Warming Tripled the Odds of Patagonia Wildfires

by | Feb 13, 2026 | Science

The climate crisis inflamed wildfires that left 23 people dead in Chile and devastated forests in Argentina that host some of the world’s oldest trees, scientists have found.The hot, dry, and windy conditions that enabled the fires to blaze across huge areas in January were made about three times more likely by global heating, researchers from the World Weather Attribution (WWA) consortium found.Parts of Chile and Argentina are experiencing significantly drier summers as a result of human-caused carbon emissions, with rainfall now 25 percent lower in early summer in Chile and 20 percent lower in the affected region of Patagonia.AdvertisementAdvertisementSevere wildfires left the Chilean regions of Biobío and Ñuble in a “state of catastrophe” in mid-January and killed 23 people, destroyed more than 1,000 homes and forced 52,000 people to flee. The fires were driven by temperatures exceeding 37 degrees C and strong winds.In Argentina, wildfires broke out in early January, affecting the UNESCO-listed Los Alerces national park in Patagonia, home to ancient alerce trees that can live for more than 3,000 years. The damage is thought to have been worsened by large budget cuts to fire management services by the government led by Javier Milei, who has called the climate crisis a “socialist lie.”Juan Antonio Rivera, of the National Scientific and Technical Research Council in Mendoza, Argentina, who is part of the WWA team, said, “Ancient forests were devastated, as was the unique biodiversity in the area. These are ancient giants that have stood undisturbed for thousands of years.“Unfortunately with a government that does not understand climate change and its connection to human activities, and where nature is secondary in terms of priorities, wildfires end up having gre …

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