New York (CNN Business) Time magazine has chosen Greta Thunberg, a Swedish climate crisis activist, as person of the year.

individual to be recognized. She gained international attention for excoriating world leaders for their inaction in the climate crisis in a Thunberg, 16, is the youngestindividualto be recognized. She gained international attention for excoriating world leaders for their inaction in the climate crisis in a viral speech she made at the UN Climate Action Summit in September. She criticized world leaders again at the COP25 conference last week.

"Thunberg has become the biggest voice on the biggest issue facing the planet—and the avatar of a broader generational shift in our culture that is playing out everywhere from the campuses of Hong Kong to the halls of Congress in Washington," Time editor-in-chief Edward Felsenthal wrote

Each year, the magazine features the most influential person, group, movement or idea of the previous 12 months. Last year, it was "The Guardians," a group of journalists who have been targeted or assaulted for their work. In 2017, it was "The Silence Breakers," the group of people who came forward to report sexual misconduct. This marks the third year in a row in which Time has named a person who was not a world leader. President Donald Trump was Person of the Year in 2016 and Germany chancellor Angela Merkel was recognized the year before that. The magazine has also featured unpopular figures like Adolf Hitler, Ayatollah Khomeini and Joseph Stalin as Person of the Year.

"We describe it as the person who influenced the years' events most, for better or for worse. But I really think of it as Time is about the people and ideas that shape the world and Person of the Year is about the people who shaped the year," Felsenthal told CNN Business in an interview this week.

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