We are living in extraordinary times: never before has a human being experienced a concentration of greenhouse gases like the present one. Climate change and the ecological crisis are accelerating at an unexpected rate and now our house is on fire. What do we do in a fire? Stay calm and find an emergency exit. In this book, Emilio Santiago and Héctor Tejero first show us the magnitude of the fire that threatens our future, and then they try to point us to an escape route to which we can go and buy time. This horizon of urgent transformation must find its way between two demobilizing temptations: catastrophism, which gives collapse the status of a fait accompli, and liberal techno-utopianism, which seeks to reduce sustainability to a technical problem that can be managed by the market. This implies assuming a fundamental premise: the ecological crisis is essentially a political dispute. And so that those below can win in the next decade, which seems decisive, the authors make a bet on the Green New Deal. Made known globally by Alexandria Ocasio-Cortez, the Green New Deal is an ambitious program of public intervention and social mobilization to curb the worst abuses of neoliberal ecological and social nihilism. And it can become the master key of an environmentalist political project of the majority, capable of standing up to the destruction of life and winning a better future for all the inhabitants of the planet.