正在加载视频...
视频加载失败
A peer-reviewed study showed that the Laschamp geomagnetic excursion triggered abrupt climate change and a mass extinction 41,000 years ago when the Neanderthals vanished. 12,000 years ago, during the Younger Dryas, another geomagnetic excursion — the Gothenburg — brought climate chaos and extinction again. The 8.2-kiloyear event, the Sahara’s... show more
0 条评论
暂无评论
原始帖子的评论将显示在这里
