Global warning: The UN sounds the alarm on climate change

The UN has just released its annual report on how well the fight to slow climate change is going. It finds that efforts to reduce greenhouse-gas emissions are going from bad to worse. We also look at a surprising new lease on life for China’s regional dialects. And while people debate about the merits of Uber, one thing is clear -- it drives people to drink -- or so new research suggests. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer

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