@GuyCallendar

Guy Stewart Callendar (1898 - 1964) | Discovered global warming in 1938 & suggested that increase in atmospheric CO₂ was partly responsible.

 UK, until untimely death
dx.doi.org/10.1002/qj.49706427503
Joined January 2014
  • Tweets484
  • Following314
  • Followers1.6K
61Media
If you want to learn more about Guy Callendar's many contributions to climate science then come over to BlueSky: bsky.app/profile/guycallenda…
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Ed Hawkins@ed_hawkins17 Apr 2024
A new article about @GuyCallendar and how his ideas did not receive widespread acceptance for several decades. nautil.us/the-part-time-clim…

Guy Callendar, the Engineer Who Discovered Human-Caused Global Warming

A humble steam engineer put humans in the driver’s seat.

nautil.us
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Ed Hawkins@ed_hawkins17 Apr 2024
86 years In April 1938, @GuyCallendar published his seminal paper showing that Earth’s land areas had warmed over the previous 50 years. He also suggested that man-made CO₂ emissions had caused around half of the observed warming. 86 years ago. rmets.onlinelibrary.wiley.co…
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November 19, 1960 – Guy Callendar gives advice on unpopularity of C02 theory of climate change. allouryesterdays.info/2023/1…
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Richard Allan@rpallanuk19 Sep 2023
Replying to @ClimateDann @StottPeter
Well, @GuyCallendar did some basic but pretty innovative detection & attribution in his day! – at Reading, England
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I like this line: “And as long ago as 1938, the burning of fossil fuels was linked to the observed rise in both carbon dioxide levels and global temperatures.”
Ed Hawkins@ed_hawkins2 Aug 2023
The demand for no new licenses for UK coal, oil and gas projects is consistent with the science underpinning the international agreements that the UK has signed. theconversation.com/science-…

Science shows the severe climate consequences of new fossil fuel extraction

More than a century of research shows that burning fossil fuels warms the climate – that’s exactly why granting new North Sea oil and gas licenses is a bad idea.

theconversation.com
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Guy Callendar retweeted
Guy Callendar@GuyCallendar1 Aug 2023
Hi @RishiSunak - did you know that an English engineer (yours truly) first demonstrated in 1938 that burning fossil fuels was causing temperatures to rise all across the world? Might be relevant today.
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Hi @RishiSunak - did you know that an English engineer (yours truly) first demonstrated in 1938 that burning fossil fuels was causing temperatures to rise all across the world? Might be relevant today.
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Replying to @ed_hawkins @GuyCallendar
I sometimes show this in my public talks. It is important to talk about the history of climate science. Callendar was able to compute a contribution from the CO2 effect, because Arrhenius and others had already calculated how sensitive global temperature is to CO2 changes.
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Ed Hawkins@ed_hawkins31 Jul 2023
Since the 1860s the science community has understood that adding more carbon dioxide & other greenhouse gases to the atmosphere would warm the climate. In 1938, @GuyCallendar first linked the burning of fossil fuels to the observed rise in CO₂ levels & global temperatures.
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Ed Hawkins@ed_hawkins19 Apr 2023
It is: - more than 200 years since Fourier first made the analogy that the atmosphere behaves like a greenhouse - more than 150 years since Foote & Tyndall identified the main greenhouse gases - 85 years since Callendar showed the planet was warming & caused by increases in CO₂
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On the issue of our #ClimateEmergency, I always say "blah, blah, @TheGreenParty has been saying this for 50 years", but we were 35 years behind @GuyCallendar
Ed Hawkins@ed_hawkins4 Apr 2023
85 years ago. In April 1938, @GuyCallendar published his seminal paper showing that Earth’s land areas had warmed over the previous 50 years. He also suggested that man-made CO₂ emissions had caused around half of the observed warming. 85 years ago. rmets.onlinelibrary.wiley.co…
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Replying to @ed_hawkins @GuyCallendar
I'm amazed how far back the conspiracy to destroy the world economy goes
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Ed Hawkins@ed_hawkins16 Jan 2023
Replying to @metofficece @GuyCallendar
Indeed! Figure 1.8 from IPCC AR6 WGI shows how comparable (over land) Callendar's estimates were with modern reconstructions of the same period:
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@MetOfficeCE@metofficece16 Jan 2023
Replying to @ed_hawkins
Shows just how good @GuyCallendar was that he picked up the trend in the 1930s. Really couldn’t have been done any sooner.
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Guy Callendar retweeted
Leo Hickman@LeoHickman15 Dec 2022
I spent a very fun hour chatting to @plumb_pud and @WeatherAisling for their @4loveofweather podcast. We ranged across lots of topics inc what we do at @CarbonBrief and even the work of @GuyCallendar (via @ed_hawkins) Listen here -> rss.com/podcasts/for-the-lov…

Leo Hickman with a fascinating insight into the Carbon Brief | For the love of weather

It was an absolute privilege to talk to Leo Hickman the director of Carbon Brief.

rss.com
For the love of weather podcast@4loveofweather14 Dec 2022
In the latest episode of the podcast that went live today we chat to @LeoHickman, director & editor of @carbonbrief We discuss climate journalism and the brilliant work @carbonbrief do. We also discuss the importance of having trusted resources for information on climate change.
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A mention in 1956 for my research on the effect of carbon dioxide on global temperatures!
This Post is from an account that no longer exists. Learn more
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A mention in 1956 for my research on the effect of carbon dioxide on global temperatures!
This Post is from an account that no longer exists. Learn more
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On this day in 1927 and 1964 respectively, Svante Arrhenius and Guy Callendar died. #climate allouryesterdays.info/2022/1…
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