(Sign up for the Green Daily newsletter, your best source for climate news and insights on the latest in science, environmental impacts, zero-emission tech and green finance.)China and the U.S. vowed to work together to slow global warming, issuing a surprise joint statement Wednesday that injects new momentum into the last days of global climatenegotiations. The deal also marks a rare moment of cooperation between superpowers locked in geopolitical rivalry and who seemed at odds for most of the two-week talks in Glasgow,Scotland.
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