2025 ranks as one of hottest years on record amid extreme weather disasters

2025 ranked as one of the three hottest years on record, with the three-year average temperature crossing the 1.5°C threshold set in the 2015 Paris Agreement. World Weather Attribution scientists analyzed 157 severe extreme weather events globally, studying 22 in detail including heat waves that became 10 times more likely due to climate change. Heat waves emerged as the deadliest disasters of 2025, while other major events included wildfires in Greece and Turkey, flooding in Mexico, Super Typhoon Fung-wong in the Philippines affecting over 1 million people, and monsoon rains in India. The analysis found human-caused climate change worsened by continued fossil fuel burning drove the extremes despite La Niña cooling in the Pacific. The findings came as global climate diplomacy stalled at COP30 in Brazil, which failed to secure explicit fossil fuel phase-out commitments.