Global food trade alleviates transgressions of planetary boundaries at the national scale.

ABSTRACT: Food systems are among the leading causes for transgression of planetary boundaries globally, which define the safe operating space for humanity. We quantify unsustainable environmental impacts of food systems, indicated by the transgression of national-scale planetary boundaries (i.e., the safe operating space for food production in each country), from both production and consumption perspectives of 189 countries/regions around the world. A multi-regional input-output model is used to map the global transfers of the national-scale transgression of planetary boundaries, including freshwater use, land change, and biogeochemical flows (nitrogen and phosphorus). Our results show that China is a major global unsustainable water and nitrogen exporter and an unstable land and phosphorus importer

SUBMITTER: Liao X 

PROVIDER: S-EPMC10504541 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature