Dan Luke wrote:
On Thu, 10 Apr 2008 18:35:05 -0500, Jim Logajan wrote:
Even at today's low PV efficiencies, there appears to be adequate area
to use solar energy to power human civilization on this planet.


And no one except those unable to understand more than one concept at
a time thinks this is being proposed.

Quite.

The whole point of my post was not that, but to point out that the OP's
complaint that solar requires too much surface area to be viable was
without foundation. I simply used the most extreme case (powering all of
human civilization with solar power) to show that even in that edge case
there was more than adequate land area. (I feel I am repeating myself.)

Some P-V, some solar thermal, some geothermal, some wind, some hydro,
some nuke, some algae-diesel; pretty soon we're telling OPEC to go
**** up a rope.

Diversification has its advantages.

(By the way, I could go through the steps to prove that adequate uranium
sources exist to allow nuclear energy to power all of human civilization
for hundreds of thousands of years. The universe, and even just our planet,
is full of energy sources.)