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FILE - In this Nov. 28, 2019 file photo, smoke and steam rise from a coal processing plant in Hejin in central China's Shanxi Province. Chinese President Xi Jinping says his country will aim to stop pumping additional carbon dioxide, the main global warming gas, into the atmosphere by 2060. Xi's announcement during a speech Tuesday, Sept. 22, 2020,  to the U.N. General Assembly is a significant step for the world's biggest emitter of greenhouse gases and was immediately cheered by climate campaigners. (AP Photo/Sam McNeil, File)

China, top global emitter, aims to go carbon-neutral by 2060

Sep. 22, 2020 8:30 PM EDT

UNITED NATIONS (AP) — Chinese President Xi Jinping says his country will aim to stop adding to the global warming problem by 2060. Xi's announcement during a speech Tuesday to the U.N. General Assembly is a significant step for the world's biggest emitter of greenhouse gases. Calling for a “green...