Chloé Maurel Created in 1950 and bringing together 187 Member States today, the World Meteorological Organization (WMO) is one of the specialized agencies of the United Nations. As the successor to the International Meteorological Organization, founded in 1873, it now brings together almost all the countries of the world around an essential mission: coordinating international cooperation in the fields of meteorology, climate, hydrology and atmospheric observation. Its role is to ensure the rapid exchange of meteorological data, establish common scientific standards, develop early warning systems and provide essential expertise for understanding climate change. ...