Categories
United States of America

March 12, 1970 – After the Goldrush

On this day, March 12, 1970,

Slides that ✨ shine ✨

The amount of carbon dioxide in the air was roughly 324ppm. As of 2026 it is 428ppm, but check here for daily measures. 

The broader context was that the 60s had happened. Everyone was questioning, well, everyone, a few of the young, were questioning the myths that they’d been brought up on. One of those myths was of painless economic progress that would not damage the planet. By the late 60s, air pollution was getting so bad that this was mocked, and also oil pollution, for example, well, the Torrey Canyon, but also the more consequential Santa Barbara oil spill of January, 1969. LINK

The specific context was that people like Neil Young were just tapping into that sense of menace and danger.

Songs on the album were inspired by a screenplay written by Dean Stockwell and Herb Bermann also titled After the Gold Rush. The screenplay’s plot involves an apocalyptic ecological disaster that washes away the Topanga Canyon hippie community. Stockwell, a lifelong friend of Young, was also part of the Topanga Canyon artist culture of the time. Mutual friend Dennis Hopper encouraged Stockwell to write his own screenplay in wake of Hopper’s success with Easy Rider. Stockwell recalls writing the script:

Dennis very strongly urged me to write a screenplay, and he would get it produced. I came back home to Topanga Canyon and wrote After The Gold Rush. Neil was living in Topanga then too, and a copy of it somehow got to him. He had had writer’s block for months, and his record company was after him. And after he read this screenplay, he wrote the After the Gold Rush album in three weeks.[10]

Young recalls coming in contact with the script in his 2012 memoir Waging Heavy Peace:

When I returned to Topanga, Dean Stockwell came by the house with a screenplay called After the Gold Rush. He had co-written it with Herb Bermann and wanted to know if I could do the music for it. I read the screenplay and kept it around for a while. I was writing a lot of songs at the time, and some of them seemed like they would fit right in with this story. The song “After the Gold Rush” was written to go along with the story’s main character as he carried the tree of life through Topanga Canyon to the ocean. One day Dean brought an executive from Universal Studios to my house to meet me. It looked like the project was going to happen, and I thought it would really be a good movie. It was a little off-the-wall and not a normal type of Hollywood story. I was really into it. Apparently the studio wasn’t, because nothing more ever happened.[11]

After the Gold Rush – Wikipedia

In his 2012 biography Young reportedly gave a different explanation of the song’s origin and meaning, describing the inspiration provided by a screenplay of the same name (never produced), which apocalyptically described the last days of California in a catastrophic flood. The screenplay and song’s title referred to what happened in California, a place that took shape due to the Gold Rush. Young eventually concluded that:

After The Gold Rush is an environmental song… I recognize in it now this thread that goes through a lotta my songs that’s this time-travel thing… When I look out the window, the first thing that comes to my mind is the way this place looked a hundred years ago.[4]

After the Gold Rush (song) – Wikipedia

What I think we can learn from this is that this song is an absolute banger. I listen to it all the time

What happened next  Neil Young is still around!

Neil Young – Wikipedia

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: 

March 12, 1974 – Clean Coal advert in the Wall Street Journal

 March 12, 1984 – A Conservative MP worries about carbon dioxide build-up 

March 12, 2023 – the opera ain’t over, but the fat lady is warming up

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United Kingdom United States of America

January 22, 1970- 747

Forty six years ago, on this day, January 22nd,1970

The Boeing 747, the world’s first “jumbo jet”, enters commercial service for launch customer Pan American Airways with its maiden voyage from John F. Kennedy International Airport to London Heathrow Airport.

The amount of carbon dioxide in the air was roughly 324ppm. As of 2026 it is 428ppm, but check here for daily measures. 

