Stefani on the Sun vs. CO2 as climate drivers
The solar aa index predicts global sea surface temperatures to 2000 better than CO2, and as well as CO2 combined with the aa index. After 2000 CO2 is needed in the regression.
By Andy May
Frank Stefani, of the Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, has published a very interesting new paper that compares the solar “aa” index and CO2 emissions to global SST (sea surface temperatures using the Had... [6747 chars]
Published by: Watts Up With That
Read full article here: https://wattsupwiththat.com/2026/03/03/stefani-on-the-sun-vs-co2-as-climate-drivers/