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Environment and energy

Environment and energy

The unconventional scientist who predicted that rising carbon dioxide levels would change the climate

30 Oct 2021
Taken from the October 2021 issue of Physics World where it first appeared under the headline "The climate-change outsider". Members of the Institute of Physics can enjoy the full issue via the Physics World app.

Sidney Perkowitz on Guy Callendar, the engineer who demonstrated the link between rising carbon-dioxide concentration and temperature but was dismissed by meteorologists as a “non-expert”

Guy Callendar in 1961
(Courtesy: G S Callendar Archive, University of East Anglia)
With the United Nations Climate Change Conference (COP26) coming up next month, it is strange to thi

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