In developing a theory to explain the ice ages, Svante August Arrhenius (1859 – 1927), a Nobel-Prize winning Swedish scientist developed the formula that is still used to predict the effect of greenhouse gasses.
In 1896, he was the first to use basic principles of physical chemistry to estimate the extent to which increases in atmospheric carbon dioxide (CO2) will increase Earth’s surface temperature through the greenhouse effect. These calculations led him to conclude that human-caused CO2 emissions, from fossil-fuel burning and other combustion processes, are large enough to cause global warming. 120 years later some idiots still seem to think the concept is a ‘hoax’.
Even earlier, French scientist Claude Pouillet made the first estimate of the solar constant in 1838 and concluded the temperature experienced on the earth’s surface was much higher than could be explained by the sun’s radiation alone and suggested the atmosphere must provide some form of insulation. Arrhenius confirmed this hypothesis and identified the primary cause of the warming effect.