Actually it's not istead of, but more likely at 0.01% of, as even 1%
of 18 billion is a whopping 180 million per year, of which I'd take
that in a flash.

This is also instead our of messing up another good thing by
terriforming Venus (of which we know little if anything about doing,
at least not without our inflicting far more harm than good), of how
about just dealing with what's already there, as in 625°K nighttime at
the elevation of 5 km.

Under a pressure of 75+ bar, 625°K is toasty but actually it isn't all
that bad, thereby folks like yourself certainly do not require all
that much O2%, although a tonne of refrigeration could certainly
improve upon your personal environment. Though why intentionally
contaminate another world with human arrogance and utter stupidity?

This perception or perhaps distortion of limitation tied to our O2
concentration needing 21% is simply not the case while surviving under
such pressure, as I've got perfectly good records of actively working
humans surviving quite nicely on 4% O2, I believe that was starting in
at 5 bar absolute. The more the pressure the less O2% requirement and,
that's a well proven fact. There's many other examples of significant
other life surviving at extremely low O2, that's including several
examples surviving within a relatively high CO2 environment and/or of
sulphur dioxide, that's not even to mention deep sea life.
http://guthvenus.tripod.com/venus-air.htm


*Energy; the holy grail of life as we know it:*
As for acquiring energy certainly isn't a difficult task, at least not
on Venus.
On Venus there's more CO2 density and pressure differential per
vertical km than you can shake a flaming stick at. That's a whole lot
of highly worthwhile vertical kinetic energy on steroids. How many GW
would you like?

BTW; having a source of relatively thick or dense CO2, unless you're
an absolute Borg moron, makes for a rather terrific refrigerant and/or
heat-exchanging medium and, obtaining R-256 of thermal isolation from
merely conduction mode heat is certainly within our grasp, not to
mention the process of CO2--CO/O2 that'll provide all the O2 you
could possibly need, as well as the fuel/energy of the CO component,
more than enough to power-up any rigid airship and for accommodating
those nice lizard folk passengers and crew that are capable of
cruising throughout their crystal clear atmospheric ocean of CO2,
preferably doing such within their season of nighttime and, of mostly
accomplishing this task within the relative calm that's below those
relatively cool nighttime clouds.
http://guthvenus.tripod.com/energy-options.htm
http://guthvenus.tripod.com/co2-windpower-03.htm

If there's something that's absolutely negative and so totally
unresolvable about sustaining life on Venus, I'd certainly like to
hear about it. As so far, there's nothing of physics 101 that's
excluding upon what's possible, nor of Darwins' biology 101. Of
course, having a good enough surface image that's depicting of what's
most likely artificial than not is certainly offering yet another
positive consideration, one that's at least as valid as those
justifying the likes of the USS LIBERTY fiasco and of those still
claiming as to have seen all those WMDs, and just look at what all
that's cost us and worse, of where we're headed.

Perhaps instead of super-funding an already surplus US cotton cartel
with another 18 billion dollars per year subsidy, we might actually be
somewhat better off by investing 0.01% of that amount upon improving
relationships with our closest and most Earth like planet. At least
Venus isn't frozen and otherwise thoroughly irradiated to death like
Mars and, Venus literally has if anything way too much energy to burn.

If you must insist upon spending those big bucks, there's always a
lunar space elevator: This following page remains somewhat confusing,
but I believe it's less so than my first space elevator attempt.
http://guthvenus.tripod.com/gv-cm-ccm-01.htm

As opposed to extremely long term investing into any Earth based space
elevator:
http://guthvenus.tripod.com/gv-edwards-se.htm

Regards, Brad Guth / IEIS~GASA / Discovery of LIFE on Venus
http://guthvenus.tripod.com/gv-town.htm