Clouds Down Under

Guest Post by Willis Eschenbach [See Update at the end] Sometimes climate research is just plain funny. I wrote before about Irish rain and investigated whether there is any effect on the rain from the solar variations linked to sunspots. I was looking for evidence that the Svensmark hypothesis is true. Svensmark said that changes…

Tools to Spot the Spots

Guest Post by Willis Eschenbach People have asked about the tools that I use to look for any signature of sunspot-related solar variations in climate datasets. They’ve wondered whether these tools are up to the task. What I use are periodograms and Complete Ensemble Empirical Mode Decomposition (CEEMD). Periodograms show how much strength there is…

Why Ireland Is Green

Guest Post by Willis Eschenbach There’s an interesting study over at Climate of the Past entitled “A 305-year continuous monthly rainfall series for the island of Ireland (1711–2016)“ by Conor Murphy et al. Unfortunately, their link to their dataset was broken. So I got in touch with the Copy Editor, Anja Krzykowski, and she was…

Long Temperature Records and Sunspot Minima

Guest Post by Willis Eschenbach Well, folks were complaining that my graph of the CET compared to the centennial solar minima was just one location, England. So here are the five European temperature records which start before 1815. Now, if the theory of the solar/temperature connection is correct, the temperatures should start trending downward when…