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Science Scientists

February 20, 1979 “An Assessment of the Possible Future Climatic Impact of Carbon Dioxide Increases”

Forty seven years ago, on this day, February 20, 1979 the following was published – 

“An Assessment of the Possible Future Climatic Impact of Carbon Dioxide Increases Based on a Coupled One-Dimensional Atmospheric-Oceanic Model” Hunt and Wells

https://doi.org/10.1029/JC084iC02p00787

A radiative-convective equilibrium model of the atmosphere has been coupled with a mixed layer model of the ocean to investigate the response of this one-dimensional system to increasing carbon dioxide amounts in the atmosphere. For global mean conditions a surface temperature rise of about 2°K was obtained for a doubling of the carbon dioxide amount, in reasonable agreement with the commonly accepted results of Manabe and Wetherald. This temperature rise was essentially invariant with season and indicates that including a shallow (300 m) ocean slab in this problem does not basically alter previous assessments. While the mixed layer depth of the ocean was only very slightly changed by the temperature increase, which extended throughout the depth of the mixed layer, the impact of this increase on the overall behavior of the ocean warrants further study. A calculation was also made of the temporal variation of the sea surface temperature for three possible carbon dioxide growth rates starting from an initial carbon dioxide content of 300 ppm. This indicated that the thermal inertia of the slab ocean provides a time lag of 8 years in the sea surface temperature response compared to a land situation. This is not considered to be of great significance as regards the likely future climatic impact of carbon dioxide increase.

The amount of carbon dioxide in the air was roughly 337ppm. As of 2026 it is 428ppm, but check here for daily measures. 

The broader context was the idea that carbon dioxide build-up could warm the planet goes back to Arrhenius in 1895. The idea got nudged forward by Guy Callendar in 1938 onwards, and then pushed to the next level by Gilbert Plass in 1953.

The specific context was that by the late 1970s, it was broadly agreed among the relevant scientific community that there was serious trouble ahead, and this is laid out in painstaking and painful detail in William Barbat’s CO2 Newsletter, which I am releasing through the course of 2026.

What I think we can learn from this is that information on its own, the truth on its own, will not set you free.

What happened next: More studies, more emissions, more concentrations, spasms of protest, but no action worthy of the name to actually bend the emissions curve down, and certainly reducing atmospheric concentrations of CO2 via various so called draw down projects is a complete fucking fantasy.

And I didn’t have kids because the second half of the 21st Century is going to make the first half of the 20th look like a golden age of peace, love and understanding. But I’m standing here narrating this, looking at sparrows and finches and things and I guess it’s my job just to enjoy it for as long as I can. I suppose.

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: 

February 20, 1966 – US Senators told about carbon build-up by physicist

February 20, 1970 – South Australian premier sets up an Environment Committee

February 20, 2017 “Clean Coal” money being spent on PR

Categories
CO2 Newsletter

“Human history becomes more and more a race between education and catastrophe” – C02 Newsletter, Vol. 1, no. 2 editorial

The eighteen issues of the CO2 Newsletter, published between 1979 and 1982 by American geologist William Barbat are heart-breakers. Here, laid out in plain language, buttressed by the latest research, were almost all of our dilemmas. Alongside publishing the 18 issues through the course of the year, and inviting various people to write commentaries, I’ll be putting up the editorials, selections from the “excerpts of recent reports” and at least one of the deeply-researched articles Barbat wrote per issue (often there were two).

First up, the editorial from Vol 1. no. 2, December 1979.

“Human history becomes more and more a race between education and catastrophe” – H.G. Wells

Editorial

The CO2 Newsletter’s editorial goals are to aid enlightenment on the CO2 problem, to promote constructive and timely solutions, to reduce disagreement and to encourage cooperation.

The many persons who continue to send articles are to be thanked for their contribution toward enlightenment. Ideas for constructive solutions are just now being formed as the CO2 issue emerges from scientific laboratories to reach the political and industrial worlds. While scientist disagreement is declining with the acquisition of new data, much disagreement exists in the political world over what national energy policy should be and what should be the role of industrial establishments in carrying it out. The revolutionary energy policies which are now being considered by the scientific community to bring the CO2 buildup to an early halt would require much more cooperation between government and business than appears to exist. Unwarranted hostility and intolerance directed towards energy companies for political gain make it difficult to address the CO2 problem effectively and early.

American businesses have not been wholly oblivious to the CO2 problem in the past. In a well-researched comprehensive report on the environmental aspects of energy production published nearly a decade ago (May 1970) in the Westinghouse Engineer James H. Wright noted that the CO2 buildup should be given consideration as a serious environmental concern.

