投稿日：2018/02/11(日) 17:25
投稿者：Wilber　[home]　[mail]

I'm sorry, I didn't catch your name xopenex generic Lead author Miguel Martinez-Boti said that their new records also reveal an important change at around 2.8 million years ago, when levels rapidly dropped to values of about 280 ppm, similar to those seen before the industrial revolution