"Barack Obama will classify carbon dioxide as a dangerous pollutant that can be regulated should he win the presidential election on Nov. 4, opening the way for new rules on greenhouse gas emissions.
"The Democratic senator from Illinois will tell the Environmental Protection Agency that it may use the 1990 Clean Air Act to set emissions limits on power plants and manufacturers, his energy adviser, Jason Grumet, said in an interview. President George W. Bush declined to curb CO2 emissions under the law even after the Supreme Court ruled in 2007 that the government may do so.
"If elected, Obama would be the first president to group emissions blamed for global warming into a category of pollutants that includes lead and carbon monoxide. Obama's rival in the presidential race, Republican Senator John McCain of Arizona, has not said how he would treat CO2 under the act."
You and I are dangerous because we expel that dangerous gas CO2 constantly.
Barack Obama expels hot air.