Chapter 25 of Earthopolis: A Biography of Our Urban Planet meditates on the crisis of the year 2020 as a culminant result of the Greatest Acceleration and as a moment to reckon with the consequences of humanity’s summoning of hydrocarbon power and People Power to run our cities. Can these driving forces of the Urban Planet generate a Just Transition that at once redesigns cities to harvest renewable forms of the day’s sunshine and wind and erases the many inequalities that beset Earthopolis? The chapter traces two spaces of hope, centered in our cities – spaces filled with burgeoning potential despite the revival of authoritarian politics, the Covid-19 pandemic, and the crisis of atmospheric overheating. These include spaces that generate new knowledge about the Urban Planet and its relationship to the Earth and Sun, and spaces where people are best able to mobilize the multiplicity and diversity of voices needed to re-envision humanity’s rule of Earth.