The Globe and Mail reports in its Thursday, Feb. 19, edition that a coalition of health and environmental groups sued the U.S. Environmental Protection Agency on Wednesday, challenging the revocation of the 2009 endangerment finding that deemed carbon dioxide and other greenhouse gases a threat to public health. An Associated Press dispatch to The Globe reports that this Obama-era finding has underpinned most climate regulations under the Clean Air Act for motor vehicles, power plants and other sources of pollution contributing to climate change. A legal challenge in the U.S. Court of Appeals for the District of Columbia Circuit claims that the EPA's rescission of the endangerment finding is unlawful. The 2009 finding supported essential climate pollution safeguards, including from vehicles. The Biden administration's clean vehicle standards aim to achieve the largest carbon pollution reduction in U.S. history, saving lives and money on gas. After nearly two decades of scientific evidence supporting the 2009 finding, "the agency cannot credibly claim that the body of work is now incorrect," said Environmental Law & Policy Center lawyer Brian Lynk. The dispute is likely to end up back before the Supreme Court.