Donald Trump's election would derail Paris climate deal, warns its architect

A climate change denier as US president would dramatically threaten global action to cut carbon emissions, says ex-French foreign minister Laurent Fabius

The election of Donald Trump would derail the landmark agreement on climate change reached in Paris last December, the architect of the accord has warned.

Trump is now virtually certain to be the Republican candidate for president and has said "I am not a great believer in manmade climate change", leading to fears he would attempt to unpick the historic agreement if he became president.