Hans Rosling is a Swedish medical doctor, academic, statistician and public speaker. He is one of the founders and brains behind Gapminder.com, a nonprofit group that examines and explains data about wealth and health around the globe. (And if you, like Rosling, think data is sexy, check out this article about the designers behind the data in the New York Times.)
TED talks: Hans Rosling and the magic washing machine
Hans Rosling makes the case for the real challenge of the future - helping all people reach a comfortable lifestyle without overtaxing the planet.