Right, and it was a plausible response back when the rate of increase had only been slow-to-none for ~5 years. But as the length of the slowdown increases to mo

Right, and it was a plausible response back when the rate of increase had only been slow-to-none for ~5 years. But as the length of the slowdown increases to more than a decade and starts to approach two decades that becomes less tenable. There's a REASON those two charts haven't been updated, which is that even a plot of the five year average points WOULD show a slowdown if you did it today. Yes, it's true that there have been extended slowdowns/downturns before, (eg, 1920-1940) but those were seen as needing an explanation. (Or at least some handwaving.) AFAIK we don't really have an explanation for the current slowdown. One possible explanation is that sensitivity to CO2 is lower than we thought.