Think about the ways that nature generates economic value. Resources probably jump to mind first: lumber to be harvested, fish to be caught commercially. Then recreational hunting and fishing, and ecotourism too. If you’re of an ecomodernist bent, there’s the value of ecosystem services such as clean air and water. Environmental stewardship, however, the hard work of people restoring ecosystems, picking up litter, and helping animals, likely doesn’t enter the equation. Yet the value might be surprisingly high.