"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.
資訊
- 節目
- 發佈時間2015年4月9日 下午8:51 [UTC]
- 長度1 小時 5 分鐘
- 年齡分級兒少適宜