Miguel Altieri: Why is agroecology the solution to hunger and food security?

Today, a billion people live in hunger. Peak oil and environmental degradation threaten the food security of billions more; particularly with half the world’s population living in urban environments where they are dependent on industrially produced and imported food.

A transition is urgently needed, but how? What alternative policies can enable communities to realize their own food security in the face of environmental challenges, while also improving livelihoods, building resilience, and conserving ecosystems? Many food-related movements have already emerged around the world, but what ongoing challenges do they face?