Grand challenges in sustainable cities: urban innovation for global climate and sustainability goals—from policy agenda to research needs - Evans, James P.; Cassanmagnago, Davide; Chatterji, Tathagata; Irvin, Andrew; Jance, Banjamin; Oke, Cathy; Thioye, Massamba; Trencher, Gregory Patrick; Uyarra, Elvira; Yarime, Masaru (Frontiers in Sustainable Cities, 2025)