Scientists think this haze, which is created by power stations and cooking-fires, may be radiating heat into the lower troposphere, at altitudes in which glaciers are found.

• 科学家们认为，该烟雾产生于发电厂与烹饪用火，可能将热量辐射至较低的对流层中，这一海拔正是冰川之所在。