A tractor spreads fertilizer at a dairy farm in Morrinsville, New Zealand.
Sandra Mu/Getty Images
February 17, 2013 An environmental researcher argues the heavy phosphorus footprint of meat is good reason to eat less meat, given that phosphorus is a finite resource and critical for food security. But not everyone thinks we should be worried.
A soybean field near Campo Verde in western Brazil in January 2011. Researchers argue that enough arable land is already under cultivation to feed the planet for the next several decades.
December 19, 2012 A new study conflicts with predictions by the United Nations on how much land farmers will require to feed humanity in 2050. The starkly different visions of the future come down to a few key assumptions about supply and demand for food.
A worker piles sacks of corn at a market in Guatemala City.
Daniel LeClair/Reuters /Landov
March 7, 2012 Food security experts have long debated whether it's better to ship bags of rice and corn from the United States to the hungry overseas, or to buy food close to where it's needed. New research suggests most of the time, it's better to buy food close to where it's needed.
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