BACKGROUND Milestones in the development of THE MEA 1972 – Stockholm Conference on the Human Development > First attempt to address the relationship between environment and development at the global level; > adoption of the first global environmental action plan; > founding of UNEP. 1992 – Rio Conference on Environment and Development > national and international policies focused on the integration of environmental, economic and social objectives; > 2 Key outcomes: Rio Declaration and Agenda 21; > Accelerated development of modern MEAs: more than 60% of current MEAs were created after 1992. Respect is inspired by the 1969 Vienna Convention on the Law of Treaties. This treaty, which entered into force in 1980, imposes the general components and guidelines for the development, negotiation and adoption of international treaties. This treaty, which entered into force in 1980, imposes the general components and guidelines for the development, negotiation and adoption of international treaties. 14 Implementation Strengths and weaknesses of the strengths and weaknesses of the MEAs> Common Strategy to Address Global Problems; > Clearly defines who should do what; > conflict resolution instruments; > Offers increased attention to the preventive approach. WEAKNESSES > lack of synergies between MEAs; > insufficient funding for many MEAs; > lack of performance indicators; > lack of coordination between MEAs at the national level; > In most MOEs, there are no international enforcement mechanisms. . . .