2025年11月,トランプ政権は重要な環境保護を撤回し,広大な沿岸地域を石油掘削に開放し,主要な保全法を弱め,COP30をスキップしました. In November 2025, the Trump administration rolled back key environmental protections, opening vast coastal areas to oil drilling and weakening major conservation laws, while skipping COP30.

2025年11月、世界的指導者たちがブラジルにおけるCOP30の結論として、トランプ政権は、カリフォルニアとフロリダの約27億エーカーの沿岸水域を石油掘削に開放する計画を含め,環境のロールバックを公布した. In November 2025, as global leaders concluded COP30 in Brazil, the Trump administration announced sweeping environmental rollbacks, including plans to open nearly 1.27 billion acres of coastal waters off California and Florida to oil drilling—the first such move in decades—and proposed weakening the Endangered Species Act and narrowing federal protections under the Clean Water Act, potentially leaving only about 19% of wetlands protected. 米国は気候変動サミットに出席せず,地球規模の気候変動外交が欠如していることを批判した. The U.S. did not attend the climate summit, drawing criticism for its absence from global climate diplomacy. 政府は,エネルギー自立を促進し,規制の負担を軽減する措置を講じたが,環境支援者,科学者,国家首脳は,両政党の環境改革に対し,生態系の危機、洪水リスクの増加、国際気候変動の努力を弱体化させるという警告を発した. The administration framed the actions as promoting energy independence and reducing regulatory burdens, but environmental advocates, scientists, and state leaders from both parties warned the changes threaten ecosystems, increase flood risks, and undermine international climate efforts.