Michigan's plan to clean up regional haze gets federal approval

US environmental regulators are approving Michigan's plan to reduce regional haze, which is air pollution that makes distant objects look blurry. This means Michigan's strategy for improving visibility in national parks and wilderness areas will now move forward under federal oversight.

States must regularly update their plans to reduce regional haze, a type of air pollution that affects visibility in protected natural areas. This approval means Michigan's specific approach to meeting federal clean air goals for the next decade is now locked in. It sets the regulatory path for industries in Michigan that contribute to air pollution, requiring them to meet specific targets and potentially invest in new controls.