There is no morality or justice or karma to climate change. This isn’t a religious cleanse or a healthy system expelling a virus. This is just change that is hostile to many current forms of life.
Treating it like a moral or immune responses suggests we shouldn’t try to stop it or that those affected deserve it. Loss of life (human and otherwise) due to climate change is not good. As anarchists, our goal is to preserve life. Change your framing.