Trump administration to rescind US 'endangerment finding'.

The EPA under the Trump administration plans to repeal the 2009 'endangerment finding' that underpins most federal greenhouse gas rules; the repeal is due to be released on Thursday and is expected to prompt legal challenges.

The U.S. Environmental Protection Agency under the Trump administration is preparing to rescind the 2009 "endangerment finding," the scientific determination that greenhouse gases endanger public health and welfare. That finding provides the legal basis for many federal limits on greenhouse gas emissions under the Clean Air Act, including vehicle and industrial standards. White House and EPA spokespeople described the action as a significant deregulatory move and framed it in economic terms. The repeal is due to be released on Thursday. Key points: - The EPA plans to rescind the 2009 endangerment finding that underpins most federal greenhouse gas regulations. - White House and EPA officials have framed the change as a major deregulatory action and said it would remove costly regulations. - The repeal is scheduled for release on Thursday and is expected to prompt legal challenges from environmental groups and some states. Summary: The announced repeal would remove the legal foundation the EPA has used to regulate greenhouse gases, with implications for vehicle, power plant and industrial emissions rules that relied on that finding. Environmental groups and states that have defended the finding in court are reported to be preparing challenges; the timing and outcome of any legal proceedings are undetermined at this time.