California leaders announced the impending filing of legal action and resolved to keep protecting the health and safety of Californians.

The Senate passed resolutions seeking to overturn waivers allowing California to set clean air standards protecting millions from vehicle pollution.

House Republicans' tax bill effectively ends incentives for clean energy and electric vehicles, undermining an American-made energy boom.

The U.S. House voted 216-212 to pass a Congressional Review Act resolution to overturn longstanding Clean Air Act protections that limit toxic pollution ...