French President Emmanuel Macron hosted 164 world leaders, government members, business leaders and prominent figures involved in fighting global warming at the Elysee presidential palace in Paris.

Richard Branson, Bill Gates and Michael Bloomberg were amongst those attending the The 'One Planet' summit held on the two year anniversary of the Paris climate accord.

Macron called the summit after US President Donald Trump's announcement in June that he would pull America out of the 2015 Paris pact which had taken nearly 200 nations more than two decades to negotiate.