President formally files new plans under Paris agreement and hails ‘boldest climate agenda in American history’

Joe Biden has announced tougher targets on the US’s carbon dioxide emissions for the next decade, in a defiant final gesture intended as a “capstone” on his legacy on the climate.

With just weeks to go before Donald Trump enters the White House, the Biden administration is formally filing new plans under the Paris agreement – the global climate treaty from which Trump has vowed to withdraw.