It is celebrated on February 2, 1977, commemorating the signing of the Convention on Wetlands in Ramsar, Iran, on February 2, 1971.

This agreement is the first treaty on the planet concerning the conservation and wise use of wetlands. The Ramsar list includes, until 2013, 2167 designated sites and covers an area of 208 million 518 thousand 409 ha in 168 countries.

The importance of wetlands is that they are highly biologically diverse ecosystems, regulators of the water cycle and climate, generators of water resources for freshwater supply and are areas of use for human activities such as tourism and fishing.

Wetlands contribute to the regulation of the water cycle, flood and drought control, water provision, and wildlife shelter.

The types of wetlands included in the list are natural wetland areas, peatlands, marshes, marshes, lakes, rivers, estuaries, deltas, tidal lows, coastal marine areas, mangroves, coral reefs, water eyes, and artificial sites such as fish ponds, rice paddies, reservoirs and salt flats.

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