That CO2 plays a role in warming the atmosphere was proposed 200 years ago in 1824 by Joseph Fourier.

In 1896, Svante Arrhenius calculated the first prediction of global warming, which still holds up to current models.

In 1901, the term “greenhouse effect” was coined by Nils Gustaf Elholm.

Just a friendly reminder that the concept of man made global warming is literally centuries old.