California gets a new plan to clean up its air, replacing an old one

US environmental regulators are proposing to approve California's updated plan to reduce regional haze. This means California will now follow a new strategy to improve visibility in national parks and wilderness areas.

California has been working on this plan for years. The new approval means the state can move forward with its updated approach to reducing air pollution that drifts across large areas. This is part of a national effort to clean up the air in protected natural spaces.