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Climate and Environment

EPA revokes Trump-era policy that loosened clean-air rules

The U.S. Environmental Protection Agency is revoking a Trump-era rule that overhauled how the agency evaluates air pollutants, a move the Biden administration says will make it easier to enact limits on dangerous and climate-changing emissions.

FILE - In this Thursday, Feb. 28, 2019, file photograph, pollution obscures the skyline of downtown as the sun rises over Denver, Col,. (AP Photo/David Zalubowski, File)