Urbanization
The urban challenge.
Hans Rosling shows the last 40 years of development of urbanization.
TEDTalks
Hans Rosling's TEDTalks have been seen by millions. Tune in and see the talks from 2006 onwards:
TED stands for Technology, Entertainment & Design and has arranged conferences since 1984. Their annual conferences bring together the world's most fascinating thinkers and doers, who are challenged to give the talk of their lives (in 18 minutes).