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The Conversation USA

The Conversation USA

A mild-mannered biker triggered a huge debate over humans' role in climate change – in the early 20th century

  • Written by: Sylvia G. Dee, Assistant Professor of Earth, Environmental and Planetary Sciences, Rice University
imageGuy Stewart Callendar connected carbon dioxide concentrations with rising temperatures.GS Callendar Archive, University of East Anglia

In 1938, a British engineer and amateur meteorologist made a discovery that set off a fierce debate about climate change.

Scientists had known for decades that carbon dioxide could trap heat and warm the planet. But...

Read more: A mild-mannered biker triggered a huge debate over humans' role in climate change – in the early...

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