Re: Science Fiction: Global Warming and Physics

On Aug 6, 5:24 am, Stewart Robert Hinsley <{$new...@xxxxxxxxxxxxxxxxx>
wrote:
In message
<745a9533-c810-469d-9088-f590da67e...@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
Shawn Wilson <ikonoql...@xxxxxxxxx> writes

On Aug 5, 7:37 am, Stewart Robert Hinsley <stew...@xxxxxxxxxxxxxxxxx>
wrote:

Point 1: I'm not denying that a bit of global warming is currently
ocurring. Simply that it doesn't appear to be of much significance.
And that we have no idea whether it will continue or not. Scientists
should find something more useful to do with their time and resources
than speculate about it.

Out of curiosity, what mechanism do you propose prevents the addition of
greenhouse gases to the atmosphere from leading to an increase in the
surface temperature? (Hint: saturation isn't such a mechanism.)

Sure it is. Once you have absorbed all the energy in frequency range
x-y, adding more of the stuff that absorbs energy in range x-y isn't
going to increase temps any. There's no more energy to be absorbed.

There's two flaws with that assertion. Apart from the matter that you
neglected radiation outside the range x-y, the absorbed energy doesn't
just disappear - it still has to escape to space. It makes a difference
how may times (on average) the radiation is absorbed and reradiated on
its way to space.

This has been explained to Mr Wilson before. In particular,
if his idea was correct, the sun would not be hot enough
at the core to sustain fusion as photons, being absorbed
once and only once, would escape to space from the
core in a few seconds. The earth would then have a
climate with an average temperature only slightly above
the cosmic background (I assume that the sun would still
emit some microwave radiation owing to the heat of its
formation).

http://www.phys.lsu.edu/students/brunner/project.html

William Hyde

.

Relevant Pages

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