Reuters: Hundreds of people took to the streets of the Chinese city of Kunming on Saturday to protest against the planned production of a chemical at a refinery, in the latest show of concern over the effects of rapid growth on the environment. China's increasingly affluent urban population has begun to object to the model of growth at all costs that has fuelled the economy for three decades, with the environment emerging as a focus of protests. Photographs on Weibo, China's version of Twitter, showed a...