Kim Stanley Robinson's novel imagines the next thirty years of human civilization as we either address climate change or suffer its consequences, told through dozens of narrative threads that weave together into something between fiction and thought experiment. The book opens with a heat wave in India that kills twenty million people, an event that transforms global politics by making climate action a matter of survival rather than preference. The central narrative follows the Ministry for the Future, a UN agency charged with representing the interests of future generations, and its director Mary Murphy, who works every lever of power to bend history's arc. Robinson incorporates textbook entries, meeting minutes, eyewitness accounts, and riddles alongside conventional chapters, creating a mosaic that captures the complexity of civilizational change. His vision includes terrorism by eco-radicals, central bank innovations in carbon currency, mass migrations, geoengineering experiments, and the slow grinding work of diplomacy and institution-building. Robinson, a science fiction writer known for his Mars trilogy, brings deep knowledge of economics, climate science, and political philosophy to a story that is simultaneously hopeful and harrowing. The novel argues that catastrophe can be survived if we build the institutions and develop the technologies that make survival possible—but it doesn't minimize the catastrophe. Readers will find both a gripping narrative and a detailed scenario for how climate action might actually happen.