The climate is a simpler, easier to measure, and easier to experiment on system than the human body. Also there are lots of different bodies which all change over time, but there is only one atmosphere.
The science of climate change is also multi-level, gradually converging on details with more and more sophisticated models, but the core of it rests on the absorbtion and re-emission spectra of CO2 and water vapor, which is some fairly simple long-settled experimental chemistry.
The science of climate change is also multi-level, gradually converging on details with more and more sophisticated models, but the core of it rests on the absorbtion and re-emission spectra of CO2 and water vapor, which is some fairly simple long-settled experimental chemistry.
(Wikipedia traces it to this fascinating little paper by Eunice Foote in AAAS in 1856! https://books.google.co.uk/books?id=6xhFAQAAMAAJ&pg=PA382&re... )