Svante Arrhenius (Feb. 19, 1859 – Oct. 2, 1927) was a Swedish scientist and Nobel Prize winner in 1903. His earliest works were on electrolytes and later in life he turned to astronomy and origins of life but along the way he worked on predicting the effects of CO2 (Carbon Dioxide) on the Earth’s atmosphere.
He studied the works of French scientist Joseph Fourier, who had earlier predicted surface temperature increases, and worked on predicting how much they would affect the Earth. He even went as far as saying that it may possible to prevent the next ice age with the increases in emissions. One of his main conclusions was that doubling CO2 levels, plus the water vapour that will be held in the atmosphere partially as a result, could cause a 5 to 6 degree centigrade rise in surface temperatures. His conclusions were long term, he had cited 3000 years as a time line for example, and he even viewed it as a positive because the Earth’s climate would be less harsh or cold as a result. In the late 20th century his work has had him called the father of climate change for the predictions that he made and is one of the basis for the more modern and accurate climate change models.
Read more about him at his entry at the Britannica online encyclopedia, at the Nobel Prize site, wikipedia and a feature article on the guardian newspaper website.
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