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The Environment / What is the meaning of 400 ppm (0.04%) atmospheric CO2?
« on: 11/05/2013 04:04:01 »
For quite some time we've been getting close to 400ppm atmospheric concentration of CO2.
They said on the Radio that it has finally hit that level.
http://www.esrl.noaa.gov/gmd/dv/iadv/graph.php?code=MLO&program=ccgg&type=ts
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I've been missing fine detail long-term CO2 estimates over the past few million years. They suggested this level had occurred about 2 million years ago.
If we truly were at these levels 2 million years ago, it would have occurred around the time we were plunging into our current glacial/interglacial cycles.
http://en.wikipedia.org/wiki/Geologic_temperature_record
So, what does this all mean to humanity?
They said on the Radio that it has finally hit that level.
http://www.esrl.noaa.gov/gmd/dv/iadv/graph.php?code=MLO&program=ccgg&type=ts
[ Invalid Attachment ]
I've been missing fine detail long-term CO2 estimates over the past few million years. They suggested this level had occurred about 2 million years ago.
If we truly were at these levels 2 million years ago, it would have occurred around the time we were plunging into our current glacial/interglacial cycles.
http://en.wikipedia.org/wiki/Geologic_temperature_record
So, what does this all mean to humanity?