Grasslands: Roots of Power Human Planet : Season 1 Episode 6
TV-PG BBC One 50m
Aired: February 17th, 2011 @ 8:00 PM EST on BBC One
Grasslands feed the world. Over thousands of years, humans have learned to grow grains on the grasslands and domesticate the creatures that live there, propelling our population to almost seven billion people in the process.
