Facing their fair share of challenges on the ground (from housing shortages to climate change) cities like Rotterdam are looking skywards for solutions – to the rooftops. There’s plenty of opportunity but also headwinds on the horizon. For one thing: where most roofs are owned by private citizens, how do you convince more people to look up and see the potential?

Featuring: Paul van Roosmalen, Claire Wolff, Jazlyn Bo, Anne Danielle Kissi, Lucille Lebret