US agriculture was modeled to determine impacts of removing farmed animals on food supply adequacy and greenhouse gas (GHG) emissions. The modeled system without animals increased total food production (23%), altered foods available for domestic consumption, and decreased agricultural US GHGs (28%), but only reduced total US GHG by 2.6 percentage units. Compared with systems with animals, diets formulated for the US population in the plants-only systems had greater excess of dietary energy and resulted in a greater number of deficiencies in essential nutrients. The results give insights into why decisions on modifications to agricultural systems must be made based on a description of direct and indirect effects of change and on a dietary, rather than an individual nutrient, basis.
Original Source [2]
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/nutritional-and-greenhouse-gas-impacts-removing-animals-us-agriculture
[2] http://www.pnas.org/content/114/48/E10301
[3] http://admin.indiaenvironmentportal.org.in/category/author/robin-r-white
[4] http://admin.indiaenvironmentportal.org.in/category/author/mary-beth-hall
[5] http://admin.indiaenvironmentportal.org.in/category/journal/proceedings-national-academy-sciences
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/livestock
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-house-gases
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/food-security
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nutrition
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/animal-products
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/exports
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[15] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-impacts