Cities already play a critical role in addressing some of the greatest challenges of our generation, including climate change, resilience, and social equity. Fifty percent of the world’s population now lives in urban areas, and that figure is expected to grow in the coming years. Cities have the ability and motivation to transform the lives of their residents for the better, but often lack the resources and expertise to stay on the cutting edge of research and policy. With more support, leading cities can rapidly pilot innovative solutions to societal challenges, which in turn can catalyze large-scale change. The Policy Institute works to connect cities with relevant research that can help policymakers build the cities of the future.