What California's Record Shows About Newsom’s Claims to Climate Leadership

Bloomberg.com · last updated November 20, 2025 – 12:26 AM

The COP30 climate summit is entering its endgame in Brazil. But the US will have no influence over any international agreement as President Donald Trump’s administration declined to participate.

In that vacuum, California Governor Gavin Newsom eagerly seized the mantle of US leadership, boasting about his state’s strides in decarbonizing its economy and slashing greenhouse gas emissions.

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