The House of Lords Science and Technology Committee were taking evidence on the subject of the resilience of the electricity grid, hearing from Kevin Anderson among others.
Some of the exchanges seemed rather significant to me.
At around 10:44 Anderson suggested that future temperature rises could increase demand for airconditioning, producing a doubling of the load on the grid. Demand from electric cars could produce a similar increase and demand for heat would produce the same increase again.
This was all heard in respectful silence by their lordships, but then at 11:00 Matt Ridley asked a simple question that seemed to launch something of a rebellion by the committee, who did the absolutely unthinkable and started challenging the good professor. Who didn't seem to like it.
I can't remember such a hostile reception for a green in Parliament before.