Researchers also found that mortality associated with high temperatures has increased in almost 100% of European regions since 2014.
In 2025, the average annual temperature exceeded normal levels in 95% of Europe. Northern Europe was not left out either - in the subarctic region covering Norway, Sweden, and Finland, there was an exhausting heat wave lasting 21 days, as reported by Deutsche Welle. Typically, extreme high temperatures there last no more than two days. Spain experienced its hottest weather in at least 1975.
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The average sea surface temperature surrounding Europe has also been breaking records for the fourth consecutive year. This causes serious damage to marine biodiversity, leading to mass animal deaths and disrupting the balance of food chains, according to the report "State of the Climate in Europe 2025."
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The number of heat-related deaths in Europe reached nearly 63,000 in 2024, according to the annual Lancet Countdown report. Researchers also found that mortality associated with high temperatures has increased in almost 100% of European regions since 2014.
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The year 2025 was catastrophic for Europe in terms of wildfires - over 1 million hectares of land burned. Greece experienced one of the largest outbreaks of wildfires in recent years - 50 ignition points in a single day. More than two-thirds of European rivers have dried up.
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Glaciers melted in almost all European regions, especially in Iceland, where the second-largest annual glacier mass loss since 1976 was recorded. The Greenland ice sheet has decreased by approximately 139 gigatons of ice. Over the past 50 years, melting ice in Greenland and Antarctica has contributed to a 3 cm rise in global sea levels. Each additional centimeter puts about 6 million people at risk of coastal flooding.
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