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WMO: 2025 is among the three hottest years in recorded history.

WMO: 2025 is among the three hottest years in recorded history.
WMO: 2025 is among the three hottest years in recorded history.

World Meteorological Organization announced on Wednesday that last year was one of the three warmest years on record. EU scientists confirmed that average temperatures are now above 1.5 degrees Celsius for the longest time since records began.

WMO, a global climate data aggregator, has ranked the year 2025 third in terms of temperature, with two other datasets placing it second.

The WMO reported that all eight datasets showed that the three most recent years have been the three hottest on record. The warmest recorded year was 2024.

THREE YEAR PERIOD AROUND 1.5 C AVERAGE WARMING LEVEL

The slight differences between the rankings of datasets reflect their differing?methodologies, including satellite data and readings taken from weather stations.

ECMWF stated that 2025 would also be the end of the first three years in which the global temperature average was 1.5 C higher than the pre-industrial era – the limit beyond which scientists believe global warming will have severe, irreversible impacts.

"1.5 C isn't a cliff-edge. "However, every fraction of a degrees matters, especially for worsening severe weather events", said Samantha Burgess.

Burgess predicted that 2026 would be one of the five warmest years on earth.

Choose how to manage temperature overshoot

Under the 2015 Paris Agreement, governments pledged to work to limit global warming to 1.5 C. This is measured by comparing the average temperature over a decade to pre-industrial temperatures.

ECMWF stated that if they fail to reduce their greenhouse gas emissions, the target may be reached before 2030 – a decade sooner than was predicted in 2015 when the Paris Accord was signed. Carlo Buontempo is the director of the EU's Copernicus Climate Change Service. He said, "We will pass it." The choice is now how to manage the inevitable overshoot, and its effects on society and natural systems.

ECMWF reported that the long-term global warming is currently about 1.4 C higher than the pre-industrial era. In 2024, the average annual temperature was measured on a shorter-term basis and it exceeded 1.5 C.

Extreme Weather

Overcoming the 1.5 °C long-term limit will lead to more extreme impacts. These include longer and hotter heatwaves as well as more powerful storms and flooding. In 2025, wildfires across Europe had the highest emissions ever recorded. Scientific studies also confirmed that climate change was responsible for specific weather events, such as Hurricane Melissa in the Caribbean and monsoon rainfall in Pakistan, which caused more than 1,000 deaths in floods. Climate science continues to face political opposition despite these increasing impacts. Donald Trump, the U.S. president who has called climate change a "greatest con job", withdrew last week from dozens U.N. organizations including the scientific Intergovernmental Panel on Climate Change.

Scientists have long agreed that climate change is real and largely caused by humans. It is also getting worse. The main cause of climate change is the greenhouse gas emissions that are produced by burning fossil fuels such as coal, oil, and gas. These gases trap heat in our atmosphere.

(source: Reuters)