There is a problem with British politics. Dark money from abroad is being funnelled into our system. A complex web of interlocking charities, thinktanks, advocacy groups and campaign outfits is being bank-rolled to push a policy agenda onto the public that makes us poorer, puts us in hock to hostile powers and undermines working people.

According to the left, Kemi Badenoch and Nigel Farage are puppets of such shadowy interests: Tufton Street thinktanks bankrolled by oil companies, Christian fundamentalists and perhaps even Russian money. These allegations are well-ventilated and have been exhaustively investigated. Most lead nowhere.

Yet no similar scrutiny is applied to a far bigger lobbying effort – the concerted campaign to push a ruinous net-zero agenda. This is the story of the Dark Green lobby: a network of foundations, research groups and policy shops, often funded through foreign channels. It has been astonishingly successful in shaping policy, controlling debate and overruling elected governments in the courts. It has prevented the exploration of oil and gas in the North Sea, kept energy prices high and made us ever more dependent on Chinese technology.

The politician at the heart of this ecosystem is the Energy Secretary, Ed Miliband. While his policies have been challenged, the network behind him has remained in the shadows.