If the US stayed in the tent under Trump, its negotiators could, for example, agitate to weaken any deals struck at the meeting. We saw such tactics from Saudi Arabia at COP29 in Baku. The oil state repeatedly disrupted the talks and in one instance, sought to alter important text in the agreement without full consultation.

President Donald Trump has once again vowed to withdraw the US from the Paris climate agreement, the world's most important effort to tackle rising temperatures.The first Trump administration made a similar move in 2017,

The Paris agreement is a mostly voluntary climate pact originally written to both try to reduce warming and withstand the changing political winds in the U.S.