Using state of the art 3D graphics and the timing of a stand-up comedian, world famous statistician Professor Hans Rosling presents a spectacular portrait of our rapidly changing world.

With 7 billion people already on our planet we often look to the future with dread, but Rosling's message is surprisingly upbeat.

Almost unnoticed we have actually begun to conquer the problems of rapid population growth and extreme poverty.

Across the world, even in countries like Bangladesh, families of just two children are now the norm - meaning that within a few generations the population explosion... read the rest.