Just 10% of Americans currently say that human-caused climate change is not happening or is not about to happen. Climate change “dismissives” are a vanishing species. Disagreement is mostly about how fast, how much, possible effects and what the best course of action is. We’re wasting our time bemoaning the unbelievers, or trying to convert them.  It’s time to move on to the hard part: considering plausible scenarios and weighing the ol’ pros and cons of different approaches to mitigation and adaptation.