If successful, the repeal could strip away the federal government’s most powerful way to control the country’s planet-warming pollution and fight climate change.

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 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.

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