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  • From: VAN DELL JORDAN <vdjor AT yahoo.com>
  • To: homestead AT lists.ibiblio.org
  • Subject: Re: [Homestead] gas prices
  • Date: Thu, 7 Jun 2007 13:54:07 -0700 (PDT)

I'm sorry I don't remember the source on that. As far
as I know most of the sunlight warms the air and is
dissapated something like a room that isn't insulated.
If I remember from that and other sources less than
10% (maybe even much less) of the sun's engergy
actually is retained in the earth for any time. A
solar collector would retain something more than that.
This would only have an effect on a very large scale.
Once again I'm not suggesting that use of solar power
is a bad idea. It is something that we need to work
on.
Van Dell


--- Marie McHarry <mmcharry AT gmail.com> wrote:

> On 6/7/07, VAN DELL JORDAN <vdjor AT yahoo.com> wrote:
> > There is, of course, a downside to everything.
> I've
> > seen a study that indicated that, if solar became
> our
> > primary source of energy, much of the sun's heat
> that
> > currently is reflected away, would be retained on
> the
> > earth. So much heat would be retained that could
> > cause it's own global warming.
>
> Can you remember who did the study? It seems that
> sunlight either
> reaches Earth or is reflected away. If it hits a
> plant, then the
> energy is transformed, but it's still on Earth. I'm
> curious to know
> how that would work (unless the solar collectors
> were outside the
> atmosphere?)
>
> Marie
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