By 2050, 70 per cent of the world's population will live in cities. But with infrastructures already stretched and political engagement at a low, it may be time for us to take the problems into our own hands.
In this video, Alessandra Orofino explains how a mixture of new technology and social engagement could help make our cities work better. "It is up to us to decide whether we want schools or parking lots, recycling projects or construction sites, cars or buses, loneliness or solidarity," she says. Time to make some serious decisions, then. [YouTube]