Editing Greenhouse effect (section)

==History of discovery and investigation==
{{see also|History of climate change science}}

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| image1            = 18560823 Eunice Newton Foote - greenhouse effect.png
| caption1          = [[Eunice Newton Foote]] recognized carbon dioxide's heat-capturing effect in 1856, appreciating its implications for the planet.<ref>Foote, Eunice, 1856. [https://web.archive.org/web/20230223113925/https://ia800802.us.archive.org/4/items/mobot31753002152491/mobot31753002152491.pdf Circumstances affecting the heat of the Sun's rays]": Art. XXXI, ''The American Journal of Science and Arts,'' 2nd Series, v. XXII/no. LXVI, November 1856, p. 382-383.</ref>
| image2            = 191203 Furnaces of the world - Popular Mechanics - Global warming.jpg
| caption2          = The greenhouse effect and its impact on climate were succinctly described in this 1912 ''[[Popular Mechanics]]'' article, accessible for reading by the general public.
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The existence of the greenhouse effect, while not named as such, was proposed as early as 1824 by [[Joseph Fourier]].<ref name="Fourier 1824 136–167"/> The argument and the evidence were further strengthened by [[Claude Pouillet]] in 1827 and 1838. In 1856 [[Eunice Newton Foote]] demonstrated that the warming effect of the sun is greater for air with water vapour than for dry air, and the effect is even greater with carbon dioxide. She concluded that "An atmosphere of that gas would give to our earth a high temperature..."<ref name="Foote 382–383"/><ref name="Huddleston"/>

[[John Tyndall]] was the first to measure the infrared absorption and emission of various gases and vapors. From 1859 onwards, he showed that the effect was due to a very small proportion of the atmosphere, with the main gases having no effect, and was largely due to water vapor, though small percentages of hydrocarbons and carbon dioxide had a significant effect.<ref>John Tyndall, ''[[iarchive:heatconsideredas00tynduoft|Heat considered as a Mode of Motion]]'' (500 pages; year 1863, 1873)</ref> The effect was more fully quantified by [[Svante Arrhenius]] in 1896, who made the first quantitative prediction of global warming due to a hypothetical doubling of atmospheric carbon dioxide.<ref name="anrev" /> The term ''greenhouse'' was first applied to this phenomenon by [[Nils Ekholm|Nils Gustaf Ekholm]] in 1901.<ref name="easterbrook.ca"/><ref name="Ekholm N 1901 1–62"/>

{{excerpt|History of climate change science#First calculations of greenhouse effect, 1896|paragraph=2|file=no}}