
Sheep are seen by the Siling Lake in Naqu City, southwest China's Tibet Autonomous Region, April 29, 2020. The frozen surface of the plateau lake in Tibet is thawing with temperature rising up. (Xinhua/Hou Jie)

Sheep are seen by the Siling Lake in Naqu City, southwest China's Tibet Autonomous Region, April 29, 2020. The frozen surface of the plateau lake in Tibet is thawing with temperature rising up. (Xinhua/Hou Jie)