Are the farms growing one or many types of food?
Are the farms subsistence or commercial, intensive or extensive?
How much does each farm system rely on human inputs and inputs from the natural environment?
Which of the farm systems is most damaging to the natural environment?
What are the opportunities and threats for the future of each farm system?

Intercropping on the edge of a forest, The Philippines.

� Ron Giling/Still Pictures

Protecting fruit from pesticide spraying on a banana plantation in Ghana

� Ron Giling/Panos Pictures.

Rice Farming in Tamil Nadu, India

� Sean Sprague/Panos Pictures

Cattle Ranching near Santa Rosa, Argentina

� Chris Sattlberger/Panos Pictures