On this day 41 years ago, the Chief Scientific Advisor, B.N. Nicholson wrote a report which included this –

The predicted changes in climate accompanying increases in atmospheric concentrations of CO2 and other gases will have widespread and possibly catastrophic impacts on agriculture, energy supply and demand, sea-defences etc.
The amount of carbon dioxide in the air was 352ppm. As of 2025, when this post was published, it is 430ppm. This matters because the more carbon dioxide in the air, the more heat gets trapped. The more heat, the more extreme weather events. You can make it more complicated than that if you want, but really, it’s not. Fwiw, I have a tattoo of the Keeling Curve on my left forearm.
The broader context was that by the early 1980s climate scientists were pretty sure that there was a quick (in geological terms basically instantaneous) warming on the way. Not that anyone in “power” seemed to give a damn.
The specific context was that Thatcher had already been warned about carbon dioxide build-up by her previous Chief Scientific Advisor, John Ashworth. Meanwhile, by 1984 it was becoming obvious to scientists who could add up that there was serious trouble ahead.
What we learn. There were plenty of warnings – our “leaders” did not lead.
What happened next. Thatcher was finally convinced in 1988, and the next phase started – one of empty promises.
Also on this day
December 13, 1967 – Sweden begins to save the world…
December 13, 1973 – Edward Heath announces Three Day Week
December 13, 1978 – BBC Radio talks about climate change “One Degree Over” – All Our Yesterdays
December 13, 1984 – Christian Science Monitor monitors the #climate science – ooops.





