USA

US President Donald Trump announced the reversal of the 2009 “endangerment finding,” an Obama-era scientific ruling. The endangerment finding concluded that six greenhouse gases, including carbon monoxide and methane, endanger public health and welfare. The ruling followed a 2007 US Supreme Court decision stating that greenhouse gases qualify as air pollutants under the Clean Air Act and must be regulated by the Environmental Protection Agency (EPA). The reversal removes much