Such agreements at the global level include the World Heritage Convention (Convention Concerning the Protection of the World Cultural and Natural Heritage, 1972), Agenda 21 (1992), the Convention on Biological Diversity (1992), the Global Programme of Action for the Protection of the Marine Environment from Land Based Activities (1995) and the Plan of Implementation for the World Summit on Sustainable Development (2002). Regional agreements including the Convention on the Protection of the Marine Environment of the Baltic Sea Area (1975, revised in 1992) and the Convention for the Protection of the Mediterranean Sea against Pollution (1976, amended and widened to include e.g. coastal regions in 1995).