We all grow up in a culture that normalizes the environmental harms of fossil capitalism—fumes from car tailpipes, plastic containers in the trash can, the occasional news story about the extinction of a species we’ve never heard of, a hole in the ozone layer, and so on, all normal. Insofar as you think about the world using capitalist ideology, you’ll believe that we can use some combination of government regulation and technological innovation to address those so-called “environmental externalities” in a way that sustains corporate profits and allows the fossil-fuel economy (now the fossil-fuel/AI economy) to keep cranking. But the tricky bit about climate change is that it’s not simply an environmental externality. It’s not like the discrete cost imposed on one place, or one species, or one group of people (like turtles or coral reefs or “frontline communities” or “the poor,” human beings sacrificed on the altar of the fossil-fuel system). Climate change is not local. It’s planetary. It threatens the entire world, in our children’s lifetimes. That is why it is worth phasing out fossil fuels and remaking everything, even if it makes the rich less rich. Because the world is going to be remade in unimaginable ways if we don’t.