বৃহস্পতিবার, 18.01.18
 

Do we really need pesticides? - Fernan Pérez-Gálvez

209160 মতামত - 14 নভেম্বর, 2016

View full lesson: http://ed.ted.com/lessons/do-we-really-need-pes...

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.
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