[Terrapreta] expansion

[Sean K. Barry]

Hi Greg,

That formula for degrees change in Fahrenheit (5.35 * ln(Ct/C0)) is well tested (see http://en.wikipedia.org/wiki/Radiative_forcing<http://en.wikipedia.org/wiki/Radiative_forcing>).
It has been validated for the change in temp vs CO2 since CO2 and temp were both being measured since circa 1820).  The estimates of percent species loss due to temperature increases as large as 9 degrees C are documented in the fossil record.  Why don't you see if you can cite a source for that?

1000 ppm of CO2 would be 4 times higher than it has been in at least 650,000 years.

Regards,

SKB
  ----- Original Message ----- 
  From: Greg and April<mailto:gregandapril at earthlink.net> 
  To: Sean K. Barry<mailto:sean.barry at juno.com> ; Terra Preta<mailto:Terrapreta at bioenergylists.org> 
  Sent: Monday, June 02, 2008 5:19 PM
  Subject: Re: [Terrapreta] expansion


  And this is based on what hard data?

  Greg H.

    ----- Original Message ----- 
    From: Sean K. Barry<mailto:sean.barry at juno.com> 
    To: Terra Preta<mailto:Terrapreta at bioenergylists.org> ; lou gold<mailto:lou.gold at gmail.com> 
    Sent: Monday, June 02, 2008 14:42
    Subject: Re: [Terrapreta] expansion


    Hi 'terrapreta' list,

    Read this article!  This is scary shit boys and girls.  If atmospheric CO2 concentrations rise to 1000 ppm, then the annual global temperature average will increase by ... 5.35 * ln(1000/387) = 5.08 degrees F (or 9.14 degrees C).  Most living species of plants, animals, insects, and microorganisms on land, in the sky, and in the water will become extinct (> 95%) when this happens.   This includes humans, unless we learn to eat hot dirt and sand to survive.
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