"katy" wrote in message
. com...
KLC Lewis wrote:

As for how much greenhouse effect is "just right," that is entirely
subjective.

I'm sure the dinosaurs were quite happy with the levvels of greenhouse
gasses present during their existence...as were teh whooly mammoths during
theirs. The earth changes. It always has, it always will and the living
beings on the earth either adapt or die. The onl;y difference between us
and the dinasaurs or mammoths is that we possess the hubris to think we
are capable of changing the earth to any but but slight variances. I'm not
saying that we should not be careful and guard what we do for the
preservationof our own species, but the idea that we are responsible for
global climitazation alone? The facts are that this earth is cyclical and
that it is presently entering a new cycle. Yes, clean up the mess so we
don't have to breathe it, eat it, or live in swill but realize that the
warming and cooling of the earth is beyond our control short of a nuclear
war.

Yup, that's pretty much my feelings on the matter as well. I'm entirely in
favor of converting to "clean" and "green" as much as is economically and
technologically viable, and I'm more than confident that it's a relatively
short matter of time before petroleum is consigned to history. But as you
say, these things are to be done mostly because it's in our own best
interest not to poop in the pool. I'm also confident that if there was a way
that we could extract out own energy directly from the atmosphere with no
need for power companies, power companies would still exist and find a way
to charge us for that power.