So this guy has reached the opinion that global warming is no big deal. He’s a Nobel prize winning scientist, and so therefore his opinion really matters, yes?
First off, his field is physics, not climatology. If he was speaking out against vaccines his opinion would carry about the same weight that it does here.
Second, fine. This one scientist doesn’t think much of global warming. Ok. On the other hand, 97% of other scientists do. So we can have him and two other scientists on one side, while 97 others are saying that, yes, it’s totally a real problem.
Science isn’t based off opinions, it’s based off verifiable, repeatable evidence. It doesn’t matter what this guy personally believes. The evidence is against him, and that’s all that counts.