US EPA is expected to formally repeal carbon pollution standards for coal and gas power plants, according to Bloomberg News. The announcement could come as soon as Monday, on the sidelines of the G20 energy ministers meeting in Houston. It follows a Trump administration proposal to remove rules introduced under Joe Biden that also covered mercury and other air pollutants. Biden's power plant rules were designed to cut US greenhouse gas emissions by one billion metric tonnes by 2047. The electricity sector accounts for nearly a quarter of US emissions, so the repeal removes one of the largest federal levers for grid decarbonization. EPA officials are also expected to propose a separate rule reversing the finding that power plant greenhouse gases pose a specific public health threat. The repeal is part of a broader push to remove environmental regulations seen as barriers to energy production. It leaves state-level policy and market incentives as the main forces shaping power sector emissions.
