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Sweden's Prime minister Stefan Lofven, left, Bulgaria's President Rumen Radev and Greece's Prime minister Alexis Tsipras, right, talk on the boat leading to the One Planet Summit, Tuesday, Dec.12, 2017, in Boulogne-Billancourt, outside Paris. World leaders, investment funds and energy magnates promised to devote new money and technology to slow global warming at a summit in Paris that President Emmanuel Macron hopes will rev up the Paris climate accord that U.S. President Donald Trump has rejected. (Ludovic Marin, Pool via AP)

Technology

Technology

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