Replies

The last time CO2 was regularly above 400ppm was three to five million years ago - before modern humans existed.

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hmmmmm..

2 posted on 05/10/2013 1:36:20 PM PDT by NormsRevenge (Semper Fi)

To: NormsRevenge

Exactly what is a modern human? I see advances in technology but there sure are a lot of ignernt peeple out there.

11 posted on 05/10/2013 1:42:55 PM PDT by bigheadfred ( barry your mouth is writing checks your ass cant cash)

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