Greta Thunberg born 3 January 2003 is a Swedish climate activist. In August 2018, she became a prominent figure for starting the first school strike for climate outside the Swedish parliament building, raising awareness of global warming. In November 2018, she spoke at TEDxStockholm, and in December 2018 she addressed the United Nations Climate Change Conference. Here she talks to the World Economic Forum in Davos in January 2019.