This is the third of a special three-part series of investigations jointly run by chinadialogue and Yale Environment 360 with the support of the Pulitzer Center on Crisis Reporting. You can also read parts one and two.Luo Jinzhi is 52 and lives in the village of Shuangqiao, in China’s Hunan province. For the last few years, Luo has been a petitioner, one of millions of Chinese