From electric buses to bee pollination highways and wifi-equipped rubbish bins, a flock of inventions has recently been making its mark on urban landscapes. Got an innovative idea for smart city planning? Apply to take part in the Players of Change conference.
According to a UN Habitat forecast, two thirds of the world's population will live in cities by 2030. Not least because of their population density, cities have become a huge focal point when it comes to sustainable development.