Assessing climate ambition based on what a country says rather than what it does or is likely to do is a problem, I argue in @science.org. In how we understand NDCs we run the risk of a climate 'ambition trap'
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Avoiding the climate “ambition trap”
At the United Nations General Assembly in September, President Xi of China delivered a noteworthy update in what has been a dismal year for climate news: China would reduce its greenhouse gas emission...