normative claim
Watersheds, airsheds, and intact land are preconditions of human capability, not substitutable inputs. An intervention that degrades these substrates degrades the capability set of the communities that depend on them --- and no quantity of downstream flourishing-for-others can substitute.
capabilities norm_ecosystem_capabilities
Axiom detail
Capabilities framing extended to environmental and community capabilities (Nussbaum, Sen). Human and community flourishing requires healthy watersheds, air, and land as preconditions --- not as aggregable utility but as capability-substrate.