Do we really need pesticides? - Fernan Pérez-Gálvez
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YouTubeTED-Ed
Do we really need pesticides? - Fernan Pérez-Gálvez
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 ...
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