From sand to soil in 7 hours | Ole Morten Olesen | TEDxArendal
17:33
Why renewables can’t save the planet | Michael Shellenberger | TEDxDanubia
18:06
Growing a Regenerative Perspective | Jared Knock | TEDxSioux Falls
15:20
Soil -- from dirt to lifeline: Fred Kirschenmann at TEDxManhattan
12:20
How a rooftop farm feeds a city | Mohamed Hage | TEDxUdeM
15:24
Dirty secrets of healthy soil | Peter Rutherford | TEDxPittwater
11:20
The Power of Worms | Erich Fässler | TEDxHochschuleLuzern
17:39
From landscape architecture to conservation agriculture | Thomas Woltz | TEDxCharlottesville
20:46