Fifty years ago, on this day, August 10th, 1974, the pivotal Stockholm conference on climate modelling, (29 July to 10 August) ended.
For more about this conference, see here.
The amount of carbon dioxide in the air was roughly 330ppm. As of 2024 it is 424ppm, but check here for daily measures.
The context was that after the 1972 Stockholm Environmental Conference the United Nations Environment Program had been set up, and there was money and interest sloshing around for computer modelling of climate. It was fairly crude by today’s standards, but, you know, baby steps. There was Bolin, Flohn and the others. And presumably, Olof Palme was being kept informed. Flohn certainly briefed Palme at some point. I think that year
What we learn is that the scientific understanding of the build up of the consequences of the buildup of CO2 came along in leaps and bounds in the 70s. They’re only a couple of years away from “yellow danger light” as per Thomas Malone in July of 1977. Of course, the old beasts – Landsberg Charney and John Mason, were pooh poohing it all together. And Reid Bryson was angry that his dust theory was going tits up. But it was real, the emerging carbon consensus. That’s what we learned.
What happened next. A meeting in Norwich the following year put the death to the cooling idea. The Energy and Climate report of the National Academy of Sciences came out in 1977. And then, of course, the First World Climate conference in 1979. And that’s the end really, of there being serious debate about the CO2 problem.
What do you think? Does this pass the ‘so what?’ threshold? Have I got facts wrong? Interpretation wrong? Please do comment on this post, unless you are a denialist, obvs.
Also on this day:
August 10, 1980 – “Energy, Climate and the Future” seminar in Melbourne