This study content analyzed 3,300 user comments from the 11 most-viewed YouTube videos about climate activist Greta Thunberg. The analysis reveals that about 4 in 10 comments contained some form of incivility. Moreover, 40% of the uncivil comments reflected ageism, slightly more than one third sexism, and just less than one quarter ableism. The analysis suggests that uncivil comments about
... [Show full abstract] Thunberg on YouTube were far from deliberative in nature, ignored her positions on climate change altogether, and focused on her youth, gender, and Asperger’s syndrome.