Sir Tony Blair has called for a major rethink of net zero policies, arguing that limiting energy consumption and fossil fuel production is "doomed to fail".
In a new report, the former Labour prime minister says voters "feel they're being asked to make financial sacrifices and changes in lifestyle when they know the impact on global emissions is minimal".
He does not call for Labour to halt its push to decarbonise the UK economy - but says all governments need to rethink their approach, as it is not working.
The Tories - who have joined Reform UK in opposing net zero emissions by 2050 - urged Labour to end the "mad dash" to this goal - but Downing Street said it would not be changing course.