Forty four years ago, on this day, August 29th, 1981, a week after a front page story “Study finds warming trend that could raise sea levels,” the New York Times editorialised
For years there have been doomsday predictions that burning of fossil fuels might bring about a climatic catastrophe. According to the most alarming theories, fossil fuels release carbon dioxide into the atmosphere where it acts as a greenhouse, blocking the escape of heat into space and thus warming the Earth’s surface. The ice caps could melt, sea levels could rise, agriculture could be disrupted and vast coastal areas might be inundated.
The chief weakness in such theories has been lack of evidence that the greenhouse effect is actually occurring. Though carbon dioxide in the atmosphere has been increasing, temperatures in the Northern Hemisphere have been falling over the last 30 years. But now seven scientists from the National Aeronautics and Space Administration claim to have found evidence that, on a global basis, carbon dioxide has already been warming the Earth for a century. They predict it will produce ”unprecedented” warming in the next century.
Their study finds that the warming predicted by various computer models of the greenhouse effect is consistent with worldwide temperature readings since 1880 – and with observations from Venus and Mars. That gave them confidence that the effect is real and that the models can predict it. Other scientists will challenge their assumptions, methods and conclusions. Some actually believe that the greenhouse effect would be beneficial to world agriculture. Conclusive observations may not be available for decades. But it is significant that a respected team of scientists has now joined the group warning of possible catastrophe.
What, if anything, should be done? The nation seems to be turning to the worst possible fuels in terms of carbon dioxide. It is depending less on solar and nuclear power, which emit no carbon dioxide at all. And among the fossil fuels, it is shifting from natural gas and oil, which emit little carbon dioxide, to coal and synthetic fuels, which emit much more.
The greenhouse effect is still too uncertain to warrant total alteration of energy policy. But this latest study offers fair warning; that such a change may yet be required is no longer unimaginable.
The amount of carbon dioxide in the air was 340ppm. 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 the New York Times, and other papers, had been reporting on carbon dioxide build-up, quite intermittently, since the 1950s.
The specific context was that the Reagan administration was busy attacking science. The New York Times’ science correspondent, Walter Sullivan, had talked to James Hansen, which ended up costing some funding. See this 2007 interview with Hansenhttps://www.pbs.org/wgbh/pages/frontline/hotpolitics/interviews/hansen.html.
Why do you think that your testimony in particular was sensitive in the [Reagan] administration, so much so that OMB would want to shade what you were saying?
Well, I think the reason it was sensitive was the fact that it got attention. In 1981 the paper that we wrote in Science — that predicted that the world would be getting warmer over the 1980s and that by the year 2000 you begin to see loss of sea ice and eventually you have opening of the fabled Northwest Passage — that article was reported on the front page of The New York Times by Walter Sullivan. As a result, we lost our funding from the Department of Energy, because, in that administration, they simply did not want that sort of attention to this problem, because it has big implications for fossil fuel industry.
What I think we can learn from this is that we knew enough and we didn’t act. We can stick that on our tombstone.
What happened next – it would be 1988 before politicians would have to start to pretend to give a damn.
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 29, 1990 – The Australian mining and forestry industries threaten to spit the dummy
August 29, 2005 – Hurricane Katrina
August 29, 2008 – business tells Labor to go softly (Labor then does, obvs).
