"bill" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
>
>> > A quick googling turns up this:
>> > http://irina.eas.gatech.edu/ATOC5560_2002/Lec26.pdf
>> > You may wish to work through it, and play with the parameters to see
>> > if you can get it to saturate.
>>
>> He won't get it to saturate because it uses a grey atmosphere with bands
>> which do not saturate. The correct model is not grey but striped, with
>> lines that saturate and gaps between them with no absorption. You
>> can't average between infinity and zero, but that's what the current
models
>> do.
>
> Nice isn't it? I caught that too. Make it a little difficult to
> trust those aforementioned models upon which so VERY much is being
> wagered.
Sorry, but where does the infinite term come in? Are you two claiming that
when an absorbtion frequency is saturated models treat it as an infinite
energy block? I would imagine that a saturated band would be absorbing the
total amount of radiation coming through it at that frequency, not an
infinite amount.
>> > As for basing your entire conclusion about the future governance of
>> > the planet's atmosphere on a crude hand-drawn non-reviewed graph of
>> > paleotemperature on the 500 Ma time scale, all the while ignoring
>> > IPCC, perhaps it might be worth reconsidering what you take seriously
>> > and what you dismiss.
>> At least one of the two graphs which make up the diagram to which you
refer
>> were peer reviewed. The other comes from a respected scientist - Scocese.
>> BTW have your lecture notes been peer reviewed?
>>
>> The simple answer is that global temperature is limited to about 22 C by
the
>> formation of clouds. But that is the global temperature and when it
reaches
>> a maximum it is global. In other words the polar temperatures rise to
that
>> level too, and all latitudes from there to the equator. Not nice and only
>> suitable for cold blooded reptiles such as dinosaurs. True the planet
will
>> not turn into another raging Venus, but it could get hot enough for
mammals
>> to drown in the dew forming in their lungs as they try to cool the air
below
>> their blood temperature. It only has to happen on one day and all mammals
>> are extinct. Of course those with air conditioning will survive, but
where
>> will they get their meat to eat?
>
> umm.... 22c is 71 degrees F, 27 degrees F below human body temp,
> and quite comfortable really! Additionally, humans and mammals
This is a common oversight, but please keep in mind that 22C average global
temperature does not mean 22oC everywhere all the time. We can even ignore
regional variation but we are still left with seasonal and diurnal cycles.
So how hot do you think it would be in summer at midday if seasonally and
diurnally average temperature is 22oC?
Coby
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