Corporations which have diverted income from oil revenues to the production of nuclear fuels have come under political attack for attempting to monopolize energy production, when that is the least likely motive. The costly Barnwell nuclear-fuel reprocessing plant has not been allowed to operate after apparently receiving governmental approval while the investments were being made. Well-meaning detractors have been able to delay construction of nuclear plants, and rate commissions often have shifted the heavy financial burden of the delays solely to the utility owners

At this stage, recriminations would be counterproductive. We would be wise to learn from past mistakes and close ranks to prepare for the difficult task of halting the CO2 buildup.

Citation: Barbat, W. (1979) “Editorial” CO2 Newsletter, Vol. 1, No 2, p. 2

Further reading and viewing

Barnwell – the song by Gil Scott-Heron!

Gil Scott Heron – South Carolina (Barnwell)

Wright, J. 1970. Electric Power Generation and the Environment. Westinghouse Engineer. May, pp.66-80. Westinghouse-Engineer-1970-05.pdf

Categories
United States of America

1979 report warns of warming world (CO2 Newsletter Vol. 1, no. 2)

The carbon dioxide issue attracted more and more attention from scientists through the 1970s. They worried that plans to expand energy production using fossil fuels would lead to catastrophe. They (and some far-sighted politicians) began to lobby President Carter, and in July 1977 Carter’s Science Advisor Frank Press wrote a memo to Carter about it. But Carter as trying to boost the “synfuels” (synthetic fuels, basically turning coal into liquid fuel) as a way of reducing vulnerability to price shocks.

In early 1979 Press asked top scientists to look at whether the CO2 problem was indeed a real issue to worry about. An ad hoc panel, chaired by Jule Charney (a very big fish), met for a couple of weeks in July, and then released its report, under the title Carbon Dioxide and Climate: A Scientific Assessment. In October 1979 William Barbat released the first issue of his CO2 Newsletter. The lead article on the second issue’s front page was about the Charney report.

Report to president’s adviser: CO2 buildup can change climate

The introduction of the CO2 issue into U.S. energy policy moved a step closer in November as a scientific advisory panel reported “If the CO2 concentration of the atmosphere is indeed doubled… our best estimate is that changes in global average temperature of the order of 3 degrees C will occur and that this will be accompanied by significant changes in regional climatic patterns.”

At the request of Frank Press, science adviser to the President, the National Academy of Sciences had convened this group of experts who had little previous involvement in CO2 studies to make an impartial examination of the validity of CO2 forecasts.

The group stated in its report that the basic model relating CO2 to global warming is correct, so far as they can see. “We have tried but have been unable to find any overlooked or underestimated physical effects that could reduce the currently estimated global warming due to a doubling of atmospheric CO2 to negligible proportions or reverse them altogether.”

The report is summarized in Science 23 November 1979 under the title “CO2 in Climate: Gloomsday Predictions Have No Fault.” The panel was chaired by Jule G. Charney, MIT.

What happened next?

This is the famous Charney Report – interestingly, it didn’t stop Frank Press trying to chide Gus Speth into silence the following year.  April 14, 1980 – Carter’s scientist, Frank Press, pushes back against CEQ report

Citations

Barbat, W. (1979) “Report to President’s adviser: CO2 buildup can change the climate.” CO2 Newsletter, Vol. 1, No 2, p. 1

Wade, N. 1979. CO2 in Climate: Gloomsday Predictions Have No Fault. Science, Nov 23.Vol 206, Issue 4421 pp. 912-913 DOI: 10.1126/science.206.4421.912.b

Categories
CO2 Newsletter

CO2 Newsletter Vol. 1, no. 2 – “the CO2 issue emerges from scientific laboratories to reach the political and industrial worlds”

By December 1979 the editor of the CO2 Newsletter, American geologist William Barbat, was on a roll, and optimistic. In his editorial for the second Newsletter whe wrote

“The many persons who continue to send articles are to be thanked for their contribution toward enlightenment. Ideas for constructive solutions are just now being formed as the CO2 issue emerges from scientific laboratories to reach the political and industrial worlds. While scientist disagreement is declining with the acquisition of new data, much disagreement exists in the political world over what national energy policy should be and what should be the role of industrial establishments in carrying it out.”

The issue contains feedback from readers of the first issue, including scientists and politicians. There’s a one page article on deforestation, a whole lot of “excerpts from recent reports”

In a closing article titled “Energy alternatives to meet projected demands,” Barbat made the crucial point that

“… the CO2 problem has no outspoken champions and no legislative lobby. Nor does the CO2 issue serve conveniently as a rallying cause for activism.

I will be creating separate posts about some of the contents of this issue. Meanwhile you can download the pdf (and see plain text) here.

