About Climate

As I understand it, one of the arguments in favor of the Gaia hypothesis is that Earth can regulate temperature, as a result of which the climate on the planet did not change substantially. At the same time, K. Yeskov has a fairly detailed description of the existence on Earth of so-called cryo- and thermo-eras, that is, the climate did in fact change. The question is: which of them should one believe, and should one believe either of them at all (not in the sense of whether Earth is a superorganism or not, but simply with regard to climate)?