Compost king: Paul Sellew at TEDxBoston
11:20
The Power of Worms | Erich Fässler | TEDxHochschuleLuzern
13:07
From sand to soil in 7 hours | Ole Morten Olesen | TEDxArendal
12:20
How a rooftop farm feeds a city | Mohamed Hage | TEDxUdeM
14:27
The Myth of Compostable Plastic | Hudson Gould | TEDxUTAustin
14:05
Let the worms eat your organic waste - Vermicomposting | David Witzeneder | TEDxDonauinsel
15:55
Treasure, not Trash: Composting & Food Recovery | Denise Polk, Ph.D. | TEDxWestChester
10:34
Biochar - the future of sustainable agriculture: Lauren Hale at TEDxUCR
15:20