Re: It's become clear to me that "space colony" dreamers don't want to face the hard problems Earth-side


Fred J. McCall wrote:
Ian Parker <ianparker2@xxxxxxxxx> wrote:

:On 26 Jul, 01:31, Einar <eina...@xxxxxxxxx> wrote:
:>
:> And, it also often neglect that fixing things over here may require
:> resources that are beyond Earth´s own supply capabilities.
:>
:
:I think that is absolutely right. Control of global warming will
:ultimately require the control of sunlight from space.
:

This is not the same thing as Einar said. We can do that with purely
Earth-fabricated and Earth-launched material.

:
:Suppose we
:found that we could perform thermonuclear fusion, but that neutrons
:were a bad idea and we needed lots of He3.
:

Why, we would go get some, of course.

:
:Would you need a manned lunar colony? Not necessarily. We would have
:to send self repairing swarms to mine the Moon.
:

We already have such "self repairing swarms". They're called mining
crews.

:
:BTW - Earth is NOT suffering from overpopulation. Demographers say the
:population will peak at just over 9 billion by 2050. In fact in the
:West we are facing an ageing population.
:

Demographics in the West have nothing to do with whether or not there
is overpopulation.


--
"Some people get lost in thought because it's such unfamiliar
territory."
--G. Behn

That is probably what you are talking about, however I´m not entirelly
clear on preciselly what he is proposing to do, when he talks about
Geoengineering Earth´s radiation ballance.
http://globalecology.stanford.edu/DGE/CIWDGE/home/main%20page/People/Caldeira/Caldeira%20downloads/Govindasamy_etal_2003.pdf

What preciselly is he talking about to add to the athmosphere or to
the Earth´s surface?

That paper discusses 'scattering' strategies. I don´t know what the
people you mentioned had in mind:
http://a1692.g.akamai.net/f/1692/2042/1d/investigation.blog.lemonde.fr/files/thse_teller.pdf

Cheers, Einar

.