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At U.N. Climate Summit, U.S. Stands Alone

On Wednesday in New York, countries lined up to say they would accelerate their efforts to cut greenhouse-gas emissions. In staying away, the U.S. was all but alone.

© Bing Guan/Reuters

Speaking Tuesday at the United Nations, Mr. Trump urged the world to buy more U.S.-produced oil and gas. A refinery in Los Angeles.
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