“We estimate that the probability to have such a heat or higher is generally more than two times higher today than if human activities had not altered the climate,” the scientists said of the results.
In total, the group took readings from seven weather stations — two in Finland, and one each in Denmark, Ireland, the Netherlands, Norway and Sweden.
The comparisons showed that the probability of such a heatwave had increased everywhere in the region as a result of climate change, although they noted that in Scandinavia the increase “was not visible in observations until now due to the very variable summer weather.”
WWA also warned that with global mean temperatures increasing, heatwaves in Europe will become “even less exceptional”.
The findings come as countries across Europe continue to struggle with soaring temperatures, with everything from transport to food supply affected, while several areas have been placed under weather alerts because of the extreme heat.
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