Wolfgang Kessling How to air-condition outdoor spaces
During the hot summer months, watching an outdoor sports match or concert can be tantamount to baking uncomfortably in the sun — but it doesn't have to be. At the TEDxSummit in Doha, physicist Wolfgang Kessling reveals sustainable design innovations that cool us from above and below, and even collects solar energy for later use.
Emily Parsons-Lord Art made of the air we breathe
Emily Parsons-Lord re-creates air from distinct moments in Earth's history — from the clean, fresh-tasting air of the Carboniferous period to the soda-water air of the Great Dying to the heavy, toxic air of the future we're creating. By turning air into art, she invites us to know the invisible world around us. Breathe in the Earth's past and future in this imaginative, trippy talk.
Kamal Meattle How to grow fresh air
Researcher Kamal Meattle shows how an arrangement of three common houseplants, used in specific spots in a home or office building, can result in measurably cleaner indoor air.
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 — what he calls "a very high-tech accounting system" of carbon. In this fascinating talk, Asner gives a clear message: To save our ecosystems, we need more data, gathered in new ways.