The issue with climate change is not how big the temperature change is. It's *how fast it happens*. Most previous swings in the Earth's climate occurred on close to geological timescales, with ecosystems having plenty of time to adapt. Our current rate of acceleration out of the pre-industrial comfort zone is what is going to cause problems, not just for humans but living ecosystems across the planet in general.

I enjoy Rogan's podcast but it should not be your sole source of information on serious topics like this, which should be beyond politics. (For that matter, neither should internet comments like mine!)