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2025 set to be among hottest years on record, UN scientists warn

2025 ranks as second or third warmest year with global temperatures 1.42°C above pre-industrial levels amid rising greenhouse gases, UN reports stress urgent climate action.

  • On Thursday, November 6, the World Meteorological Organization reported that 2025 will rank as the second or third hottest year ever recorded, with January–August temperatures 1.42C above pre-industrial levels, releasing its State of the Global Climate report at the Leaders' Summit in Belém, Brazil.
  • WMO scientists found rising greenhouse gases and ocean heat content this year, with record greenhouse gas concentrations locking in future warming and ocean heat at its highest recorded level.
  • Arctic observations show record-low sea ice after the winter freeze, Antarctic sea ice extent tracked well below average, and global glaciers lost about 450 gigatonnes of ice in 2024.
  • The WMO report said limiting near-term warming to 1.5C is now unlikely without overshoot, but WMO Secretary-General Celeste Saulo said `the science is equally clear that it's still entirely possible and essential to bring temperatures back down to 1.5C by the end of the century`.
  • With COP30 opening on November 10 in Belém, the past 11 years have been the warmest since records began, and Blair Trewin said `Ocean heat content is looking at what's going on not just at the surface of the ocean but in the top 2,000 metres of the ocean`.
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Lean Left

Belém. The year 2025 is one of the warmest ever recorded after more than a decade of high and unprecedented temperatures, although the trend can still be reversed with concrete measures, said the World Meteorological Organization (WMO) yesterday.

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Lean Left

The series of exceptionally warm months continues in 2025, which will be the second or third warmest year on record, according to the World Meteorological Organization's (WMO) report on the state of the global climate.

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Right

The "alarming series" of unusually high temperatures continues, warns the World Meteorological Organization

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Impulsobaires broke the news in on Thursday, November 6, 2025.
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