A train transporting salt from a salt producing factory passes Chaka Lake in west China's Qinghai province...
A train transporting salt from a salt producing factory passes Chaka Lake in west China's Qinghai province May 5, 2007. Chaka Lake, holy to ethnic Tibetans, is shrinking, hit by decreased rainfall and desertification partly caused by overgrazing. REUTERS/Simon Zo (CHINA)