![](https://image.tmdb.org/t/p/original/8a4yt7spUOxZ9Cwx8UWcytkVbM0.jpg)
![](https://image.tmdb.org/t/p/w342/l0paPXSpF9a9EAJDOc92UYp6YV0.jpg)
Africa and China
A stove that's saving millions of trees and a machine that harnesses the power of pig poo.
Stars:
![](https://image.tmdb.org/t/p/w300/bjk8SznWKfcEHXD1NDV9Jf7nODf.jpg)
![](https://image.tmdb.org/t/p/w300/4PTjMUuC8pVj8dH18TBpe26tlO1.jpg)
![](https://image.tmdb.org/t/p/w300/5Dg7mroOoFOqwMYRB5LjlIcWyOZ.jpg)
![](https://image.tmdb.org/t/p/w300/1jebq1Vzzq5OI77RaLy5LN5JXtk.jpg)
A stove that's saving millions of trees and a machine that harnesses the power of pig poo.