Teleology is the idea that something has a purpose. I don't see climate as having a purpose (in that it wasn't designed with a goal in mind). I also don't see

Teleology is the idea that something has a purpose. I don't see climate as having a purpose (in that it wasn't designed with a goal in mind). I also don't see climate as a system (mainly because I don't see it having a teleologic character), it is the simplification and summarization of somewhat cyclically driven (though definitely non-linear) phenomena. After that, the Hadean is a period about 4 billion years ago named mainly because (to life) it was hellish, but otherwise relatively self-contained (in comparison to the epoch immediately preceding it when space debris continued to pummel the planet).