President-elect Donald Trump is seeking quick ways to withdraw the United States from a global accord to combat climate change, a source on his transition team said, defying broad international backing for the plan to cut greenhouse gas emissions.

Since Trump's Nov. 8 election victory, governments ranging from China to small island states have reaffirmed support for the 2015 Paris agreement during climate talks involving 200 nations set to run until Friday in Marrakesh, Morocco.

Trump has called global warming a hoax and has promised to quit the Paris Agreement, which was strongly supported by outgoing Democratic U.S. President Barack Obama.