Categories
Activism

November 24, 1979 – Anti-nuclear campaign launch

Forty six years ago, on this day, November 24th, 1979 an Anti Nuclear campaign launch – see  two pager about this in the London Greenpeace

The amount of carbon dioxide in the air was 337ppm. 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 the 1970s saw a huge growth in anti-nuclear power movements.

The specific context was – Thatcher had come to power, and was as gung-ho for nuclear as her predecessors (because, well, there’s a permanent pro-nuclear establishment, isn’t there?).

What I think we can learn from this – smart people have been writing about the problems faced by social movements/NGOs for a long time, and we could do worse than listen and learn. But we won’t do that, because it requires time, access to materials, courage, curiosity and humility.

What happened next – the coalition didn’t really last, as I suspect many knew it wouldn’t.

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: 

November 24, 1971 – I’ve seen the future baby, it is murder (Meadows explaining Limits to Growth at US Embassy) – All Our Yesterdays

November 24, 1977 – Canberra Times reports “all coal” plan would “flood US cities”

November 24, 1992 – I’ve seen the future baby, it is murder (Cohen’s “The Future” released) 

November 24, 2009 – the Climate War in Australia goes kinetic…

Categories
Coal Germany

November 15, 1979 – the FT reports on German concerns about fossil fuel effects.

Forty six years ago, on this day, November 15th, 1979, the FT reports

“West Germany is to set up a study which could have a serious impact on its future energy policies, which at present stress the central importance of coal. The investigation is into the effects of carbon dioxide on the atmosphere.”

Boyes, Roger, 1979. Germany Probes Fossil Fuel Effects. Financial Times, November 15, p. 2

The amount of carbon dioxide in the air was 336ppm. 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 Germans had been worrying about carbon dioxide for a little while by now (Hermann Flohn’s influence, possibly?).

The specific context was by the mid-1970s meetings were being held at IIASA and elsewhere about the problem. German scientists, and some politicians, were on the case. The first World Climate Conference, hosted by the WMO, had taken place in February 1979 in Geneva. In June 1979 Helmut Schmidt gave an interview to Time magazine where he explicitly mentioned carbon dioxide build-up. The G7 meeting (in Tokyo) had namechecked the issue

What I think we can learn from this – plenty of people knew. But what are you going to do if you run on coal and nukes?

What happened next – the emissions kept climbing, of course. At the G7 in Bonn in 1985, the climate issue got namechecked again.

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: 

November 15, 1958 – Academic Paper on “Changes in Carbon Dioxide Content of Atmosphere and Sea Due to Fossil Fuel Combustion” submitted

November 15, 1983 – “Energy Futures and Carbon Dioxide” report…

November 15, 2004 – Bob Carr on Lateline- “no other developed country will be as severely affected by global warming as Australia.” – All Our Yesterdays

Categories
United States of America

September 6, 1979 – Exxon supports American Petroleum Institute on “do nothing” about climate

Forty six years ago, on this day, September 6th, 1979, the American Petroleum Institute’s “do nothing” suggestion was getting some love from RJ Campion, Exxon’s climate scientist.

1979 Exxon Memo about API’s CO2 Research Strategy – Climate Files

The amount of carbon dioxide in the air was 336ppm. 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 in the late 1970s scientists – both employed by the state and some of the oil majors, had a pretty good idea what was coming….

The specific context was – well, here’s a passage from Ben Franta’s PhD

“Although Exxon’s research program was notable for its sophistication, the company wasn’t alone in monitoring climate science. By 1979, the API had formed a task force focused on climate change composed of representatives from the major oil companies, including Exxon’s Henry Shaw. Initially named the CO2 and Climate Task Force and in 1980 renamed the Climate and Energy Task Force, the group’s internal memos show that much like Exxon, it viewed climate research as a strategic tool to influence public perception and government regulation in favor of the fossil fuel industry.

One of the earliest known memos regarding the task force, from 1979 and written by Exxon scientist Raymond Campion, recommended the group not pursue original climate change research, because “the industry’s credibility on such issues is not high at the present time, and should an API study indicate no serious CO2 problems, the results would be greeted with skepticism.”

What I think we can learn from this is that there were paths not taken. Don’t get me wrong – even if we’d taken serious action in the late 1970s, there was still going to be serious trouble ahead. But now, well….

What happened next: The Reagan administration came in and it would not be until the very end of that shitty period – in 1988 – that the climate problem finally broke through and became an issue.

