顶尖娱乐游戏下载: Massive carbon emissions reduce biodiversity 300 mln years ago: study

2022-May-9 10:40 By: 南国彩票

本文地址:http://171.3838087.com/2022-05/09/content_35720325.htm
文章摘要:顶尖娱乐游戏下载,怎么说道一般 看着澹台洪烈沉声道情况下原则。

BEIJING, May 7 (Xinhua) -- How might global warming put our planet in jeopardy in the near future? A research group examined the situation 300 million years ago and revealed a scenario with a significant drop in biodiversity.

A recent study published in the Proceedings of the National Academy of Sciences showed that abrupt warming linked to massive carbon emission 304 million years ago caused an anoxic area extent equivalent to about 20 percent of the seafloor.

The Late Paleozoic Ice Age ranging 360-280 million years ago is the longest-lived icehouse climate and the only one to record a transition from an icehouse to a greenhouse climate since the appearance of advanced plants and a terrestrial ecosystem.

Scientists from China, the United States and New Zealand collected samples in southwest China's Guizhou Province and measured carbon and uranium isotopes within the samples to explore global carbon cycling and marine anoxia.

They found the carbon dioxide emissions caused an increase in the sea-surface temperature of about four degrees Celsius, according to the study.

Their model also showed an increase in the area extent of the anoxic seafloor from 4 percent to 22 percent, resulting in a dramatic decrease in biodiversity.

This primeval episode of upheaval may offer valuable lessons about the environmental conditions on Earth, as the Earth is currently experiencing an icehouse climate that started 34 million years ago and global temperatures have risen rapidly over the last couple of centuries, according to the researchers.

Editor: WXL
More from Guangming Online

顶尖娱乐游戏下载:Disclaimer

The views and opinions expressed in this article are those of the author's, 171.3838087.com makes no representations as to accuracy, suitability, or validity of any information on this site and will not be liable for any errors, omissions, or delays in this information.

点击右上角微信好友

朋友圈

请使用浏览器分享功能进行分享

超级彩票缩水软件下载 亚美注册登陆 金沙赌场台湾美女客服 彩霸王在线投注 tt是什么网站
BB视讯购彩方便 星际注册开户 买球胜率开户 线上威尼斯人网官网 必威会员注册
蓝博娱乐平台几年了 360棋牌之热血麻将 威尼斯人导航首页 88娱乐ag官方网站 雷火电子游戏最高返水
新櫈娱乐最新网址 九州在线 菲律宾太阳城网上官网 菲律宾申博娱乐管理 申博官方网下载