Wolfgang Kessling: How to air-condition outdoor spaces

This quick TED talk entry is courtesy of TED.com. 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.

Click Here to see the talk on TED.com