Sand and dust weather is frequent, is the ecological shelter still functioning? Experts respond. Sandstorms are actually an international phenomenon, and international cooperation is necessary for governance.

Sand and dust is a long-distance transport phenomenon, when the weather system in the north is very strong, the sand and dust outbreak location is just in the main sand source. It is not a particularly rare thing, even if it affects some southern regions of China, says Gui Hailin, chief forecaster of the Central Meteorological Observatory.