At age 9, while traveling with his family and being "roadschooled," Birke Baehr began studying sustainable and organic farming practices such as composting, vermiculture, canning and food preservation. Soon he discovered his other passion: educating others -- especially his peers -- about the destructiveness of the industrialized food system, and the alternatives.

Now, 11-year-old, speaking at TED, he presents his take on a major source of our food -- far-away and less-than-picturesque industrial farms. Keeping farms out of sight promotes a rosy, unreal picture of big-box agriculture, he argues, as he outlines the case to green and localize food production.

(Source: Birke Baehr: What's wrong with our food system [TED])