Established to raise awareness about the value of wetlands for humanity and the planet, WWD was celebrated for the first time in 1997 and has grown remarkably since then. Each year, government agencies, non-governmental organizations, and groups of citizens at all levels of the community, have taken advantage of the opportunity to undertake actions aimed at raising public awareness of wetland values and benefits. Some of these benefits include: biologically diverse ecosystems that provide habitat for many species, serve as buffers on the coast against storms and flooding, and naturally filter water by breaking down or transforming harmful pollutants.

Last year theme for world wetland day was:

Source: https://en.m.wikipedia.org/wiki/World_Wetlands_Day

Happy Wetland Day 2019