World Meteorological Organization | March 2026
Geneva, Switzerland – Press Release “The Earth’s climate is more out of balance than at any time in observed history, as greenhouse gas concentrations drive continued warming of the atmosphere and ocean and melting of ice, according to the World Meteorological Organization (WMO). These rapid and large-scale changes have occurred within a few decades but will have harmful repercussions for hundreds – and potentially thousands – of years.

Key messages:
- WMO State of Climate report confirms 2015-2025 hottest 11 years on record
- Earth’s energy imbalance is highest in sixty five-year record
- The ocean has been absorbing about eighteen times the annual human energy use each year for the past two decades
- Extreme weather impacts millions and costs billions
- World Meteorological Day: observing today to protect tomorrow
WMO’s State of the Global Climate report 2025 confirms that 2015-2025 are the hottest 11-years on record, and that 2025 was the second or third hottest year on record, at about 1.43 °C above the 1850-1900 average. Extreme events around the world, including intense heat, heavy rainfall, and tropical cyclones, caused disruption and devastation, highlighting the vulnerability of our interconnected economies and societies.
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