This shows that if nations meet their lowest stated ambitions in the Copenhagen Accord, we could be on track to reach 3 degrees or more. Current pledges mean a greater than 50% chance that warming will exceed 3°C by 2100.
A poll conducted in January by Yale University in New Haven, Connecticut, and George Mason University in Fairfax, Virginia, found that the percentage of Americans who think that global warming is occurring dropped from 71 to 57 percent between 2008 and 2010. The proportion who said they trust scientists for information about global warming dipped from 83 to 74 percent.