The UN climate summit in Copenhagen has formally closed with a deal many countries admit falls far short of the action needed to tackle global warming.

The recession has slashed U.S. output of planet warming gases and puts the country on track to reach President Barack Obama's short-term emissions goal, but cutting the pollution further will take more effort as the economy recovers.

The leak of hundreds of thousands of documents and emails from the University of East Angilia’s Climate Research Unit in the United Kingdom

The above quote is from the New York Times article on November 20, 2009 titled, Hacked E-Mail Is New Fodder for Climate Dispute."

President Obama came into office pledging to end eight years of American inaction on climate change under President George W. Bush, and all year he has promised that the United States.
http://www.nytimes.com/2009/11/16/science/earth/16climate.html