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: 

September 6, 1991 – Titan has a greenhouse effect… – All Our Yesterdays

September 6, 2000 – Emission scheme defeated, it’s time for a gloating press release… #Climate #auspol

September 6, 2007 – “The Future of Coal under Cap and Trade” hearings…

Categories
Science

August 4, 1978 – “A Terminal Mesozoic ‘Greenhouse’: Lessons from the Past”

Forty seven years ago, on this day, August 4th, 1978, Science publishes

A Terminal Mesozoic “Greenhouse”: Lessons from the Past

Dewey M. McLean

The late Mesozoic rock and life records implicate short-term (up to 105 to 106 years) global warming resulting from carbon dioxide—induced “greenhouse” conditions in the late Maestrichtian extinctions that terminated the Mesozoic Era. Oxygen isotope data from marine microfossils suggest late Mesozoic climatic cooling into middle Maestrichtian, and warming thereafter into the Cenozoic. Animals adapting to climatic cooling could not adapt to sudden warming. Small calcareous marine organisms would have suffered solution effects of carbon dioxide—enriched waters; animals dependent upon them for food would also have been affected. The widespread terrestrial tropical floras would likely not have reflected effects of a slight climatic warming. In late Mesozoic, the deep oceanic waters may have been triggered into releasing vast amounts of carbon dioxide into the atmosphere in a chain reaction of climatic warming and carbon dioxide expulsion. These conditions may be duplicated by human combustion of the fossil fuels and by forest clearing.

The amount of carbon dioxide in the air was 335ppm. 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 1970s was the decade when the basic science became “settled.” For what that turned out to be worth!

The specific context was that by this time the World Meteorological Organisation had said it would hold the First World Climate Conference, in Geneva, in February 1979.

What I think we can learn from this is that information on its own is not worth a bucket of warm spit.

What happened next. The scientists tried to interest the politicians. The politicians didn’t listen. In 1988 the politicians began to pretend to listen. Meanwhile, the emissions just went up and up. 

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 4, 1988 – Hawke Cabinet asks for “what can we do?” report on climate.

August 4, 2004 – Australian farmers nervous about climate change. Ignored – All Our Yesterdays

August 4, 2008 – Police pepper spray #climate campers

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Science Scientists United States of America

July 23, 1979 – Charney Report meeting begins

Forty six years ago, on this day, July 23rd, 

1979 Ad Hoc Study Group on C02 and Climate at Woods Hole from 23 to 27 “Charney Report”

http://web.atmos.ucla.edu/~brianpm/download/charney_report.pdf

The amount of carbon dioxide in the air was 337ppm. 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 through the 1970s scientists working on climatology, pollution, energy, food were starting to study carbon dioxide build-ups effects and saying in effect “er, we may have a serious problem on our hands”. This was true especially in (parts of) Europe and the US.

The specific context was that the Carter Administration was rather taken with shale oil as a way of securing “energy independence”. This raised the question of CO2 build-up to serious concern, and Jule Charney was asked to come up with a “definitive” answer to whether it was something to take seriously.

What I think we can learn from this – sometimes an issue will be “entrained” because of another one (in fact, that is surely the norm, but we struggle to understand it). In this case, an “environmental” issue gets a boost because of energy policy debates….

What happened next Charney et al basically said “there’s no reason to believe that a doubling in atmospheric concentrations of carbon dioxide – which are likely by 2050 or so – will do anything other than result in an increase of global average temperatures of somewhere between 1.5 and 3.5 degrees.”

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: 

July 23, 1979 – Charney Report people meet – will conclude “yep, global warming is ‘A Thing’.”

July 23, 1987 – Calvin (and Hobbes) versus climate change!

July 23, 1998 – denialists stopping climate action. Again.

Categories
Energy United Kingdom United States of America

July 19, 1979 – “a political view on C02”

Forty six years ago, on this day, July 19th, 1979, 

“The increase in atmospheric carbon dioxide may be accelerated by President Carter’s new-found enthusiasm for synthetic fuel. But the atmospheric ‘crisis’ may come too slowly to bother the politicians, argues Michael Glantz.”

Glantz, M. A political view of CO2. Nature 280, 189–190 (1979). https://doi.org/10.1038/280189a0

A political view of CO2 | Nature

The amount of carbon dioxide in the air was 337ppm. 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 through the 1970s scientists got more interested in – and alarmed about – the build-up of carbon dioxide in the atmosphere. In February 1979 the First World Climate Conference had happened in Geneva.

The specific context was that in response to the second oil shock, plans for the US to make shale oil were on the front burner. People like Glantz were part of the move to say “whoa, before you get moving on this, have you thought about the carbon dioxide implications?”

What I think we can learn from this is that by the late 1970s, a moderately well-informed person would have known that there was a better-than-trivial chance of serious trouble ahead.

What happened next is that the better-than-trivial chance happened. Oh well.

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: 

July 19, 1968 – “man has already rendered the temperature equilibrium of the globe more unstable.”

July 19, 1976 – , Scientist warns “ “If we’re still rolling along on fossil fuels by the end of the century, then we’ve had it.”