Empirical topics should be debated with empirical evidence. To the degree to which an objective reality exists, we consider scientific facts to be objective. At

Empirical topics should be debated with empirical evidence. To the degree to which an objective reality exists, we consider scientific facts to be objective. At this point the empirical evidence for climate change and AGW is beyond debate; we have ruled out alternative theories. Similarly, gravity and the germ theory of disease are settled science; they are not going to ever be overturned in any meaningful way. If you are not willing to concede that objective facts exist, that must be your own business, but otherwise I'm afraid you're going to have to accept that AGW has been conclusively proven.