The Government of Mexico presented the official postage stamp commemorating the 50 years of the UNESCO International Hydrological Programme (IHP) and the International Hydrological Decade (IHD) on 11 November 2015 during the XXIX Annual Convention and Expo of ANEAS in Chihuahua, Mexico.
The Secretariat of Environment and Natural Resources (SEMARNAT), the National Water Commission (CONAGUA) and the Mexican Postal Service (SEPOMEX) made the announcement during the four-day event from 10 to 14 November 2015. The Government of Mexico created the official postage stamp to promote the sustainable management of water resources and sanitation for all. Launched during a session on water security and extreme events, the postage stamp marks 50 years of UNESCO water-related activities as well as 40 years since the launch of IHP.
UNESCO is proudly celebrating the fiftieth anniversary of its water programmes. In 1965, UNESCO and the World Meteorological Organization (WMO) began the first worldwide programme of studies of the hydrological cycle – the International Hydrological Decade – complemented by a major effort in the field of hydrological education and training. Conscious of the need to expand upon the efforts of the IHD, UNESCO launched the IHP in 1975 to follow the Decade. The International Hydrological Programme is the only intergovernmental programme of the UN system devoted to providing policy advice, mobilizing international cooperation, and developing institutional and human capacities.