There is an ongoing discussion on solar cells and the rate of return of
energy (reasonable I think is the consensus, especially for amorphous
silicon) in http://groups.yahoo.com/group/energyresources/ This is a Yahoo
group concerned about energy resources and the end of oil.
Other groups are Alas Babylon (http://groups.yahoo.com/group/AlasBabylon/),
Running on Empty (I am not currently a member as it seems a bit too
survivalist) and Running on Empty - OZ.(
http://groups.yahoo.com/group/roeoz/) .
They are all very interesting reading and the future (the near future even)
looks very bleak. The only consolation, if consolation it be, is that there
is at least chance that mankind will top off the extinctions we are
currently causing, by topping our own species.
I lived in Canada for some year and as one walked though the Canadian forest
I always used to be amazed to think that 10,000 years back I would have been
under a mile of ice. In the same way, I know that life will survive.
Best regards
Tim Murphy
-----Original Message-----
From:
Behalf Of Dave Torr
Sent: Saturday, 31 July 2004 3:20 PM
To:
Cc:
Subject: Mass breeding failures among northern
seabirds
It's incentives to reduce energy consumption they need - not necessarily the
switch to solar! Funny how when alternative energy sources are proposed
(wind farms, hydro electric) there always seems to be associated
environmental costs and lots of complaints. As for solar - I am not an
expert but I remember reading not too long ago that currently solar cells
take more energy to make than they ever return - does anyone know if this is
still true??? And of course using solar to heat water for generators takes
lots of space - just clear another few forests to make room?
..................
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