India, Jan. 8 -- In an unprecedented rollback of US engagement with multilateral institutions, President Donald Trump ordered the United States (US) to withdraw from 66 international organisations and treaties, including the United Nations Framework Convention on Climate Change (UNFCCC) and the Intergovernmental Panel on Climate Change (IPCC)-the world's central pillars for global climate action and climate science.

The decision was formalised through a presidential memorandum signed on November 7, 2025, covering 35 non-UN bodies and 31 United Nations entities. The White House, in an official statement, said the organisations "no longer serve American interests" and advance agendas that are "ineffective or hostile".

The move makes the U...