View full lesson: http://ed.ted.com/lessons/do-we-really-need-pesticides-fernan-perez-galvez
Annually, we shower over 5 billion pounds of pesticides across the Earth to control insects, unwanted weeds, funguses, rodents, and bacteria that may threaten our food supply. But is it worth it, knowing what we do about the associated environmental and public health risks? Fernan Pérez-Gálvez weighs the pros and cons of pesticides.
Lesson by Fernan Pérez-Gálvez, animation by Mighty Oak.
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