By Katrina Hamlin
The author is a Reuters Breakingviews columnist. The opinions expressed are her own.
China’s smog is visible, and vexes the urban rich. But attempts to fix the looming “airpocalypse” may be exacerbating another acute risk: water. If the country’s planners really want to make growth sustainable, they will need to pull the plug on cheap supply for thirsty energy companies and consumers.