The suggestion that cyclic changes in climate may have been an influence in the migration and evolution of humans is the only valuable spin-off contribution from the entire global warming discussion.
Discussion?!? The discussion is OVER!!! ;^)
The alibi for no warming used to be blamed on the oceans, that the oceans were hiding the extra energy in their depths — a physical impossibility and a nonsense — so it was studiied, and surprise surprise, the oceans were found to get colder and brinier with depth.
That stupid claim has reemerged.
The only thing that will stop it is a big roundup, arrests, arraignments, and prison time for the AGW fraudsters. And alas, when one no longer has recourse to law, all that remains is recourse to lawlessness.