Greta Thunberg is a Swedish climate activist who, as a schoolgirl at age 15, began protesting outside the Swedish parliament about the need for immediate action to combat climate change. She has since become an outspoken and world famous climate activist.

She is known for having initiated the school strike for climate movement that formed in November 2018 and surged globally after the United Nations Climate Change Conference (COP24) in December the same year. Her personal activism began in August 2018, when her recurring and solitary Skolstrejk för klimatet ("School strike for the climate") protesting outside the Swedish parliament in Stockholm began attracting media coverage, even though Sweden has already enacted "the most ambitious climat