April 08, 2013

Looking back to Snowball Earth* and the role CO2 played in starting and ending global freezing.
"Modern day levels of carbon dioxide, far from being alarmingly high, are dangerously low."
*700-odd million years ago when there was a global ocean icecap 200 feet thick.
ht @TheGWPF [ArthurK]

Posted by Open Blogger at April 8, 2013 12:48 PM
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