The prevailing notion of sustainable development has remained ineffective at reducing environmental degradation and social inequalities. The chapter argues that sustainable development, as it has been conceived, is actually a shell game for creating neocolonial dependency in the developing world rather than more sustainable, self-sufficient nations. This chapter explains the history of colonization and urbanization, contextualizing the problem of weak, neoliberal, sustainable development using social science environmental theories, such as climate denialism, ecofeminism, environmental justice, metabolic rift, and treadmill of production. It then provides an alternative, a radical sustainability that is at once socially and ecologically egalitarian, or transformative, and restores the health of people and the planet, or regenerative. These cases are presented as alternatives to sustainable development and as examples of radical sustainability and self-sufficient, autonomous development.