A New Ice Age Was Beginning. Then Humans Started Burning Fossil Fuels
Ancient plants reveal that the vestiges of the North American ice sheet started expanding a few thousand years ago, but that climate change caused it to reverse course.
点赞
收藏
点踩
分享评论
?
参与讨论
Ancient plants reveal that the vestiges of the North American ice sheet started expanding a few thousand years ago, but that climate change caused it to reverse course.