With Trump, who has dismissed climate change, in charge of the world's leading economy, those experts fear other countries — especially top polluting nation China — could use it as an excuse to ease off their own efforts to curb carbon emissions.

US President Donald Trump's position on climate change has been in the spotlight again, after he criticised "prophets of doom" at the World Economic Forum in Davos. At the event, which had sustainability as its main theme,

The election of Donald Trump as president for a second time and the Republican takeback of the U.S. Senate could undo many of the national climate policies that are most reducing planet-warming greenhouse gas emissions,