I believe in climate change but in terms of a great filter candidate it doesn't seem significant - even in a worst case scenario with a lot of warming there will be large parts of the planet that are perfectly habitable.
On the other hand: nuclear war, genetic engineering, or just plain bad luck (carrington event, asteroid impact) seem much more likely to actually wipe out modern society
On the other hand: nuclear war, genetic engineering, or just plain bad luck (carrington event, asteroid impact) seem much more likely to actually wipe out modern society