An observational analysis of photometric evidence suggests solar forcing of Earth’s atmosphere could vary by as much as ±4.5 W/m² since 1750, which is “far larger than the IPCC estimate of −0.30 to +0.10 W/m²” (Judge et al., 2020). A 2017 study suggested the solar activity during the “modern maximum period from 1940 to 2015” … Continue reading New Study: Solar Forcing Estimates Since 1750 Could Be Much Larger Than Estimates Of Anthropogenic Forcing