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Changing the food system is a necessity | Johan Röckstrøm and Prof. Walter Willett
What is a healthy and sustainable diet? The EAT-Lancet Lecture - Johan Rockström & Walter Willett
Meet the Food System with Dr. Walter Willett
Johan Rockström and Dr. Walter Willet at EAT Stockholm Food Forum 2017
Professor Johan Rockström about the food system
Johan Rockström
Three Food Rules to Follow
Walter Willett
Inspirational Talk - Walter Willett
Professor Walter Willett
Changing diets at a grand scale
MD PhD Walter Willett - Dairy