If the proposed finding is upheld after a public comment period, it would allow the EPA to regulate greenhouse gases under the Clean Air Act. However, regulations have not been detailed in the proposal.
It identified six gases that pose a potential threat: carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride. According to scientific analysis commissioned by the EPA, concentrations of these gases are at unprecedented levels as a result of human emiss
The week on Risk.net, December 9–15 2017Receive this by email