Leading Cities, in partnership with QBE North America Foundation, is running The QBE AcceliCITY Resilience Challenge powered by Leading Cities. The Challenge was developed to help accelerate innovations that foster a more resilient world—which is more important than ever in today’s environment. Our panel of more than 40 global experts evaluated and selected these 50 semi-finalists from almost 400 applications representing 37 countries. Collectively, they represent some of the most promising solutions to a multitude of urban challenges as well as the hope for a more sustainable, more equitable, and more resilient future for cities around the world.