The worst thing about it, say experts, is that it’s actually a fairly calm and rational look at just how bad things could get — and how quickly — if humans don’t stop emitting greenhouse gases into the environment.
The scenarios “don’t seem that far-fetched to me. I don’t think there’s anything too crazy about them,” said Adam Sobel, a professor of applies physics and mathematics at Columbia University in New York City who studies atmospheric and climate dynamics.