Asian News International: Scientists have determined that glaciers that serve as water sources on the Qinghai-Tibet plateau in Southwestern China are melting at a worrisome speed, having receded 196 square km over the past 40 years. The decline is equal to about one-fourth of the size of New York City. According to Xin Yuanhong, senior engineer in charge of a three-year field study of glaciers in the region, glaciers at the headwaters of the Yangtze, China’s longest river, cover 1,051 square km, down …