"turning the problem into the solution" Jena Griffiths of Earth School spoke to Swiss farmer Thomas Rippel about an innovative way to prevent acid rain, reduce global warming and enrich farm soils by getting cows to preserve their own manure.
Información
- Programa
- Publicado9 de abril de 2015, 20:51 UTC
- Duración1 h y 5 min
- ClasificaciónApto