Horizon. [Season 46, Episode 7], How many people can live on planet Earth? / written & directed by Helen Shariatmadari ; BBC Productions.
The world's population is growing and could exceed 9 billion within the next four decades. In this fascinating programme, esteemed naturalist and broadcaster Sir David Attenborough takes a look at the problems we face as a continuously growing species. From Mexico to Spain, China to Rwanda, eco...
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