TED-ED: 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 P_rez-Galvez weighs the pros and cons of pesticides.