Yes, I believe that man-made global warming is a fact, but I also know that the discovery of the rise in greenhouse gases was not a major scientific breakthrough, and monitoring the greenhouse effect has not required a vast amount of scientific smarts.
And I wonder, If global warming brings about a major worldwide catastrophe, will that catastrophe prevent an even worse (and so-far unseen) man-made disaster, one that perhaps looms further out in the future. After all, it is science that brings us to these deadly turning points, and our science is the product of human nature. In fact our top scientists and academics arrive at the top though brute ambition, and in the course of their ambition, often abuse their families and students. Their public sense of ethics and honor and moral imperative is not a constant: it is something they often abandon in private, both at home and at school. Ask their sons and ex-wives. Ask the wounded and disabled they all left behind.