The location of Rishi Sunak and Grant Shapps’s net zero relaunch today shows there has been a change of emphasis since the PM set up the Department for Energy Security and Climate Change last autumn.

One suspects a bit of ideology creeping in: fossil fuels have become a great bogeyman, and nothing will make them acceptable

Whereas Boris Johnson might have sought to make such an announcement at a wind farm or solar farm, today’s relaunch took place at Culham in Oxfordshire, the site of Britain’s nuclear fusion research facility.