A new United Nations assessment warns that forests across the Northern Hemisphere are becoming increasingly vulnerable as wildfires intensify and temperatures continue to climb. The report, released in October 2025, shows that average temperatures in northern regions have risen nearly 1.8°C above pre-industrial levels, accelerating drought cycles and weakening natural fire resistance. Over 5.2 million hectares of boreal and temperate forests have burned in the first nine months of 2025—one of the highest totals on record—driven by prolonged heat waves across Canada, Russia, Alaska, and parts of Scandinavia.
The UN cautions that without urgent climate mitigation, wildfire seasons in northern forests could lengthen by 30–50% by 2050, putting carbon-rich ecosystems at severe risk. Boreal forests alone store nearly 30% of the world’s terrestrial carbon, meaning large-scale fires could worsen global warming by releasing massive carbon stocks. The report urges governments to strengthen early-warning systems, invest in climate-resilient forest management, and expand cross-border cooperation, warning that extreme fire seasons are no longer anomalies but a new climate reality. More