How much Nature do we have? How much do we use? | Mathis Wackernagel | TEDxSanFrancisco
19:54
The earth, overconsumption and you: Fred Gale at TEDxLaunceston
17:53
Plantando a chuva para obter abundância | Brad Lancaster | TEDxTucson
18:00
Three Steps to Cut Your Carbon Footprint 60% Today | Jackson Carpenter | TEDxAsheville
16:13
Why do we celebrate incompetent leaders? | Martin Gutmann | TEDxBerlin
17:33
Why renewables can’t save the planet | Michael Shellenberger | TEDxDanubia
14:07
What’s happening in the arctic and why it matters to you | Elizabeth Arnold | TEDxSeattle
19:58
Cross cultural communication | Pellegrino Riccardi | TEDxBergen
16:49