Environmentalists prefer blaming climate change for wildfires, as the ancient Greeks blamed their gods when things went wrong ...

Several environmental groups are suing California air regulators over their recent update of a contentious climate program, ...

Blue states are bracing for a battle with the Trump administration over their authority to limit tailpipe emissions, a showdown that will have major repercussions on the types of cars and trucks sold ...

Blue states are bracing for a battle with the Trump administration over their authority to limit tailpipe emissions, a ...

Unlike typical wildfires, smoke from the L.A. fires — consisting of toxic materials from burned down homes, cars, and more — ...

The evaluation will also look at needs related to training harbor-craft workers in new engine technologies and advanced ...

Withdrawal of request for EPA waiver means the state no longer seeks to enforce its zero emission vehicle mandate on fleets.

“As goes California, so goes the nation.” Once a proud mantra, the phrase now serves as a dire warning. Today, California ...

In order for California to promulgate vehicle emission standards without violating the Clean Air Act, it must receive a waiver from the EPA for any state law that regulates vehicles covered by the Act ...

In partnership with ferry operator Catalina Express and whale watching boat operator Harbor Breeze Cruises, the Port of Los ...

Hino Motors announced it has reached an agreement with the US Department of Justice to settle charges of falsifying diesel ...