The wonderful world of worms | Cathy Nesbitt | TEDxTheAnnexWomen
11:20
The Power of Worms | Erich Fässler | TEDxHochschuleLuzern
14:05
Let the worms eat your organic waste - Vermicomposting | David Witzeneder | TEDxDonauinsel
13:07
From sand to soil in 7 hours | Ole Morten Olesen | TEDxArendal
10:34
Biochar - the future of sustainable agriculture: Lauren Hale at TEDxUCR
11:27
Why it's OK to be single | Dr. Peter McGraw | TEDxBoulder
21:02
TEDxWarwick - Charlie Price - Aquaponics - Getting More out of Less
14:40
Compost king: Paul Sellew at TEDxBoston
8:51