Nevada's plan to clean up regional haze gets a partial green light from US environmental regulators

US environmental regulators are proposing to approve parts of Nevada's plan to reduce regional haze, which is air pollution that makes distant objects look blurry. This means Nevada can move forward with some of its strategies to improve visibility in national parks and wilderness areas.

States must regularly update their plans to clean up regional haze, a type of air pollution that obscures views in protected natural areas. This partial approval means Nevada's approach to meeting federal clean air goals is mostly acceptable, but some parts still need work. It sets a precedent for how other states might get their own haze plans approved, showing what US environmental regulators will and will not accept.