There’s a bit in Phil Christman’s latest newsletter where he talks about how rising global temperatures mean we will have to in some way come to terms with the fact that in order to live as a species, we will have to live “within our planetary means.”

Perhaps the next bit of human history—who knows how long, a hundred years, a thousand years, many thousands—will be figuring out how to live under those constraints. We spent the last few thousand figuring out how to live without constraint, and we overdid it.