Record Wildfire Emissions in Europe Driven by Extreme Weather in 2025

In 2025, Europe faces unprecedented wildfires and heatwaves, exacerbating the impacts on the world’s fastest-warming continent.

According to the European Center for Medium-Range Weather Forecasts (ECMWF), last year marked the hottest year on record in the UK, Iceland, and Norway, and one of the three hottest years across Europe. Over 95% of the continent experienced above-average annual temperatures. Regions like Scandinavia, Finland, and northwestern Russia endured the most severe heatwave recorded, with temperatures soaring to 30°C (86°F) in the Arctic for a staggering 21 consecutive days.

This extreme heat threatens to stunt the growth of flora and fauna while fostering the spread of invasive species and pests. Celeste Sauro from the World Meteorological Organization emphasized that such prolonged heat stress has devastating effects on ecosystems: “We’re seeing between 0 and 2 days of strong heat stress, and now we’re talking about 21 days affecting the ecosystem’s health.” Since 1980, Europe has warmed at twice the global average rate, with heatwaves becoming more frequent and severe.

The warming climate contributed to record wildfires in Portugal and Spain last August, conditions now deemed at least 40 times more probable due to extreme heat, dryness, and wind. Over 10,000 square kilometers were scorched, resulting in at least three fatalities. As wildfires approached Madrid, parts of the Camino de Santiago had to be closed, with smoke wafting as far as Britain.

Across Europe, wildfires emitted a staggering 47 million tonnes of carbon dioxide, with Spain, the UK, the Netherlands, Germany, and Cyprus exceeding previous emission records. Soil conditions are at their driest in over 33 years, with extreme agricultural drought afflicting over one-third of Europe, including the UK, Turkey, and Ukraine. This drought conditions may have catalyzed wildfires, particularly in Spain and Portugal. As Samantha Burgess from ECMWF stated, “Following a wet spring that stimulated plant growth, the record summer heat has left dry plants and shrubs, creating tinderbox conditions.”

“When you combine wildfire weather with very high fuel loads and especially hot, dry winds, you create catastrophic conditions for wildfires to spread rapidly,” Burgess continued. “National parks must implement firebreaks to limit the spread in case of a wildfire.”

The waters surrounding Europe have also been abnormally warm, breaking records for annual sea surface temperatures for four continuous years. A staggering 86 percent of these oceans have experienced strong, intense, or extreme marine heatwaves, with the hottest spots located off the west of Ireland, south of Iceland, and southeast of Spain.

In the last three years, the Mediterranean Sea has experienced 100% heatwave conditions, warming at a pace faster than the global average. Water temperatures in Italy and Spain reached a sweltering 30 degrees Celsius, warmer than average swimming pools, increasing the likelihood of fish mortality and the proliferation of harmful bacteria and algae. Historically, marine heatwaves in the Mediterranean have devastated coral reefs, seaweed beds, and shellfish populations.

To mitigate future impacts, Europe must spearhead efforts to combat climate change. Dusan Krenek, a European Commission official, noted: “In 2025, 12.5% of the continent’s electricity was generated from solar power, with renewables accounting for a total of 46%.” European nations are among the pioneers participating in the Summit on the Transition Away from Fossil Fuels, held in Colombia, following the inadequacies of the COP30 climate change summit in Brazil.

Additionally, officials stress the need for Europe to adapt to forthcoming climate risks, including potential multi-year droughts akin to those currently affecting the western United States. “We must address these risks,” Krenek stated. “The cost of inaction far exceeds the investments needed to tackle these adverse effects.”