European cities are using clever design solutions to fight extreme heat. Will they work?

Europe is facing a deadly, record-breaking heat wave, and to keep cool, cities and residents have taken to design interventions. Some are longer-running projects already underway, while others are quick DIY relief efforts for Europeans facing the hottest summer ever. Here are seven ways European cities have been aiming to help their citizens beat the heat (aside from buying more air-conditioning units), even if it’s just a couple of degrees at a time. [Photo: Jerome Gilles/NurPhoto v...