『The last time carbon dioxide concentrations were around 400ppm: a snapshot from Arctic Siberia』へのコメント

The meaning of 400ppm.

rdaneelolivaw のブックマーク 2013/05/20 16:11

<blockquote class="hatena-bookmark-comment"><a class="comment-info" href="https://b.hatena.ne.jp/entry/146392858/comment/rdaneelolivaw" data-user-id="rdaneelolivaw" data-entry-url="https://b.hatena.ne.jp/entry/www.skepticalscience.com/news.php?n=2016" data-original-href="http://www.skepticalscience.com/news.php?n=2016" data-entry-favicon="https://cdn-ak2.favicon.st-hatena.com/64?url=http%3A%2F%2Fwww.skepticalscience.com%2Fnews.php%3Fn%3D2016" data-user-icon="/users/rdaneelolivaw/profile.png">The last time carbon dioxide concentrations were around 400ppm: a snapshot from Arctic Siberia</a><ul class="comment-tag" style="list-style: none; margin: 0px;"><li style="float: left">[<a href="https://b.hatena.ne.jp/q/%E6%B0%97%E5%80%99%E5%A4%89%E5%8B%95">気候変動</a>]</li><li style="float: left">[<a href="https://b.hatena.ne.jp/q/%E7%A7%91%E5%AD%A6">科学</a>]</li><li style="float: left">[<a href="https://b.hatena.ne.jp/q/%E5%BD%B1%E9%9F%BF">影響</a>]</li><li style="float: left">[<a href="https://b.hatena.ne.jp/q/CO2%E6%BF%83%E5%BA%A6">CO2濃度</a>]</li></ul><br><p style="clear: left">The meaning of 400ppm.</p><a class="datetime" href="https://b.hatena.ne.jp/rdaneelolivaw/20130520#bookmark-146392858"><span class="datetime-body">2013/05/20 16:11</span></a></blockquote><script src="https://b.st-hatena.com/js/comment-widget.js" charset="utf-8" async></script>

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