Green MP Caroline Lucas said climate sceptics and “delayers” should be “nowhere near the prime minister’s top team”.

While claiming to support net zero, the new PM is pro-fracking, plans to increase extraction of oil and gas in the North Sea and finds solar farms ‘depressing’.

Brian Catt wrote in a 2020 blog that the United Nations was trying to “deceive and control global populations”.

Climate campaigners are concerned over Jane Toogood’s role in a company that sells technology to produce hydrogen from methane.

British Airways owner IAG led the list of buyers last year, analysis shows.

A climate scientist said the news that Samuele Furfari, a former EU energy advisor, had joined the Global Warming Policy Foundation showed the organisation was “clutching at straws to defend its fringe and unfounded views”.

Patrick Minford is a fellow at the Centre for Brexit Policy and led Economists for Free Trade, both of which have strong ties to the Global Warming Policy Foundation.

Steve Baker, who ran Suella Braverman’s failed Conservative leadership campaign and now supports Liz Truss, had the £2,000 ticket covered by Brexit Party donor Christopher Harborne.

MPs are whittling down the list of candidates for the next PM – but few are green champions.

Suella Braverman, Penny Mordaunt and Jeremy Hunt are also among Conservative party leadership candidates with direct or indirect links to the Global Warming Policy Foundation.