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Megacities key to reaching global climate goals

MEXICO CITY: The world's big cities must collectively cut their carbon footprint by nearly half within a decade if global climate goals are to be met, according to an analysis unveiled Thursday. Without aggressive measures by cities, the 196-nation Paris Agreement to curtail global warming "cannot be realistically delivered," according to Mark Watts, executive director of C40, a global network of large cities. "The next four years will determine whether or not the world's megacities can deliver their part," he said. The…