Biochar: The Oldest New Thing You've Never Heard Of | Wae Nelson | TEDxOrlando
12:18
Biochar -- Putting the carbon Genie back in the bottle: Rob Lerner at TEDxSanMiguelDeAllende (2013)
15:20
Soil -- from dirt to lifeline: Fred Kirschenmann at TEDxManhattan
12:52
TEDxHilo - Josiah Hunt - Biochar and the Future of Farming
20:46
Soil carbon -- Putting carbon back where it belongs -- In the Earth | Tony Lovell | TEDxDubbo
6:42
AI - Friend, Foe or the Future We Create | Nihal Karthikeya Addala | TEDxWestberry School Youth
17:25
The cult you don’t know you’re in | Rose Owen | TEDxAberdeen
10:34
Biochar - the future of sustainable agriculture: Lauren Hale at TEDxUCR
9:10