Swedish climate activist Greta Thunberg was named Time magazine’s person of the year for showing “what it might look like when a new generation leads.” She’s seen here at the COP25 Climate Conference in Madrid on Wednesday.

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Greta Thunberg, the activist who has quickly become a leading voice on climate change, is Time’s Person of the Year for 2019. At 16, she is the youngest person to earn the title in the magazine’s 92-year history.

Thunberg burst onto the world stage in the past year, organizing school strikes and protest marches to call attention to a climate crisis that she says older generations are not taking seriously enough.

She has famously called out world leaders for debating scientific facts and failing to stop a global warming trend that will affect the world’s children more than it affects anyone who’s currently in power.