After decades of developing environmental treaties, protocols and other Multilateral Environmental Agreements, the international community is turning its attention to ensuring that these instruments are complied with and effectively enforced. This manual, produced to assist countries in addressing the many challenges facing them, provides explanatory text, case studies, checklists, references to additional resources, and annexes with supplementary information. The Manual also highlights experiences from around the world in negotiating, implementing, and enforcing Multilateral Environmental Agreements at the national, regional, and global levels