La Mierla blaze rages uncontrolled
A wildfire near La Mierla in Spain's Guadalajara province has burned out of control for five days, becoming the largest blaze of 2026. The fire has scorched over 26,000 hectares of land, forcing more than 1,000 residents to evacuate, with nearly 30 communities remaining under threat. Firefighters are struggling to contain the flames as dry conditions and strong winds continue to feed the fire's spread.
Heatwave threatens to worsen conditions
Forecasters have warned that an approaching heatwave will push temperatures above 40°C (104°F) across much of Spain in the coming days, dramatically raising fire risks. The combination of extreme heat, low humidity, and dry vegetation creates ideal conditions for wildfires to spread rapidly. Spain has already become the European Union's worst-affected country by wildfires this year, with scientists linking the trend to climate change intensifying fire seasons across southern Europe.
Climate context
The blaze is part of a broader pattern of extreme fire weather affecting the Northern Hemisphere. Canadian wildfires have simultaneously exposed millions of people across the U.S. Midwest and Northeast to hazardous smoke, while parts of the Western U.S. face dangerous fire weather with lightning and wind. The Copernicus Atmosphere Monitoring Service reported that Ontario's wildfire carbon emissions have already reached record annual levels.