This 12k year cycle you are mentioning, is part of climate change calculations. You are not a minority genius who did a few calculations on back of a notepad,

This 12k year cycle you are mentioning, is part of climate change calculations. You are not a minority genius who did a few calculations on back of a notepad, is reading the internet and now is smarter than real experts. Real experts spend there daily life with it and actually know what to calculate. And yes it is co2.