Re: Abelard's Question: What warms the Day, Sun or CO2 ?

On Sat, 28 Mar 2009 16:17:26 +0000, Blue <blue@xxxxxxxxx> wrote:

abelard wrote:

i'm reasonably comfortable with that lot...however, i'd like to
understand it better...
(note :even in your diagram there's a lot of absorption band
to the right)

now, why do you believe those bands are saturated?

i'm assuming that the radiation scatter is in every direction...
i'm assuming the more the radiation encounters molecules, the
lower its energy becomes....i'm assuming that this doesn't just
stop as it's radiated up through the atmosphere....i'm assuming
that it has the potential to encounter many other molecules as
it moves towards the top of the atmosphere....

therefore what started out as one wavelength other opportunities
to move towards wavelengths that co2 do interact with....
thus i'm unsure why 'saturation' of the co2 wavebands should be
greatly relevant....(esp with the large co2 wavebands at the
lower energy end)....
i can easily accept that each doubling of co2 includes some
diminishing returns....but with the thinness of dispersion of co2
in the atmosphere, i'm struggling to believe that part of the
spectrum is close to fully expressed...
further, there remain all the feedbacks...and even other ghgs

please correct any of my assumptions that are unsound...

Carbon Dioxide lasts about 5 years in the Atmosphere.

This means we could we could stop pumping out CO2 tomorrow
and everything would be just fine and back to normal in 5 years.

what i read suggests hundreds of years and 10,000 plus to get back to
where we were

--
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