Greta Thunberg is TIME magazine's Person of the Year. The 16-year-old from Sweden beat the Hong Kong democracy protestors. She became famous in 2018 after she went on a climate strike outside Sweden's parliament. This started a global climate movement. Schoolchildren worldwide followed her example. Since then, she has spoken to the United Nations and met the Pope. After hearing about the award, she said: "Wow, this is unbelievable!"
Greta Thunberg is the youngest winner of the award. TIME said Greta changed millions of people's attitudes. She got people to join a "worldwide movement calling for urgent change". It added that Greta got people to act, and shamed those who wouldn't act. Donald Trump Jr said Greta's award was "a marketing gimmick". In contrast, Hillary Clinton tweeted: "I am grateful for all she's done to raise awareness of the climate crisis."