Europe's largest economy and the biggest US?state in economic terms will back the work of the 'Under 2 Coalition', which includes cities, regional governments and states

Germany, California unite to combat climate change

Europe's three biggest economies -- Germany, France and Italy -- issued a joint statement in which they criticised Trump's decision and vowed to keep fighting against climate change

Europe dismayed by Trump's decision to pull out of climate accord

But the US president said he was open to negotiating a new deal

Trump officially withdraws from 'punishing' Paris climate pact

Trump tweeted minutes after the G7 summit ended in a deadlock, as other member nations urged the US president to take steps to stem global warming

Isolated Trump to take Paris climate decision next week

Senior adviser Steve Bannon is all for the Trump team to quit the agreement, while Ivanka Trump is against that position

Trump administration divided over Paris climate accord