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Swedish climate activist Greta Thunberg, seen here during a climate change demonstration outside the U.S. Supreme Court in Washington Sept. 18, 2019, said the upcoming COP26 United Nations climate summit requires unflinching honesty about "the gap between what we are saying and what we are actually doing" to reduce greenhouse gas emissions. (CNS photo/Kevin Lamarque, Reuters)

Swedish climate activist Greta Thunberg said the upcoming COP26 United Nations summit requires unflinching honesty about "the gap between what we are saying and what we are actually doing" to reduce greenhouse gas emissions. (CNS photo/Kevin Lamar)