The #FridaysForFuture (FFF) climate protests mobilized more than 1.6 million people around the globe on 15 March 2019. Media coverage of these protests and high-level national and international political meetings involving the movement’s icon, Greta Thunberg, illustrate a level of global attention that no previous youth movement has ever received. A team of social scientists from universities across Europe organized a survey of the March global FFF strike event in 13 cities. Results from this survey will be presented and analysed with a focus on variations in participant motives and the meanings participants assign to the protest.