On 05/12/2011 03:07 PM, RHF wrote:
On May 12, 5:09 am, wrote:
On 05/11/2011 06:18 PM, RHF wrote:

What Do Those 'Other' 499K Years Show : Lots of
'Climate Change' and in-fact Greater 'Climate Change's
"Pre" Man's Industrial Age.
* Real Hot Spells {not just Warming; but "Hot"}
* Real Cold Spells {not just Cool; but "Ice Ages"}
and... All Without Man-Kind.
-oops- another inconvenient 'climate change' fact

The PPM for CO2 has never been above 290 until we started pumping coal
smoke into the air. It's been higher in the distant past, but never this
high with humans around.

http://artofteachingscience.org/images/arton2481.jpg

Dave - Re-Read Your Own Source Evidence {Chart}
2~3 Peaks as High or Higher.

Once to 297 PPM 300,000 years ago. Still nowhere near what we have today.