The absence of senior U.S. officials at this week’s United Nations climate conference in Belém, Brazil, underscored a leadership void from one of the world’s largest emitters. The Trump administration sent no top-level delegation to COP30, leaving state and local leaders to represent U.S. climate commitments and to rebut the federal approach.
California Governor Gavin Newsom, a frequent Trump critic and a potential 2028 contender, used a ministerial meeting to sharply criticize the White House for what he described as an abdication of responsibility and leadership on climate. He positioned California as a counterexample, stressing the state’s continued efforts on clean energy and invoking the United States’ earlier, bipartisan environmental milestones as reasons the country should not be pushed to the margins at global talks.
Newsom — nearing the end of his second and final term and increasingly active on the global stage, including a 2023 climate trip to China and visible roles in the 2024 campaign season — warned that disengagement would open space for geopolitical rivals. With China present at COP30 and the United States notably absent at senior levels, he argued the stakes go beyond emissions targets: leadership in climate and clean energy is also an economic race.
He also attacked Trump administration policies. After years of skepticism about mainstream climate science and advocacy for expanded fossil-fuel production, the administration has moved to open more federal lands and waters to oil and gas development. While Newsom spoke in Brazil, reports said the administration was considering a draft proposal to permit offshore drilling off California’s coast — an area largely shielded by past state protections and pollution concerns. Newsom called that move unacceptable and questioned why it was being floated during an international climate summit, suggesting uneven treatment compared with other states and tying the timing to political interests.
Beyond climate policy, Newsom broadened his critique to U.S. conduct abroad. He raised concerns about recent U.S. air strikes on maritime vessels alleged to be involved in drug trafficking, calling for accountability and respect for due process. Reports indicate the administration has carried out multiple strikes since early September, with dozens of fatalities; legal experts and U.N. officials have criticized some operations as extrajudicial, while the administration defends them as necessary to disrupt trafficking and has sought new designations for transnational criminal organizations.
At an event titled “America Is All In,” Newsom dismissed the idea that federal resistance negates subnational action, urging clearer, more relatable climate messaging to reach skeptical voters. He said technical terms and abstract targets can alienate people and that advocates need better metaphors to explain the stakes and solutions. When pressed about his own national ambitions, he declined to be drawn into speculation.
Overall, Newsom used COP30 as a platform to both reaffirm California’s climate leadership and to cast the current federal approach as a strategic and moral retreat — one that, he argued, risks conceding economic opportunity and international influence to rivals.
