The Energetic Demands and Planetary Footprint of Alternative Human Diets

Details The Energetic Demands and Planetary Footprint of Alternative Human Diets The Energetic Demands and Planetary Footprint of Alternative Human Diets

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufm.b33a1022e&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #B33A-1022

Physics

9800 General Or Miscellaneous

Scientific paper

Agriculture is one of the major vehicles of human alteration of the planetary environment. Yet different diets vary vastly in terms of both their energetic demands and overall planetary footprint. We present a quantitative argument that demonstrates that plant-based diets exert vastly smaller planetary environmental cost than animal-based ones. We demonstrate that under a reasonable and readily defensible set of assumptions, a plant-based diet differs from the average American diet by as much energy as the difference between driving a compact and efficient sedan and a Sport Utility Vehicle.

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