A May heatwave across Europe has shattered temperature records and sparked a wave of familiar claims online that attempt to throw climate science into disrepute.
One post on X, viewed thousands of times, claims that historic heatwaves, such as those in London in the summer of 1976 and in 1921, prove that the current high temperatures are nothing unusual.
Other posts allege that temperature records are misleading, either via a real phenomenon known as the "urban heat island" effect, or through outright manipulation or deception.
Climate scientists say that these claims are not only misleading but can contribute to hostility and harassment directed toward researchers.
Sonia Seneviratne, professor of climate science at ETH Zurich, told Euronews' fact-checking team, The Cube, that she has personally experienced hostile reactions linked to her work.
