COP30, a U.N. conference on tackling global warming, had to be evacuated because the venue caught fire. The fire was not even the biggest problem at the meeting, which brought together around 200 countries exactly 10 years after the landmark Paris Climate accords. The Trump administration, which has twice pulled the United States out of the Paris accords, did not send a representative to COP30 , in Belém, on the Amazon in Brazil. It fell to Gavin Newsom, California governor and 2028 presidential hopeful, to play the role of American headliner. Newsom mocked Donald Trump as an “invasive species” and said he did not want the United States to be a “footnote on climate policy” But by the time the conference ended this weekend, it was Newsom’s climate politics that appeared to be at risk of

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