Comment by andsoitis

> I don't see how the existence of other systems that would be equally bad or worse is relevant.

Consumerism, the growth imperative, absence of proper carbon pricing, etc. ultimately cause ecological harm and are not exclusive to capitalism. Centrally planned economies have done the same. So you will have to address these, even if you have a different economic system.

Keep also in mind that capitalism has driven the technologies now central to decarbonization, like solar, batteries, etc., largely through market competition and innovation incentives.