TEDGlobal | Greg Asner | Ecology from the air
What are our forests really made of? From the air, ecologist Greg Asner uses a spectrometer and high-powered lasers to map nature in meticulous kaleidoscopic 3D detail
TED@IBM | Raphael Arar | How we can teach computers to make sense of our emotions
How can we make AI that people actually want to interact with?