But one thing that is clear about Newsom is his attitude. The two-term governor has modulated climate policy in some cases, but, in general, has refused to yield to threats from the business community about the costs of action. And, as his tack against Trump has shown, he isn’t afraid to be relentless as he takes on opposition.

Speaking at the COP30 climate summit in Brazil, California Governor Gavin Newsom said his state, the world’s fourth-largest economy, would continue to prioritize green technology.

Newsom spoke from São Paolo to a room of business executives and investors. He traveled to Belém for the remainder of the week, where global leaders will work to turn ideas into actionable plans around clean energy transition, artificial intelligence and global trade wars, all issues expected to take center stage.

California Gov. Gavin Newsom pulled no punches at the climate talks in Brazil, taking aim at President Donald Trump for abandoning efforts to tackle the climate crisis

California Governor Gavin Newsom got a hero’s welcome last week when he arrived in Brazil for COP30. Because President Donald Trump basically boycotted the United Nations Climate Summit, it was Newsom who ended up huddling with diplomats and executives,

By Valerie Volcovici BELEM, Brazil (Reuters) -California Governor Gavin Newsom has arrived in the Amazon city of Belem with a message for the COP30 summit: his state will continue to be a "reliable partner" on climate policy and green technology despite Washington's abandonment of the effort.

The U.S. is maintaining a presence at COP30, despite the Trump administration declining to send an official delegation to this year's climate conference in Brazil.

California Gov. Gavin Newsom flew to Brazil this week for the 30th annual United Nations Climate Change Conference, commonly known as COP30.

California Gov. Gavin Newsom is warning that eight senators' decision to break with Democrats and end the government shutdown shows they aren't alarmed enough about President Donald Trump's impact on political norms.

Gov. Gavin Newsom will have to fight to extend his influence beyond California as he waits for the 2028 presidential race to heat up.