fertiliser, the challenge is more real, but there is still an important and obvious first step – eat less meat. A large part of the world’s agricultural system is dedicated to growing crops and vegetables to feed animals, which we then eat. Reduce the last part of this equation (i.e. eat less meat), and the huge inefficiencies in the system mean far less fertiliser is required.

However, CCS on a powerstation is not going to stop CO2 being released from burning kerosene in an aircraft. The only near-medium term answer for this sector is a rapid, massive and fair cut in aviation use – at least until zero-carbon aircraft have replaced most of the current fleet.