Foreign Investment Farming | Horizon: How Many People Can Live on Planet Earth? | BBC Studios

Discover key moments from history and stories about fascinating people on the Official BBC Documentary channel: http://bit.ly/BBCDocs_YouTube_Channel To maintain their own food supplies, some of the wealthiest and most powerful countries in the world are acquiring large tracts of land from the poorest countries in the world. In this revealing clip, David Attenborough explores how to sustain an increasing world population. Thought provoking clip from the BBC's flagship science series Horizon. Subscribe to the BBC Worldwide channel: http://bit.ly/yqBWhy Check out the Horizon playlist: http://bit.ly/x5NdXA This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: https://www.bbcstudios.com/contact/co...