A third of UK teenagers believe climate change is “exaggerated”, a report has found, as YouTube videos promoting a new kind of climate denial aimed at young people proliferate on the platform.

Previously, most climate deniers pushed the belief that climate breakdown was not happening or, if it was, that humans were not causing it. Now, the Center for Countering Digital Hate (CCDH) has found that most climate denial videos on YouTube push the idea that climate solutions do not work, climate science and the climate movement are unreliable, or that the effects of global heating are beneficial or harmless.

Researchers from the CCDH gathered a dataset of text transcripts from 12,058 climate-related YouTube videos posted by 96 channels over almost six years from 1 January 2018 to 30 September 2023. They also included the results of a nationally representative survey conducted by polling company Survation which found 31% of UK respondents aged 13 to 17 agreed with the statement “Climate change and its effects are being purposefully overexaggerated”. This rose to 37% of teenagers categorised as heavy users of social media, meaning they reported using any one platform for more than four hours a day.