The broader context was that by this time, humans have been flying since 1903 and in the post war era, commercial jet liners had become to be “a thing” thanks, in part, to Boeing using money they were given by the Department of Defence to create a cargo plane to prototype – aka the 707. There were also just a lot of surplus aeroplanes and pilots with the necessary skills. So commercial aviation in the 1950s is a good example of the Great Acceleration.

The specific context was that in the 1960s it was assumed that supersonic passenger travel would become a thing. Both JFK and Lyndon Johnson signed off on proposed jetliner funding for them, etc. But it turned out physics and economics had other opinions. There were also environmental issues around, for example, sonic boom and ozone depletion. 

In the midst of this, the 747 was designed as a kind of stop gap. It would be big, not slow, but not fast, and would be rendered obsolete by the coming of not just, you know, Concorde, but the Boeing etc, equivalents.

What I think we can learn from this is that this is sometimes the standby technology that is supposed to be there for a little while. Sticks around because it is good enough. (Kind of a flying QWERTY keyboard – kind of.)

What happened next 

And as we now know, for various reasons, that never happened. And the 747 stayed with us. It continued to be built with minor modifications, like those upturned wings. I think it’s still in use as cargo, but I’m not sure that anyone is still flying them for passengers because they’re heavy and out of date. Nope – there are still, as of Jan 2025, four airlines still using them! Which Airlines Still Fly The Boeing 747 On Its 55th Flight Anniversary?

I travelled on it a lot (never upstairs!) and it did the job. And in some ways, it was elegant. There’s all the airport films in the 70s. There’s this explosion, the bringing down of the Lockerbie plane, and of course, KAL-007

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.

References

Xxx

Also on this day: 

January 22, 1992 – “Greenhouse action will send Australia to the poorhouse”

January 22, 1995 – UK Prime Minister John Major told to implement green taxes on #climate

January 22, 2002 – Exxon and on and on

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On This Day

On this Day: January 7th – Intersectionality, geoengineering, warnings and activism.

Fifty six years ago the activists at “Ecology Action East” were drawing the links and parallels. These days it would be smothered in the language of “climate justice” etc. But back then, they had simpler terms.

  January 7, 1970 – “Ecology Action East” is “intersectional”

Twenty two years ago today, scientists think we might be able to use our technology to avoid the worst. What could go wrong?

January 7, 2004 – geoengineering our way outa trouble?

Twenty years ago today, the Australian Bureau of Meteorology, with a basic website, warn of trouble ahead.

January 7, 2006 – Bureau of Meteorology with another climate warning

Thirteen years ago today, an activist takes a chance.  (See interview here.)

January 7, 2013 – Australian climate activist pretends to be ANZ bank, with spectacular results  

Are there other climate-related events that happened on this day that you think deserve a shout out? If so, let me know.

As ever, invite me on your podcast, etc etc.

Categories
United States of America

November 1, 1970 – Ayn Rand fulminates incorrectly, for the first time ever

Fifty five years ago, on this day, November 1st, 1970, noted fruitcake Ayn Rand gives a speech in Boston about Anti-Industrial Revolution. Name checks C02 build-up, to dismiss it as a possible threat. Typically Objective of her….

The amount of carbon dioxide in the air was 325ppm. 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 Ayn Rand was a swivel-eyed loon, who wrote interminable repetitive “novels”. And was, oh, whatever.

The specific context was Ayn Rand was a swivel-eyed loon with no grasp of history or ecology. It was 1970 and people were beginning to worry about pollution’s long-term impacts.

What I think we can learn from this – Rand’s views, such as they are, collided with reality. In her mind, she won.

What happened next

Rand lived on.  And took the Social Security she despised.

Rand’s swivel-eyed loon views have made her popular with the Silicon Valley tech-bros. Obvs. She matters, sadly.

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.

References

Mason, B. 1972  Ayn Rand vs Ecology. Reason Magazine, August

https://reason.com/1972/08/01/ayn-rand-vs-the-ecology-moveme

Also on this day: 

November 1, 1959 – M1 motorway section opened

November 1, 1974 – UK civil servants writing to each other on “Climatology”

November 1, 1975 – Stephen Schneider tries to clear up the “Carbon Dioxide Climate Confusion.”

