In West Sacramento, Gov. Gavin Newsom announced the lawsuit as he accused President Donald Trump of siding with Big Oil for ...

The suit accuses the agency of illegally repealing the endangerment finding, the scientific assessment that required it to regulate greenhouse gases.

The suit challenged the Trump administration’s repeal of a scientific finding that had been the central basis for U.S. action to regulate greenhouse gas emissions and fight climate change.

California, Massachusetts, Connecticut and New York are leading a group of 20 other states in suing the US Environmental Protection Agency for renouncing its ability to regulate greenhouse gas ...

'They want to make pollution great again,' Gov. Gavin Newsom said in criticizing the climate protection rollback.

States and cities have sued the EPA to restore a critical climate protection, claiming the agency is jeopardizing the health ...

EPA's repeal of the 2009 endangerment finding in February eliminated the foundation of much of U.S. climate policy.

California Attorney General Rob Bonta is co-leading a nationwide lawsuit against the U.S. Environmental Protection Agency ...

A new lawsuit by 23 states and D.C. is challenging the EPA's move to rescind the legal foundation for regulations limiting greenhouse gas emissions.

Oregon Attorney General Dan Rayfield joined a lawsuit on Thursday, accusing the Trump administration of unlawfully rolling back climate protections.

The Obama-era finding on greenhouse gas emissions underpinned almost all climate change mitigation measures by the federal ...

The EPA contends President Obama didn't have the authority to issue the finding, and bypassed the legislative branch in a case of presidential overreach.