14:05

Let the worms eat your organic waste - Vermicomposting | David Witzeneder | TEDxDonauinsel

15:24

Dirty secrets of healthy soil | Peter Rutherford | TEDxPittwater

15:26

Compost for Climate Change | Dale Overton | TEDxUManitoba

15:17

Why planting a garden is a political act | Louis-Albert De Broglie | TEDxLausanne

10:57

The Secret to a Healthy Soil | Philippe van der Grinten | TEDxVenlo

15:20

Soil -- from dirt to lifeline: Fred Kirschenmann at TEDxManhattan

17:23

Garbage to Gold | C Srinivasan | TEDxVITVellore

12:18

Biochar -- Putting the carbon Genie back in the bottle: Rob Lerner at TEDxSanMiguelDeAllende (2013)