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Fact check: throwing cold water on heat wave disinformation

DW English · Jun 26, 2026, 5:00 PM · Also reported by 3 other sources

Key takeaways

  • An outdated air-conditioning law, a viral health myth about sleeping with the fan on and the age-old climate change hoax allegation: DW checked what's spreading in Europe's heat wave.
  • France received the worst of it, recording its highest-ever temperature on Tuesday, leaving thousands of homes without electricity.
  • Extreme weather typically brings a storm of disinformation with it; this heat wave is no different.

Why this matters: an international story with cross-border implications worth tracking.

An outdated air-conditioning law, a viral health myth about sleeping with the fan on and the age-old climate change hoax allegation: DW checked what's spreading in Europe's heat wave.

https://p.dw.com/p/5G89x No, electric fans aren't dangerous for your health during a heat wave Image: Stephane Mahe/REUTERSAdvertisement With temperatures of more than 40 degrees Celsius (104 degrees Fahrenheit) this week, much of Europe is in a heat-induced stupor.

France received the worst of it, recording its highest-ever temperature on Tuesday, leaving thousands of homes without electricity. More than 55 people have drownedas residents have jumped in the water to try to cool down.

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