In a world careening towards climate chaos, nature is dead. It can no longer be separated from society. Everything is a blur of hybrids, where humans possess no exceptional agency to set them apart from dead matter. But is it really so? In this blistering polemic and theoretical manifesto, Andreas Malm develops a counterargument: in a warming world, nature comes roaring back, and it is more important than ever to distinguish between the natural and the social. Only with a unique agency attributed to humans can resistance become conceivable.