Abstract
Low-meat and no-meat diets are increasingly acknowledged as sustainable alternatives to current Western food consumption patterns. Concerns for the environment, individual health or animal welfare are raising consumers’ willingness to adopt such diets. Dietary shifts in Western countries may modify the way human-environment systems interact over distances, primarily as a result of existing trade flows in food products. Global studies have focused on the amount of water, land, and CO2 emissions embodied in plant-based versus animal-based proteins, but the potential of alternative diets to shift the location of environmental impacts has not yet been investigated. We build on footprint and trade-based analyses to compare the magnitude and spatial allocation of the impacts of six diets of consumers in the United States of America (USA). We used data on declared diets as well as a stylized average diet and a recent dietary guideline integrating health and environmental targets. We demonstrate that low-meat and no-meat diets have a lower demand for land and utilize more crops with natural nitrogen fixation potential, yet also rely more widely on pollinator abundance and diversity, and can increase impacts on freshwater ecosystems in some countries. We recommend that governments carefully consider the local impacts of the alternative diets they promote, and minimize trade-offs between the global and local consequences of dietary shifts through regulation or incentives.
Original language | English |
---|---|
Article number | 102066 |
Pages (from-to) | 1-14 |
Number of pages | 14 |
Journal | Global Environmental Change |
Volume | 62 |
Early online date | 23 Mar 2020 |
DOIs | |
Publication status | Published - May 2020 |
Funding
This research was funded by the Marie Skłodowska-Curie actions ( MSCA grant agreement No 765408 from the European Commission : COUPLED ‘Operationalising Telecouplings for Solving Sustainability Challenges for Land Use’, and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) project No. KA 4815/1-1; Authors thank Cecilia Zagaria and Bep Schrammeijer for carefully proofreading the manuscript, and three anonymous reviewers for their suggestions. All contributed greatly to improve the manuscript. This research was funded by the Marie Sk?odowska-Curie actions (MSCA grant agreement No 765408 from the European Commission: COUPLED ?Operationalising Telecouplings for Solving Sustainability Challenges for Land Use?, and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) project No. KA 4815/1-1;
Funders | Funder number |
---|---|
Cecilia Zagaria and Bep Schrammeijer | |
Multiple Sclerosis Center of Atlanta | |
Horizon 2020 Framework Programme | |
H2020 Marie Skłodowska-Curie Actions | 765408 |
European Commission | |
Deutsche Forschungsgemeinschaft | KA 4815/1-1 |
Keywords
- Dietary change
- EAT diet
- Ecosystem services
- Land use change
- Telecoupling
- Trade
- Trade-offs