November 1988 – Australian Mining Journal says C02 is a Good Thing

November 1, 1989 – Senior Australian politician talks on “Industry and Environment”

November 1, 1989 – “Greenhouse Action Australia” launches…

November 1, 2004 – Brilliant “Balance as Bias” article published 

Categories
Energy United States of America

October 20, 1970 – Memo about energy research required because power sector too fragmented

Fifty five years ago, on this day, October 20th, 1970, 

Dr Edward David memo to Nixon about federal government funding for energy research being necessary because power industry too fragmented. 

See Speth Ch 1 of They Knew

This isn’t the memo (I think), but gives the same flavour.

“On the other hand, in some cases projects are so large and the industry involved so fragmented that they are really unable to come to grips with big, expensive efforts where the risks are high and the payoff far in the future. Furthermore, many industries don’t have the R&D tradition. The tradition of R&D and the peculiar culture that surrounds it are necessary for its existence and its effectiveness. Some industries have not cultivated and have never had this tradition. It’s difficult and, indeed, almost impossible for them to begin R&D on a large scale successfully and without great waste of resources. In the next few years the nation is going to be faced with many problems concerning government action in certain R&D fields. The President decides whether a development is potentially so important that if industry doesn’t pick it up, then the Government must. He has made a number of those judgments, particularly in the environmental area. And we are doing a great deal of environmental research, for example, the unconventional automobile propulsion work at the National Air Pollution Control Administration. The question arises: Why should the Government be developing unconventional automobile engines why not the industry itself? Well, there is a delicate judgment there as to whether the Government ought to be doing such work. In this instance, we had judgments from many people both in and out of the industry that if the Government augmented the work, it would go forward a great deal more rapidly. I don’t see us taking over automotive R&D, however.”

Source – ED053968.pdf

The amount of carbon dioxide in the air was 326ppm. As of 2025, when this post was published, it is 425ppm. 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 there were (as always) fierce debates going on about the “energy mix” (coal, nuclear, oil etc etc) for the US. Each had its proponents and opponents, with their varying tactics. But doing any sort of co-ordination/planning or even research is problematic in fragmented/privately owned situations.

The specific context was Nixon’s government was aware of climate change (Moynihan memo and response) and had been warned about it in the August 1970 CEQ report. But it was not high on the agenda.

What I think we can learn from this – that fragmented is not good, but centralised isn’t perfect either. Look at the UK, which at this time had the Central Electricity Generating Board, an “opaque behemoth.” 

Whatever system you have, you need an active/engaged/irrepressible civil society, of which social movements are a subset. Absent that, some brand of Bolshevik/Hayekian is going to pick your pocket and loot your future.

What happened next – the Bolsheviks and Hayekians continued to pick pockets and loot futures. And the emissions kept climbing, regardless of various “eco-awakenings.”

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: 

October 20, 1977 – Australian petition on solar energy and carbon dioxide build-up…

October 20, 1983 – The Australian says “‘Dire consequences’ in global warm-up”. 

October 20, 1997 – Greenpeace tries to give John Howard solar panels

October 20, 2001 – Greenpeace nails Howard government over Kyoto and general climate assholery – All Our Yesterdays

Categories
Australia

September 26, 1970 – Medical Journal of Australia

Fifty five years ago, on this day, September 26th, 1970, the Medical Journal of Australia runs an article on “Notes on Some Aspects of Pollution”.

“The carbon dioxide content of the atmosphere has increased by 14% since 1960. If it continues to build up at anything like that rate, it could, by the end of the century, form a blanket around the earth, raising the temperature appreciably, turning the tropics into hothouses, making the temperate zones tropical, and beginning to melt the polar ice caps. If the trend continued until the ice caps were completely melted, all maritime cities would be drowned, and the surf that now beats on Bondi beach would be beating on the lower slopes of the Blue Mountains.”

