Times are good for Fey Wei Dong. A genial, middle-aged businessman based in Hangzhou, Fey says he is raking in the equivalent of $225,000 a year from trading in the humblest of commodities: sand.I met Fey recently in a fishing village on Poyang Lake, China’s biggest freshwater lake and an essential haven for millions of … Continue reading Is Shanghai’s Appetite for Sand Killing China’s Biggest Lake?