More than three dozen Democratic senators have begun an independent inquiry into the US Environmental Protection Agency (EPA) following a huge change in how the agency measures the health benefits of reducing air pollution that is widely seen as a major setback to US efforts to combat the climate crisis.
In a regulatory impact analysis, the EPA said it would stop assigning a monetary value to the health benefits associated with regulations on fine particulate matter and ozone. The agency argued that the estimates contain too much uncertainty.
