As both Labour and Conservatives ponder their green policy, we look back at the Tories’ propensity to promise much – and deliver little

Conservative party support for environmental causes has generally been vocal at election time but hesitant and half-hearted in power. On one hand, the party – with the exception of a few hardcore climate crisis deniers – has never reached the total opposition to green causes that disfigures rightwing parties in other nations, in particular the US Republicans. On the other, it has generally failed to enact the kind of legislation that would allow the UK to take a global lead in the battle against global heating, as can be seen from the records of three recent Tory prime ministers.