Dorjee, a 45-year-old herder in Golog Tibetan Autonomous Prefecture in Qinghai Province, northwest China, is relieved to see the pasture in the region, where he grazes his herd, is once again covered with grass as high as his knees. More than a decade ago, he had to sell all his 200 yaks and look for odd jobs when the grassland deteriorated and there wasn't enough to feed the animals.