California Senator has previously slammed President Trump's scientific illiteracy and backed plans for a $10tr net zero investment drive
Joe Biden, who tops opinion polls in the Democratic primaries, pledges to build a coalition of nations to scrub dirty energy from China's belt and road programme
Mid-term election results prompt hope of renewed progress on climate action in US, after gains for Democrats in the House and key state governor seats
The Democrats' draft platform won't be ratified until the convention, but climate activists are already hailing it as a 'monumental victory'
Chair of Clinton campaign reveals action on climate change will be a top priority, fuelling hopes a Clinton presidency would build on recent progress from Obama administration
Mayor's endorsement could turn climate change into a serious election issue – and it might even embolden Republicans
Vice President Joe Biden defends loan guarantee programme and pressures candidate Paul Ryan into admission during last night's debate