The failure of international law and institutions to address global environmental degradation has significant implications for law and society as the planet’s ecosystems approach irreversible tipping points. According to a recent study published in the journal Science, the global economy has transgressed four of the nine “planetary boundaries” critical to the planet’s self-regulating capacity. Climate change, deforestation, species extinction, and the runoff of phosphorus and nitrogen into regional watersheds and oceans have exceeded safe biophysical thresholds. Scientists refer to the current geologic era of human-induced environmental change as the Anthropocene. These environmental problems are inextricably intertwined with patterns of trade, finance, investment, and production that have created an enormous and growing economic gap between and within affluent and poor countries -- the global North and the global South. Grounded in colonialism, these North-South divisions have often paralyzed international law-making, resulting in deadlocks in environmental treaty negotiations and agreements characterized by ambiguity, lack of ambition, and inadequate compliance and enforcement mechanisms. International environmental law is a field in crisis because the problems it currently confronts are deeply embedded in the existing economic order and cannot be adequately addressed by simply tinkering on the margins. This article examines the North-South divide in international environmental law and offers several strategies to bridge the divide and create a more just and sustainable economic order grounded in a robust conception of environmental justice.