×

Loading...

小时候常听这个臭氧层的漏洞,上大学后这个话题逐渐淡出视野,原来是1987年的全球协议到了90年代中期起作用了,臭氧层在逐年恢复。谁知道今年又开了个大洞,历史上最大。

European scientists recently announced that the annual hole in the ozone layer over Antarctica reached near-record extent in September
Report