California is expanding a mobile air quality monitoring program, deploying Aclima vehicles equipped with advanced pollution sensors statewide after success in West Oakland.

EPA plans to eliminate greenhouse gas reporting rule. Emissions from large polluters dropped 20% since 2010. Rural areas like southwest Indiana fight for air monitoring. Experts warn rollback ...

State Department staff were taken aback this week by a department directive instructing embassies and consulates to stop publishing air quality monitoring data.