The United Nations Educational, Scientific and Cultural Organization (UNESCO) recently supported the Society of Wetland Scientists' concern for Lake Ohrid in Macedonia. As the oldest lake on the European continent, this three-million-year-old lake is considered a Natural and Cultural Heritage site, and holds valuable information on evolution and rare species. Today, Lake Ohrid is threatened by infrastructure projects and urban developments. UNESCO requested that the Macedonian government halt the construction projects and instead develop alternative ecotourism programs. Read more about UNESCO's efforts. SWS first voiced its concern for Lake Ohrid back in 2015. Read the SWS Lake Ohrid letter.