If you think we will have to wait until the end of the century, — say about another 76 years from now, to hit 2.9 degrees of warming, just an additional 0.9 degrees, then you have not been listening to explanations of exponential growth. According to James Hansen, et al, in "Global Warming is Accelerating. Why? Will We Fly Blind?", 14 September 2023, the Best…