Could climate change ever “wipe us out”?

Protect the ozone. I read recently that it is actually repairing itself since fluerocarbons,(?) were eliminated or hastily reduced. And Freon using a/c's aren't being made and fossil fuel had been cleaned up. But since our leader thinks it's fake science and his adorers hang on his every word as gospel(literally) i believe we'll see an increase in severe weather. But the earth dies go through cycles to a certain extent like an ice age every 12k. years and places like Alaska were tropical once 200m years ago......
...i guess someone was there. I would encourage the EPA too enlist equal numbers from both sides if possible to debate our future.