objects/agriculture-impact.html

Summary of the Environmental Impact of Agriculture

I=PAT equation

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

 

nexus of water, soil and energy

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/

global land use

of which 40% is seriously degraded (wiki reading on Agriculture)

 

economics

1/3 of population works in food production (ibid)

less than 5% of global aggregate GDPs (ibid)