The Ramsar Convention is an international treaty for the conservation and sustainable use of wetlands, aiming to stop their degradation and disappearance, today and tomorrow, by recognizing their fundamental environmental functions, as well as their economic, cultural, scientific, and re-creation value. The convention was elaborated and adopted by the participating nations during a meeting in Ramsar, Iran, on February 2, 1971. It was implemented on December 21, 1975. Today, the list of wetlands of international importance includes more than 1,700 sites, representing a surface area of approximately 1.6 million km2. Today, 158 countries have signed the convention.