NEW EPISODE ALERT! We delve into the life of Guy Callendar, the often overlooked scientist who discovered the link between human activity and #climatechange without a fancy lab or the internet! 😲 Listen to Episode 9, out now! smartteapodcast.com/guy-callendar

A new article about Guy Callendar and how his ideas did not receive widespread acceptance for several decades.

nautil.us/the-part-time-…

86 years

In April 1938, Guy Callendar 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…

November 19, 1960 – Guy Callendar gives advice on unpopularity of C02 theory of climate change.

allouryesterdays.info/2023/11/18/nov…

Dann Mitchell Peter Stott MBE Well, Guy Callendar did some basic but pretty innovative detection & attribution in his day!

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.”

Hi Rishi Sunak - 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.

Hi Rishi Sunak - 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.

Ed Hawkins Guy Callendar 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.

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

On the issue of our #ClimateEmergency , I always say 'blah, blah, The Green Party has been saying this for 50 years', but we were 35 years behind Guy Callendar

Ed Hawkins Guy Callendar I'm amazed how far back the conspiracy to destroy the world economy goes

@MetOfficeCE Guy Callendar Indeed! Figure 1.8 from IPCC AR6 WGI shows how comparable (over land) Callendar's estimates were with modern reconstructions of the same period:

Ed Hawkins Shows just how good Guy Callendar was that he picked up the trend in the 1930s. Really couldn’t have been done any sooner.

I spent a very fun hour chatting to Gemma Plumb and Aisling Creevey for their For the love of weather podcast podcast.

We ranged across lots of topics inc what we do at Carbon Brief and even the work of Guy Callendar (via Ed Hawkins)

Listen here ->
rss.com/podcasts/for-t…

A mention in 1956 for my research on the effect of carbon dioxide on global temperatures!

A mention in 1956 for my research on the effect of carbon dioxide on global temperatures!

On this day in 1927 and 1964 respectively, Svante Arrhenius and Guy Callendar died.
#climate

allouryesterdays.info/2022/10/01/oct…