Penny Lane said "the environment and wildlife will pay the price" and I think that's the case, already is paying the price. From deforestation and extinction of species so that farmers can try to meet global demand for exportable agricultural goods, to soil degradation and water level reduction.
Farmers are also paying though, suicides are up in countries like India because farmers have been coached into unsustainable borrowing in order to buy unsustainable inputs to support an economic system that is bent on sustained growth. There have been a lot of explanations given, from meat eating Chinese and Indians, to ethanol and biofuels, to climate change, and the high cost of oil and natural gas. It's interesting how many of the talking heads will still get up infront of the Agro-industry convention and call for more efficiency in Agriculture, (which in my experience means dump more farmers), more chemically grown food, fertilizers and pesticides.
There are some others about like this one. I don't know Democracy Now, but the interview here,
Democracy Now! | Stuffed and Starved: As Food Riots Break Out Across the Globe, Raj Patel Details "The Hidden Battle for the World Food System" has some interesting points.
RAJ PATEL: Well, I mean, one of the reasons that you’re seeing food price riots right now is because all the countries that you listed, from Haiti to Senegal to Burkina Faso to India, they are largely hitched to an international economy where they have to import grain in order to be able to consume it. And this is a consequence of the US pushing a so-called free trade agenda, where countries are being forced to lower their tariff barriers, to stop protecting farmers.