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If you want to learn more about Guy Callendar's many contributions to climate science then come over to BlueSky: bsky.app/profile/guycal…
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Guy Callendar
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Guy Callendar
@GuyCallendar
Guy Stewart Callendar (1898 - 1964) | Discovered global warming in 1938 & suggested that increase in atmospheric CO₂ was partly responsible.
UK, until untimely death Katılım Ocak 2014
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Guy Callendar retweetledi
A new article about @GuyCallendar and how his ideas did not receive widespread acceptance for several decades.
nautil.us/the-part-time-…
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Guy Callendar retweetledi
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.com/doi/abs/10.100…
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Guy Callendar retweetledi
November 19, 1960 – Guy Callendar gives advice on unpopularity of C02 theory of climate change.
allouryesterdays.info/2023/11/18/nov…
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Guy Callendar retweetledi
@ClimateDann @StottPeter Well, @GuyCallendar did some basic but pretty innovative detection & attribution in his day!
Reading, England 🇬🇧 English
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_hawkins
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-shows-…
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@flamptiton @RishiSunak No - the effect of aerosol emissions (which caused the slight cooling) was not known at that time.
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@GuyCallendar @RishiSunak Did he predict the cooling from 1950 to 1980?
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Guy Callendar retweetledi
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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Guy Callendar retweetledi
@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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Guy Callendar retweetledi
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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Guy Callendar retweetledi
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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Guy Callendar retweetledi
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_hawkins
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.com/doi/abs/10.100…
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Guy Callendar retweetledi
@ed_hawkins @GuyCallendar I'm amazed how far back the conspiracy to destroy the world economy goes
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Guy Callendar retweetledi
@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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Guy Callendar retweetledi
@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 retweetledi
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-t…
For the love of weather podcast@4loveofweather
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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@percy_bloom Would love to be able to use this amazing reanimation offline if possible please (with appropriate credit of course)? Thanks!
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A mention in 1956 for my research on the effect of carbon dioxide on global temperatures!
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