Javier is ahead of you.
[FONT="][I]. . . In the 1960’s and early 70’s Milankovitch theory was discredited with only a handful of followers left. The anti-cyclical, GHG explanation enjoyed wide consensus, but due to the cooling at the time, scholars believed other factors must be at play. Then disaster struck for the anti-cyclical camp. In 1976, [URL="https://www.researchgate.net/profile/J_Hays/publication/301325552_Variations_in_the_Earth_pacemaker_of_the_ice_ages/links/573cca0c08ae9ace840fe240/Variations-in-the-Earth-pacemaker-of-the-ice-ages.pdf"]Hays, Imbrie, and Shackleton[/URL], analyzing Indian Ocean benthic cores for the past 450,000 years and showed that glaciations followed some of Milankovitch frequencies within 5% error. A 140-year quest had ended, and the cyclical orbital supporters had won.[/I][/FONT]
[FONT="][I]Of course, GHG supporters are bad players and did not accept the defeat graciously. Since it was soon discovered in ice cores that GHGs followed orbital changes (as they should), it was soon proposed (and accepted without evidence) that they were required to amplify the orbital changes and to maintain inter-hemispheric synchroneity. [B]Trying to turn the defeat into a victory, they claim that the frequency is set by Milankovitch but a great deal of glacial-interglacial climate changes are due to GHG changes.[/B][/I][/FONT][/COLOR]
[COLOR=#404040][FONT="]You would think that after showing that climate was cyclical and astronomically based, propositions that other astronomical phenomena (like lunar periodicities or solar variability periodicities), might affect climate would at least be given the benefit of doubt. But no. The anti-cyclical camp enjoys centennial beatings by the cyclical mavericks, so they are building up for the next one by flatly rejecting any significant climatic effect from periodical solar changes. Apparently, they are undeterred by the evidence showing most periods of low solar activity during the Holocene are associated with cooling and atmospheric circulation and precipitation changes, like the LIA. There are about 10 abrupt climate events (ACEs) associated with low solar activity during the Holocene. Some have names like the pre-boreal and boreal oscillations, or the 9.3 or 2.7 kyr events, showing that the most frequent cause for ACEs is prolonged low solar activity. . . .[/FONT]