The Climate Party was launched on the same day that it was announced that Liz Truss had won the Conservative leadership contest.

Speaking at the launch of his new party, Ed Gemmell said: “We’re throwing the gauntlet down to Liz Truss on real leadership. Forget trying to appeal to people with a short-term political expediency of just the next election. We want to see climate leadership.

“We will take on you and all your candidates that are in marginal seats; we will be there biting at the heels of all those candidates who are taking away the votes of centre-right climate-conscious voters. And we are going to take on the Net Zero Scrutiny Group.”

The government currently has a target of net zero emissions by 2050, whereas the pro-business Climate Party backs a 2030 decarbonisation target, which it describes as the “biggest business opportunity on the planet”.

Truss, who will officially become prime minister tomorrow, is understood to be planning to agree...