26 Sep 1970 Dark, medical journal of australia more on him here – https://bluemlocalstudies.wordpress.com/2011/08/31/dr-eric-payton-dark/

The amount of carbon dioxide in the air was 325ppm. 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 there was a global ecological awareness/concern springing up.

The specific context was from late 1969 carbon dioxide build up was mentioned among all the other dangers facing us. It had been on ABC radio in September 1969, and was popping up in articles like these.

What I think we can learn from this is that we’ve had warnings about carbon dioxide build-up for a lot longer than most people realise.

What happened next: The warnings were, of course, ignored. From 1988 onwards, there have been various games of kayfabe.

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 26, 1969 – Death on All Fronts, says Allen Ginsberg – All Our Yesterdays

September 26, 1989 – Australian Union body tries to add green to red…

September 26, 1998 – Howard decision only to ratify Kyoto if US does leaks.

September 26, 2007 – GetUp spoof Howard’s climate greenwash – All Our Yesterdays

Categories
United Kingdom

September 24, 1970 – driving around London….

Fifty five years ago, on this day, September 24th, 1970,

“The British Society for Social Responsibility in Science has formed an Art and Technology group…. the first demonstration sponsored by the group coincided with the opening of the Arts Council’s international KINETICS exhibition 24 Sept. The work MOBILE was presented to critics and spectators and driven around London. It consists of a box covered with PVC, and mounted on top of a car. The box contained meat, flowers and vegetables. A tube fed the exhaust of the car into the box, with stunning visual (and chemical) results. The group hopes that the idea will be taken up by people around the world.”

The amount of carbon dioxide in the air was 325ppm. 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 from about 1969 British scientists and activists were starting to link local and global air pollution (and pollution more broadly).

The specific context was that London’s air seemed much cleaner thanks to the Clean Air Act of 1956 – and was, in some ways. In other ways, not so much…

What I think we can learn from this is that cars have been a catastrophic invention, on ecological, social, psychological levels.  God help us all.

What happened next

By 1973 the eco-wave was basically gone, and wouldn’t be back until the late 1980s.  These waves, they come and go…

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.

See also – Kinetics. The record of an exhibition. Hayward Gallery 1970 : WestminsterResearch

Also on this day: 

 September 24, 1989 – Petra Kelly disses the Australian Prime Minister

September 24, 1991 – Australian denialist gives “Greenhouse Myths” seminar.

September 24, 1993 – A museum exhibition travels to Pittsburgh

September 24, 2006 – “Plane Stupid” holds first action, with “Sermon on the Taxiway” at East Midlands Airport

Categories
Australia

August 27, 1970 – Sydney Town Hall packed with greenies wanting action.

Fifty-five years ago, on this day, August 27th, 1970, there was a big public meeting in Sydney, with the Great and the Good and green hoi polloi. Read this account, from Hansard, and weep.

Senator MULVIHILL: New South Wales

“I suppose that one of the most effective testimonials that could be directed to the Committee was given at a public meeting held at the Sydney Town Hall at 8 p.m. on 27 August under the chairmanship of Sir Garfield Barwick, Chief Justice of the High Court and Chairman of the Australian Conservation Foundation. This was a very representative gathering and it adopted a 5-point recommendation which endorsed the recommendations of the Senate Select Committee on Water Pollution. As a matter of fact the recommendation went further and asked for the establishment of a national environmental council. Our Committee looked beyond the area which could be dealt with by a national water commission, but I think it will be seen that the recommendation which came from this public meeting in Sydney virtually endorses the contents of our report. With the concurrence of honourable senators I incorporate that recommendation in Hansard.

That this representative meeting of citizens, held at the Sydney Town Hall on August 27th, 1970, endorses the view that –

Water pollution is only part of the broader problem of the pollution which is threatening our environment.

