Lord Frost is one of several departures from the Global Warming Policy Foundation, which has links to Tory leader Kemi Badenoch.

The Conservative leader, who attacked “radical green absolutism” in a Washington DC speech, recently met with a host of influential anti-climate figures.

Campaigners warn that the UK will face “pressure from American fossil fuel interests” to slow its energy transition.

Victoria Hewson called the 2050 ambition a “huge own goal” while working for a Tufton Street think tank.

Jeremy Clarkson spreads well-worn conspiracy theory that casts inheritance farm tax policy as plot to “replace farmers with migrants”.

The Climate Policy Institute attending the UN summit was founded by a state-backed think tank which has received fossil fuel funding.

The Heritage Foundation’s Project 2025 blueprint proposes sweeping anti-climate policies.

The new leader of the opposition has regularly criticised the UK’s green ambitions.

The Tory leadership candidate has welcomed the support of a group that claims “there is no greenhouse effect”.

Experts accuse Farage’s party of a ‘deliberate campaign of misinformation about climate change’ in the House of Commons.