SSDD
Gold Member
- Nov 6, 2012
- 16,672
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Lame!!!! a two sentence description of a lecture! with no quantifications.
I figured you were bright enough to look further if you were interested...the fact is that no one knows...but we do know...and you should know that if the sun were dimmer, there isn't enough CO2 available on earth to bring it out of an ice age....So what brought the earth out....if not CO2...then what?
For someone who seems bright enough to have stellar critical thinking skills...when it comes to CO2 you seem to go dim...Do you really believe that a deep ice age could be brought to an end by atmospheric CO2? Really?
By the way...do we really have any data on our own sun from back then to support the current hypothesis? We have some snap shots in time of stars similar to our own, but we have a few hundred years of data on our own sun and that's it. Looking at other stars and making inferences to our own sun in its earlier years is really not telling us anything...it is storytelling and little more.