The world is urbanising faster than ever, with more than half of the planet’s population currently living in cities; that's more than any time in history. But when did this trend of “urbanisation” start? This fascinating visualisation charts the globe's march towards modernity over the last six millennia. Read more >>
In the late 1960s a biologist named Paul Ehrlich insisted that the world’s rapid population growth was unsustainable, even writing a book filled with predictions of nightmare scenarios. So what happened?