Calestous Juma on Science and Technology's Role in Feeding the World | PolicyCast

HKS Professor Calestous Juma, Director of the Science, Technology, and Globalization project, believes that science and technology are critical to the future of food security. He talks about meeting the needs of a growing human population, using science to improve agricultural productivity, the controversy over genetically-modified crops, the need for more science advisors in emerging countries and what the future holds for agriculture.