(2/7) BBC Horizon: How Many People Can Live On Planet Earth?
Hosted by David Attenborough.
Only 50 years ago the world population was about 2,5 billion. In the last 50 years we managed to get 7 billion on this tiny planet, a staggering increase by almost 300%. Recent studies show that in this rate we will exceed 20 or even 30 billion in the next 40 years and that basically means we run out of water, food and oil.