Call me a converted skeptic. Three years ago I identified problems in previous climate studies that, in my mind, threw doubt on the very existence of global warming. Last year, following an intensive research effort involving a dozen scientists, I concluded that global warming was real and that the prior estimates of the rate of warming were correct.
I’m now going a step further:
Humans are almost entirely the cause.
Never any doubt, but some people prefer “proof” whatever that is.