The Brussels Urban Summit (BUS) is an initiative of Brussels Capital Region, Eurocities, Metropolis and the OECD Champion Mayors for Inclusive Growth Initiative.   BUS asks the big questions because the challenges facing cities today are vast. Climate change, migration, urban growth and inequality are putting the very fundamentals of urban life to the test. At the same time, cities are the drivers for the innovation needed for a greener and more inclusive future. The big answers we find and the choices we make in the next few years will determine our future for decades to come – for our cities and beyond.