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2025 will be world's second or third-hottest year on record, EU scientists say

Copernicus data shows 2025 tied with 2023 as second warmest year, with global average 1.48°C above pre-industrial levels, nearing the 1.5°C Paris Agreement threshold.

  • On Monday, the European Union's Copernicus Climate Change Service reported 2025 is tied with 2023 as the second-warmest year, with January–November temperatures 1.48 degrees Celsius above pre-industrial levels.
  • Scientists say greenhouse gas emissions from burning fossil fuels drive warming, while this year's weak, short-lived La Niña failed to offset the trend, Copernicus said.
  • November 2025 was the third-warmest November at 1.54 degrees Celsius with a 14.02 degrees Celsius average, while extreme weather this year killed more than 1,600 and Hurricane Melissa caused over 80 deaths and $8.8 billion in damages.
  • The three-year average indicates the 2023–2025 period is on track to exceed 1.5 degrees Celsius, and United Nations Secretary‑General António Guterres warned the world likely cannot contain warming below this threshold.
  • After COP30 concluded last month without an explicit fossil-fuel phase-out, Samantha Burgess said `These milestones are not abstract- they reflect the accelerating pace of climate change and the only way to mitigate future rising temperatures is to rapidly reduce greenhouse gas emissions`.
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According to the latest figures of the EU Earth observation programme Copernicus, the current year is expected to be the second warmest year since the start of the records. The warmest year so far was 2024.

·Germany
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This year is expected to be right after the record year 2024. It is expected that the 1.5 degree mark will be exceeded for the first time for three years.

·Vienna, Austria
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  • 40% of the sources lean Left
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Scientific American broke the news in on Monday, December 8, 2025.
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