What does the future hold for our cities? We know the population is growing and is becoming more urbanised. In 2050, there will be 10 billion people living on the planet – about 70% of them in cities. How will our cities cope? World leaders, mayors and governments need to act now. But how do they prepare, and for what? A group of leading professionals in international engineering have combined their expertise to create an integrated vision of the city of the future in 2050.