An Ozone Action Day has been issued for the Houston, Galveston, and Brazoria areas due to possible high levels of air pollution.

The U.S. Senate is moving forward with an effort to block California's nation-leading standards for vehicle emissions.

Former Tonight Show host and avid car collector Jay Leno thinks so. He’s thrown his support behind a bill in the state ...

Who runs the Senate? The democratically elected Majority Leader, Sen. John Thune? Or leftover partisan Harry Reid-appointee, ...

State and local authority over air quality will be jeopardized if Congress revokes California’s auto emissions limits, ...

Before the EPA, the US environment was not federally protected. Vintage photos show Los Angeles before regulations limited ...

Senate Republicans agreed today to override Senate rules and use the Congressional Review Act to block California’s clean car waivers, which allow the state to set stronger standards to protect people ...

The Children's Hospital of Philadelphia lot would be located in a working-class, largely residential neighborhood, where ...