About climate change, there will be a significant portion of the population that denies it’s occurring even as their cities are flooded, their relatives die, and their world comes unhinged. I’d say 20-30% because that’s about how many religious fundies there are, and though those don’t necessarily overlap, the number of people who believe or disbelieve anything against all evidence is always about that much.

We’re not built for the society we’ve created. I know that conservatives don’t believe that humans evolved at all and that liberals believe there was no evolution above the neck, but we evolved in far different conditions and we just can’t handle the much larger-scale messes we’ve made.