Natural Resources
* Principal historic cause of demise of great civilizations: Topsoil depletion
* Percentage of U.S. cropland lost each year to soil erosion: 4 million acres (size of Connecticut)
* Percentage of U.S. topsoil loss directly associated with livestock raising: 85
* Length of time world's petroleum reserves would last if all human beings ate meat-centered diet: 13 years
* Length of time world's petroleum reserves would last if all human beings ate vegetarian diet: 260 years
* Principal reason for U.S. military intervention in Persian Gulf: Dependence on foreign oil
* Barrels of oil U.S. would have to import to meet present demand if 10% of population became fully vegetarian: None
John Robbins
Source: http://www.foodrevolution.org
Contributed by: Gaia Team