It therefore also endorses the recommendations of the Senate Select Committee on Water pollution that “the prevention and abatement of pollution requires a comprehensive approach involving land use planning, sociological and ecological assessments, and the approach of specialist water pollution technology”, and agrees with that Committee that such a comprehensive approach to the problem should be the objective of all levels of Government.

That the Water Pollution Bill in its present form is only a piecemeal approach to the problem of environmental pollution in this State, and for this reason is of the opinion that the Bill should be withdrawn, and that the initiation of effective measures to control Water Pollution should become the responsibility of the proposed single pollution authority to be established by the State Government.

i. That the proposed Pollution Control Authority should be vested with executive powers to ensure effective control of all forms of pollution, the policing of all regulations, and the prosecution of offenders,

The powers and resources to undertake a continuous programme of research and education on environmental problems.

This representative meeting also believes that in the interest of the environment, and the co-ordination of the activities of all the States in the field of pollution, a National Environment Council should be established by the Commonwealth Government.

Most of the States have attempted to introduce some type of legislation. Our Committee was particularly interested in some of the experiments in the United States and Canada by some of the regional authorities. I know that each State has its own particular problems but, speaking for myself, I was tremendously impressed with the way in which the Swan River Conservation Board had gone about its activities in Western Australia. I can say of metropolitan Sydney that people in local government, and particularly those in an organisation known as the Sydney HarbourParramatta River Anti-Pollution Committee, which represents 16 riverside and harbourside councils, are tremendously impressed with the appendix to our report which dealt with the Swan River Conservation Board.

One lesson which we have learnt and which we must apply to any future government activity, particularly in the field of pollution but also in so many other areas, is that we must be able to feel that the various tiers of government are making some contribution. Possibly all of us, although we are members of the Commonwealth Parliament, realise that the day has gone when the Commonwealth can issue directions from Canberra about what the States shall do. We must have this teamwork of the 3-tier system, and it is for that reason that we indicated that regional authorities also should become involved in this problem. I have never been one who has. held the Utopian concept that the Commonwealth can always pay the piper. I think the contrary is the case. If the Commonwealth is going to make sizeable amounts of finance available to combat various facets of water pollution it should lay down water standards. That is what the Committee had in mind in framing all its recommendations. When we talk to people like Alderman Parkinson, who is the Mayor of Mosman, and Alderman Wild, the Mayor of Parramatta – I instance these 2 gentlemen as extremely efficient mayors who are already concerned in problems of water pollution – we find that they want to be able to help but that they realise that the resources to help are beyond the means of their respective councils. This brings me to a consideration of all the things which are set out in our report and other facets with which….

The amount of carbon dioxide in the air was 325ppm. 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 there had been an “environmental turn” in 1969 – people waking up to water pollution, air pollution and other forms of pollution.

What I think we can learn from this is that people knew what the score was before most of us were born. But knowing about a problem and creating robust organisations to force corporations and states (governments, bureaucracies) to do anything meaningful about it, well those are different things, now aren’t they?

What happened next – the Australian Conservation Foundation got taken over by “radicals” in the early 1970s. “Pollution” became a normalised thing, one of many to worry about. Slowly, we drowned in our own effluents, and set fire to the planet. Ooops.

The specific context was that two Senate Select Committee reports – one on Air Pollution and one on Water Pollution – had come out. Books were being published, magazines launching, groups like “Ecology Action” getting going in June 1971. Elite types making doomsday pronouncements (like this guy in Adelaide).

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 27, 1859 – The Oil Age begins. UPDATED TO BE a) accurate b) less Eurocentric

 August 27, 1962 – Mariner 2 sets off for Venus

August 27, 1993 – international negotiations edge forward

August 27, 2013 – absurd claim of Nobel-prize winners’ support for Liberal non-policy is debunked.

