There is no such thing as scientific proof. Nothing is proven, even the theory of gravity is not absolutely proven.
But there is consensus on gravity. Science based on top of the theory of gravity exists.
So when we talk about consensus, there are different kinds of consensus. Consensus by a large group that works in the field is one such. Another would be legal consensus so you would need to look at the 3 SCOTUS decisions on CO2 and how that is driving it now. Another would be consensus among the insurance companies and when do they start raising the rates on ocean front property, or make you rebuild on stilts because they will no longer insure the house otherwise.
While nothing is proven to an absolute degree of perfection, laws such as the law of gravity are able to predict results with an extremely high level of accuracy. Drop a rock from the top of a building and that law will tell youhen it will hit the ground. Repeat the experiment many time and you will get results that are almost identical, depending, of course, on the accuracy of the equipment being used. Thus, it is a law of physics with an excellent predictive capability.
The data put forth by the consensus of scientists who are in the global warming camp has shown little or no predictive value.