Some of world’s oldest trees hit by climate-fuelled wildfires in Patagonia

A team of researchers from the World Weather Attribution group reported this week that global heating significantly intensified the catastrophic wildfires that swept across the Patagonia region of Chile and Argentina throughout January, resulting in 23 fatalities and the destruction of ancient forests. The scientists concluded that the specific combination of extreme heat, low humidity, and high winds that fueled the blazes was made approximately three times more likely due to human-induced climate change. This environmental disaster has raised urgent concerns among conservationists as the flames penetrated deep into UNESCO-protected areas and national parks, threatening ecosystems that have remained largely untouched for centuries. In Chile, the human toll was particularly severe, with dozens of lives lost as the fast-moving infernos engulfed rural communities and residential areas. Meanwhile, across the border in Argentina, the fires devastated thousands of hectares of the Los Alerces National Park. This park is a critical sanctuary for the Alerce tree (Fitzroya cupressoides), a majestic conifer that can live for over 3,000 years, making it one of the oldest living organisms on Earth. The loss of these ancient giants represents an irreparable blow to global biodiversity and carbon sequestration efforts, as these slow-growing trees take millennia to reach maturity. The research highlights a dangerous shift in the Southern Hemisphere's weather patterns, where rising global temperatures are expanding the geographical reach and duration of fire seasons. Traditionally, the damp conditions of the Patagonian rainforests acted as a natural barrier against large-scale wildfires; however, prolonged droughts exacerbated by the climate crisis have turned these lush regions into tinderboxes. Experts warn that without significant reductions in greenhouse gas emissions, the frequency of such extreme weather events in South America will continue to climb, placing both human lives and irreplaceable natural heritage at permanent risk.