Environmental activist Greta Thunberg, center, of Sweden, walks with an entourage after passing a security checkpoint while appearing at the United Nations, Monday, Sept. 23, 2019 in New York. (AP Photo/Mark Lennihan)
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Environmental activist Greta Thunberg, center, of Sweden, walks with an entourage after passing a security checkpoint while appearing at the United Nations, Monday, Sept. 23, 2019 in New York. (AP Photo/Mark Lennihan)
