On Nov 5, 12:25*pm, Paul Wilson wrote:
On Nov 4, 3:39*pm, Sam Wormley wrote:









The Dependable Warmer

During the middle of the Eocene, about 40 million years ago, a transient
warming event interrupted the long-term cooling trend that had been in
progress for the previous 10 million years. Bijl et al. (p. 819; see the
Perspective by Pearson) constructed records of sea surface temperature
and atmospheric CO2 concentrations across the warming period. It appears
that vast amounts of CO2 were injected into the atmosphere, and a sea
surface temperature increase of as much a 6°C accompanied the
atmospheric CO2 rise.

http://www.sciencemag.org/cgi/conten...t/330/6005/819

Transient Middle Eocene Atmospheric CO2 and Temperature Variations
Peter K. Bijl,1,*, Alexander J. P. Houben,1,*, Stefan Schouten,2 Steven
M. Bohaty,3 Appy Sluijs,1 Gert-Jan Reichart,4 Jaap S. Sinninghe
Damsté,2,4 Henk Brinkhuis1

"The long-term warmth of the Eocene (~56 to 34 million years ago) is
commonly associated with elevated partial pressure of atmospheric carbon
dioxide (pCO2). However, a direct relationship between the two has not
been established for short-term climate perturbations. We reconstructed
changes in both pCO2 and temperature over an episode of transient global
warming called the Middle Eocene Climatic Optimum (MECO; ~40 million
years ago). Organic molecular paleothermometry indicates a warming of
southwest Pacific sea surface temperatures (SSTs) by 3° to 6°C.
Reconstructions of pCO2 indicate a concomitant increase by a factor of 2
to 3. The marked consistency between SST and pCO2 trends during the MECO
suggests that elevated pCO2 played a major role in global warming during
the MECO".

It has long be known there were two other spikes in temperatures, one
at 45Mya and another at 39.5MYa (not large ones, these are relatively
small compared to others but nonetheless).

However this study has CO2 levels which are way, way off the charts.

One period is 6,918 ppm (ranging from 5,560 to 8,250 ppm)

I've noticed before this CO2 method produces wild swings in estimates
(including values near Zero) so I have stopped using the numbers
produced by it.

Off the charts you say !,tell me,Sam indoctrinates these poor students
in Ames,Iowa where there is a 60 degree F differential between January
and July -

http://www.wunderground.com/NORMS/Di...=none&IATA=DSM

Many people come to this forum hoping to skip by fundamental
astronomical principles and facts but soon leave deflated as their
inability to explain basic correspondences trip them up so,to spare
you the usual squirming,when you comprehend fundamental temperature
variations at a human level and within human time frames,in this case
only 6 months,then and only then can you consider any other input.

Empiricists are good at reactions but offer little by way of
discussion or responses as it reveals how little people comprehend
climate,weather and any difference between them.Astronomers would have
put a stop to that CO2 racket long ago but currently they refuse to
use their doctorates or interested adults with talent have yet to
appear.As for you and CO2,well....