The theory for global warming is both logical and compelling. As any theory, it starts with premises, tests by interpreting data, and steps through conclusions that follow from the premises. With logic, if the premises are true, the data valid and interpreted correctly, then the conclusions must be accepted.
We need to get this right. If the premises are faulty, the whole thing falls apart. If the data is not appropriate, accurate, and interpreted correctly, the whole thing falls apart. If the conclusions are not supported by the premises and the data, the whole thing falls apart. As much as we would like it to be, it is neither easy nor simple. See if we have this right, then we will examine each premise, the available data, and the steps to the conclusions.