agriculture has a big impact
water - largest user
energy - 17% of all commercial energy in the US
emissions - 20% of CO2 emissions, 55% of methane
major portion of water budget
substantial (but not majority) portion of global energy budget
amount of land in production
image from http://foodfreedom.wordpress.com/2009/11/22/extinctions-over-population-and-the-profit-paradigm/
of which 40% is seriously degraded (wiki reading on Agriculture)
1/3 of population works in food production (ibid)
less than 5% of global aggregate GDPs (ibid)