Click here for a curated collection of short-length videos about issues impacting sustainable food and farming.  From the site:

These professionally filmed educational shorts come from different conferences, events, organizations and outlets.  They include presentations from TEDxManhattan, Change Food and other food-related conferences and events.  Each talk in the library is searchable and tagged by topic/issue, speaker, organization and other tags that make it very easy to search for specific videos or specific groups of videos.