This guy is obviously not a Climate Change scientist.
An association is all those guys need to form an incontrovertible consensus.
It would be great to see a plot of sunspot activity vs. the heliocentric phase angle between Saturn and Jupiter, covering the span of available sunspot observations.
If it's consistent over many centuries, these guys are prolly onto something. Their abstract suggests such a thing ... but it sure would be nice to see their actual data.
Bump!
These scientists need to read some articles by Dr. Fairbridge. Unfortunately, I can’t find the pertinent reference right now. Dr. Fairbridge wrote about 100 books and 1,000 articles on geophysical, oceanographic, and geological topics. His seminal work, was the influence of the planets an the Sun through the shifting center of gravity of the solar system due to the planets orbits. Naturally, Jupiter and Saturn have a major influence. Once again, one can show a correlation, but it is much harder to show a cause and effect relationship.