Categories
United Kingdom

July 21, 1970 – Carol Mather talks climate in the House of Commons

Fifty five years ago, on this day, July 21st, 1970, Carol Mather, Conservative MP for Esher has this to say – 

The signs are very clear for all to see, and confirmation of these signs appears regularly in the newspapers. I will give only a few examples. It is said that jet aircraft landing and taking off in New York deposit 36 million tons of carbon dioxide into the air each year. This has a “greenhouse” effect because it allows the sun’s rays to come down but prevents them from escaping into the atmosphere. …

However, if this goes on, it is thought that by the end of the century the temperature of the earth could be raised by two degrees Centigrade, and this would begin to melt the ice caps. Water generated by this melting process could, they say, be sufficient in mass to flood many cities. But all is not lost. We are pumping so much grit into the air that the sun’s rays are not able to get through, and they are deflected back into the atmosphere. The ice-cap thus is catching up with us.

https://hansard.parliament.uk/Commons/1970-07-21/debates/44081be8-99e7-4a01-91a2-691347ccb5c4/EnvironmentalPollution?highlight=%22carbon%20dioxide%22%20atmosphere#contribution-a0bb4299-de7e-4649-ab16-32a903824711

The amount of carbon dioxide in the air was 326ppm. 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 from the mid-1960s onwards, more and more articles and books were appearing that at least referenced the possibility of global warming from carbon dioxide build-up (at the same time, there were also fears of an induced ice age). Mather was one of the first parliamentarians to raise the issue.

The specific context was that by 1970 newspapers were running regular “pollution” columns, features editorials. Carbon dioxide was not mentioned in all of them, or even, in fact, a majority. But it was cropping up… The issue had even been flagged in the first Environment White Paper, released in late May 1970.

What I think we can learn from this is that we have known that there might be trouble ahead for a lot longer than most people think. Well informed people might guess “1988”, and that indeed was mostly my impression before I started the All Our Yesterdays project. Truth is, it was on the radar for almost 20 years before that.

What happened next – the issue got hammered a month later by the Chief Alkali Inspector. It was on the agenda through the 1970s, but it was only in 1988 that indifference, complacency and resistance was overcome, and that largely due to political opportunism. Ah, what a species!

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 21, 1991 – “Greenhouse Action for the 90s” conference leads to “The Melbourne Declaration”

July 21, 2001 – Sleeping protestors beaten by Italian Police

Categories
United States of America

May 20, 1970 – NUC Symposium on Environmental Preservation

Fifty five years ago, on this day, May 20th, 1970, the Navy Undersea Research and Development Centre (NUC) held a symposium…

“If the greenhouse effect manifests itself as a result of continued burning of fossil fuels, there is little doubt that it would be catastrophic.”

NUC Symposium on Environmental Preservation, 20-21 May, 1970 https://babel.hathitrust.org/cgi/pt?id=uc1.31822031466642&view=1up&seq=7&skin=2021&q1=greenhouse

The amount of carbon dioxide in the air was roughly 325ppm. As of 2025 it is 430ppm, but check here for daily measures. 

The context was that the carbon dioxide build-up issue had been steadily growing, especially since the 1965 message to Congress by Lyndon Johnson and the report at the end of the same year by the PSAC.

What I think we can learn from this is that by 1970, carbon dioxide as an issue to keep a serious eye on was becoming embedded in scientific circles. What a species we are.

What happened next.  By the late 1970s the significant uncertainties were gone. But the elite politicians did not act. In 1988 the issue broke through.

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: 

May 20, 1959 Times of India letter about Teller and CO2 – All Our Yesterdays

May 20, 1960 – Spengler suggests decline of the … whole shebang

May 20, 1976 – UK World Trends committee chair worries about the weather… – All Our Yesterdays

May 20, 1977 – Australian Prime Minister says “coal, not solar” is the future

May 20, 1990 – “Ironing out the Greenhouse Effect”

May 20, 2010 – climategate keeps delivering for denialist