带着这些问题，哥本哈根共识（Copenhagen Consensus，我是负责人）请了一批世界顶尖经济学家评估了诸多不同目标的经济、社会和环境方面的成本效益。
With these questions in mind, the Copenhagen Consensus (which I direct) asked some of the world’s top economists to assess the economic, social, and environmental costs and benefits of many different targets.