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Pope Francis greets Swedish climate activist Greta Thunberg during his general audience in St. Peter's Square at the Vatican April 17, 2019. (CNS photo/Yara Nardi, Reuters)
Pope Francis greets Swedish climate activist Greta Thunberg during his general audience in St. Peter's Square at the Vatican April 17, 2019. (CNS photo/Yara Nardi, Reuters)