Datasets About Activity Stream Order by Relevance Name Ascending Name Descending Last Modified Go 1 dataset found Formats: PDF Tags: conservation Filter Results Ramsar Convention on Wetlands of International Importance (1971) The oldest multilateral environmental agreement, adopted in Ramsar, Iran, on 2 February 1971, entered into force in 1975. Currently 172 Contracting Parties with over 2,500... PDF