The world experienced record levels of heat in 2025, with impacts expected to last for thousands of years, the United Nations has warned.
According to the latest “State of the Global Climate” report by the World Meteorological Organization, the 11 hottest years on record have all occurred between 2015 and 2025, highlighting the accelerating pace of global warming.
The report found that 2025 was among the top three hottest years ever recorded, with global temperatures about 1.43°C above pre-industrial levels (1850–1900 average).
UN Secretary-General Antonio Guterres described the situation as a “climate emergency,” warning that “every key climate indicator is flashing red.”
For the first time, the report included data on Earth’s energy imbalance—the difference between incoming solar energy and outgoing heat.
