Obama speaks at the Climate Summit and is Full of Hot Air

"If other countries are willing to heed the president's call to step forward and embrace this accord, Copenhagen can succeed," said Rep. Edward Markey (D-Mass.), co-author of the House-passed climate bill, in Copenhagen. "One thing is clear — U.S. leadership is back."

........ these are politician's words and do not necessarily represent the beliefs of the  people they were elected to represent. As in the past, politicians rarely do anything unless it benefits them.