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World Meteorological Organization (WMO)

Role and Mandate

The World Meteorological Organization is a specialised agency of the United Nations, established in 1950, with 193 member states and territories. Its mandate is to facilitate international cooperation in meteorology, hydrology, and related geophysical sciences, and to ensure the free exchange of meteorological data.

Key details
  • Headquarters: Geneva, Switzerland.
  • WMO coordinates the Global Weather Watch — a worldwide network of national meteorological services providing standardised observations.
  • WMO issues El Niño/La Niña Updates (typically every two months) as the authoritative international benchmark for ENSO status.
  • WMO also coordinates the Global Climate Observing System (GCOS) and works closely with the Intergovernmental Panel on Climate Change (IPCC) — which WMO co-founded along with UNEP in 1988.
  • WMO's annual State of the Global Climate report is the primary global temperature-record reference cited in international climate negotiations.
In the news

● Tracked since March 22, 2026 · last seen July 03, 2026 · updates as the daily brief publishes

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