This article explores children’s resistance in relation to the climate emergency through a thematic analysis of climate activist Greta Thunberg’s speeches. Two themes, new to the literature, are identified: (1) need for political and social change focusing on the climate emergency, resistance towards laissez-faire behaviour and exhortations, and (2) resistance targets including the political leaders, capitalist ideologies and older generations. This illustrates the power of children in expressing abstract progressive resistance.