The elimination of the State Department’s Office of Global Change leaves the world’s largest historical polluter with no official presence at COP30 in Brazil later this year.

The Trump administration’s EPA is set to propose reversing the 2009 endangerment finding that classified carbon dioxide and other greenhouse gases as pollutants threatening human health, a move that could gut US climate regulations.

An opinion by the World Court finds new legal requirements in the Paris Agreement, raising legal questions about the U.S. signing the treaty with Senate approval

The Trump administration is trying to overturn the EPA's endangerment finding, which determined that greenhouse gas emissions can be regulated under the Clean Air Act. Lisa Heinzerling, former senior climate policy counsel to the EPA administrator,

The US Environmental Protection Agency is considering scrapping a landmark almost two-decade old legal opinion that greenhouse gas emissions are harmful to human health, the Washington Post reported.

According to two people familiar with the draft, it would eliminate the bedrock scientific finding that greenhouse-gas emissions threaten human life by dangerously warming the planet.