The following article might be of help: https://friendsofscience.org/assets/documents/Arrhenius%201906,%20final.pdf https://friendsofscience.org/assets/document

The following article might be of help: https://friendsofscience.org/assets/documents/Arrhenius%201906,%20final.pdf https://friendsofscience.org/assets/documents/Arrhenius%2019... It was published in 1906... I.e the knowledge that CO2 causes warming which causes water vapor that in turn causes more warning is more than 100 years old!