lolwot:
As I said below, I am 99% sure at least 80% of the rise is human caused. Eg around that sort of range.
Thanks for the response! You’re the first person to give me one on this topic. You’ve also surprised me by giving a much lower figure than I expected. I don’t think most people who believe in AGW would go as low as 80%, even for a lower limit. Of course, I could be wrong.