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What Would the World Look Like If We Relied on Industrial Agriculture to Feed Everyone?

For the sake of argument let's consider how it might look if industrial agriculture becomes the path humanity chooses to feed itself.
 
 
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The world's population will probably hit 9 billion by 2050. That's about the only thing agreed upon by partisans in a long-waged debate over how best to feed all those bellies.  

On March 8, Dr. Olivier De Schutter, the United Nations Special Rapporteur on the right to food, released a report arguing that the use of small-scale, diverse farming methods, which he calls "agroecology," can double agricultural production in poverty-stricken areas, increase the economic prospects of the inhabitants, and improve their local environment.  

This argument refutes a common dismissal of sustainable agriculture: that it could never feed the world. That's the contention of those who believe in agriculture methods that involve the intensive use of energy, water, machinery, and chemicals to grow cash crop monocultures. I recently discussed these competing paradigms with De Schutter, in the context of what it might look like if industrial agriculture were, in fact, to feed the world.  

"I'm surprised at the simplistic diagnosis that appears to be dominant in public discourse," De Schutter said. "The official mantra is we need a 70 percent increase in agricultural production to feed the world. But this completely oversimplifies the debate. It only pays attention at the supply side of the equation, when we must also work on demand -- for instance the overconsumption of meat in industrialized countries. By 2050, if the current curves continue, 50 percent of global cereal production will go either to feeding cattle or to the irresponsible push towards biofuels production and consumption through fiscal stimuli and subsidies."  

Corn and soy, two of the world's most common crops, are both typically grown with industrial farming methods. Growing corn and soy for cattle feed is a terribly inefficient way to produce food calories, and using corn to produce ethanol is an inefficient way to produce fuel. Clearly, the easiest way to increase the food supply is to grow food for people, not cows and cars.  

Another problem with a myopic focus on the supply-side, according to De Schutter, is that "it neglects the urgent need to combat waste. We lose 30 to 35 percent of crops post-harvest because of poor storage facilities and communication infrastructures in developing countries."  

Despite the many holes in the supply-side solution to world hunger, for the sake of argument let’s suppose industrial agriculture becomes the path that humanity chooses, and consider how that might look.  

If recent history is any guide, it may play out with farmers in wealthy countries producing surpluses that are shipped to poor countries. These surpluses are only possible with agriculture subsidies and cheap oil, neither one of which are reliable in the long-term.  

Elsewhere in the world we can find examples of another possible future scenario, in which industrial agriculture methods are exported to the third world. This happened 40 years ago in Punjab, India, which in the 1970s became a poster child for industrial agriculture. Huge gains were recorded, especially in wheat production. But according to a 2007 report put out by the Punjab State Council for Science & Technology, "Over-intensification of agriculture over the years has led to water depletion, reduced soil fertility and micronutrient deficiency, non-judicious use of farm chemicals and problems of pesticide residue, reduced genetic diversity, soil erosion, atmospheric and water pollution and overall degradation of the rather fragile agro ecosystem of the state."  

According to De Schutter, "Climate change and environmental destruction are the most important factors behind recent spikes in food prices. Pushing agriculture methods that accelerate this is a recipe for disaster."