Between Earth and Empire focuses on the crucial position of humanity at the present moment in Earth History. We have left the Cenozoic, the “new period of life,” and are now in the midst of the Necrocene, a period of mass extinction and reversal. It is argued that an effective response to global crisis requires attention to all major spheres of social determination, including the social institutional structure, the social ideology, the social imaginary, and the social ethos. In this wide-ranging and ruthlessly compassionate critique, John P. Clark explores examples of significant progress in this direction, including the Zapatista movement in Chiapas, the Democratic Autonomy Movement in Rojava, indigenous movements in defense of the commons, the solidarity economy movement, and efforts to create liberated base communities and affinity groups within anarchism and other radical social movements. In the end, the book presents a vision of hope for social and ecological regeneration through the rebirth of a libertarian and communitarian social imaginary, and the flourishing of a free cooperative community globally.