1 Tymor
3 Pennod
Positive Energy - Season 1 Episode 2
A stove that's saving millions of trees and a machine that harnesses the power of pig poo.
- Blwyddyn: 2017
- Gwlad: United Kingdom
- Genre: Documentary
- Stiwdio: National Geographic Channel
- Allweddair:
- Cyfarwyddwr:
- Cast: Dallas Campbell, Kari Byron
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