HistoPol (#HP) 🏴 🇺🇸 🏴
anlomedadGavin Schmidt compares CMIP6 models for low-medium emission scenario to #JimHansen #Hansen et al 2023 and finds no differences.
Another benefit of Gavin's article is that his chart also shows a line for a fictitious linear trend. The usual CMIP charts we all know and dread don't come with such a line. So I learned: acceleration of temperature rise is projected in low-medium emission scenarios. Also good to see/read: CMIPs are computed with a rise in CO2 and CH4 and reduction in SO2. Parts of the Hansen hype to me sounded as if somehow SO2 reduction had been forgotten in climate models. But that is ofc not the case. And Gavin notes it especially. https://www.realclimate.org/index.php/archives/2024/04/much-ado-about-acceleration/
Another benefit of Gavin's article is that his chart also shows a line for a fictitious linear trend. The usual CMIP charts we all know and dread don't come with such a line. So I learned: acceleration of temperature rise is projected in low-medium emission scenarios. Also good to see/read: CMIPs are computed with a rise in CO2 and CH4 and reduction in SO2. Parts of the Hansen hype to me sounded as if somehow SO2 reduction had been forgotten in climate models. But that is ofc not the case. And Gavin notes it especially. https://www.realclimate.org/index.php/archives/2024/04/much-ado-about-acceleration/
RealClimate: Much ado about acceleration
RealClimate: There has been a lot of commentary about perceived disagreements among climate scientists about whether climate change is, or will soon, accelerate. As with most punditry, there is less here than it might seem.
Ulrich Nate Vanscheidt