International Environmental Law and the Governance of Planetary Risk
International environmental law and planetary risk govern how international law responds to ecological harm that crosses borders, exceeds national capacity, or threatens shared Earth systems. This article explains transboundary harm, prevention, precaution, due diligence, environmental impact assessment, cooperation, information sharing, public participation, biodiversity protection, climate law, hazardous waste, pollution, marine environmental protection, environmental human rights, corporate responsibility, and environmental rule of law. It examines how treaties, institutions, courts, advisory opinions, soft law, and domestic implementation manage risks that are scientific, cumulative, unequal, and politically contested. The article also addresses biodiversity collapse, climate change, plastic pollution, toxic substances, ecosystem degradation, loss and damage, and planetary boundaries. By connecting doctrine, institutions, case studies, and lawyer-facing workflows, it shows how environmental law is moving from pollution control toward the governance of planetary risk, ecological interdependence, and global responsibility under contemporary international law.









