food by the numbers: feeding our hungry planet | national geographic Published 9 years ago • 96K plays • Length 1:43 Download video MP4 Download video MP3 Similar videos 1:43 food by the numbers feeding our hungry planet national geo 8:30 a plan to feed the world | future of food 13:44 hungry planet episode 1 1:30 investigating the future of food | national geographic 0:31 eat: the story of food | national geographic