How 16-year-old Greta Thunberg — Time's 2019 person of the year — became the face of climate activism in just one year

How 16-year-old Greta Thunberg — Time's 2019 person of the year — became the face of climate activism in just one yearGreta Thunberg has met with world leaders, led climate strikes, sailed across the Atlantic, and been nominated for a Nobel Peace Prize.



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