Immense amounts of methane are escaping from oil and gas sites nationwide, worsening global warming, even as the Trump administration weakens restrictions on offenders.
The Environmental Protection Agency plans to adopt a new method for projecting the future health risks of air pollution that experts have said is not scientifically sound.
The proposal is designed to provide legal justification for weakening not only the rules on mercury emissions from coal-burning power plants, but also other pollution controls as well.