World Climate activist Greta Thunberg detained by police in Germany while protesting January 17, 2023January 17, 2023Jordan Mendoza, USA TODAYComments Off on Climate activist Greta Thunberg detained by police in Germany while protesting Greta Thunberg, 20, was in western Germany to protest the demolition of a village for a coal mine when police detained her. Here's what we know.