There are two ideas: (1) C02 is increasing. (2) The global temperature is increasing I am looking for the specific mechanism (most likely an equation / theories of physics) which climate scientists use to connect (1) and (2) together, and infer that (1) causes (2). I am looking for the math / science that explains how a rise in C02 can cause a rise in global temperature. I wonder if you might be able to clearly explain this to me in quite basic terms, and direct me to a source that explains it in greater depth? Thanks.