 Environmental groups called the decision a potential loss for addressing climate change. Natural gas is methane, a potent climate warmer when it leaks. The White House said it's disappointed and that the U.S. already is the world's largest gas exporter and on track to double existing capacity by 2030. Gas exports have boomed as the U.S. sends shipments to Europe after Russian exports were cut amid the war in Ukraine. Jeff Brady, NPR News.