, and of course, the enlightened, big tax/big govt, Obama regime.
Despite the better results achieved by the U.S. approach, Obama and his academic accomplices want to make it even more painful - $7 to $9.00 per gallon gas - for U.S. consumers, so we can all be like those inefficient, wasteful, polluting, hypocritical EU'ers. (click image to enlarge)