___________________: plant and animal farming accounts for 70% of all water use by humanity; 90% in most developing countries. US food system uses ~80% of US fresh water.
___________________: US food system uses ~50% of US land area. Croplands, pastures, and rangelands are losing soil (overgrazing, tilling) at an unsustainable rate. It takes ~500 years to replace 1” of soil.
___________________: Fossil energy for fertilizers, machinery, irrigation, pesticides, transportation, etc.