Swedish activist Greta Thunberg has become a vastly influential force in the discussion of global climate change. Even so, policy makers are reluctant to challenge her because her global reputation verges on the hagiographic. Conservative Italians denounce her fanatical disciples as gretini—a heavy-handed pun on the Italian word for cretins, cretini. Even so, the joke is directed not at the saintly Greta, but at her overenthusiastic followers. Even in conservative American media, such as Fox News, any critiques of the grandstanding activist are dismissed as unacceptable, on the grounds that she’s just a kid, even though she is now 17 years old.