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California Gov. Gavin Newsom was the most prominent American official to attend the COP30 global climate conference in Belém, Brazil, this week — using the platform to criticize the absent Trump administration.

The White House mocked the trip, noting California’s continued rank among the highest in U.S. energy costs.

Newsom’s office put out a summary of his visit to the conference, saying it shows California is "leading by example" and proving that " climate action and economic growth go hand in hand."

"As Donald Trump abandons American climate leadership, California continues and accelerates its climate action, urging global investors to embrace the technologies and infrastructure driving the clean energy future," hi

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