Economist: FAITHFUL readers of this newspaper will know that China is the worlds worst polluter. So it should come as no surprise that the country fares poorly on some important measures of pollution in a new global index of environmental performance. The shock is that it also stands out from the pack for its world-beating greenness in other areas on the same index.
The 2014 Environmental Performance Index (EPI), a joint effort by Americas Yale and Columbia universities, was released at the World Economic...