Addressing the worldwide challenges threatening humanity today, such as the global pandemic and climate change, requires learning and action at scales including and extending far beyond personal development. The concept of andragogy popularized by Malcolm Knowles focuses on the individual and does not attend to wider social contexts and collective learning. Achieving the necessary transformations to avert cascading collapses--and keeping up courage for the endeavor--necessitates a new conceptualization, an andragogy of hope. The Global Network of Learning Cities may be one of the best examples where key features of an andragogy of hope are already emerging. [For the complete volume, "American Association for Adult and Continuing Education Inaugural 2020 Conference Proceedings (Online, October 27-30, 2020)," see ED611534.]