Wherever you like with wood. Even easier with limestone etc.
I mean, stooging about this
Plenty that can be planted with trees. Sure, that would fuck the
environment there but we werent discussing the environment,
just reducing net gg emissions.
Yes, there would still be a problem with aircraft but obviously
we could just stop flying so much and telecommute etc instead.
You're not making any sense. Limestone doesn't absorb CO2. To absorb
CO2 to make limestone you need lime. Where are you going to get it?
Getting it from seawater reduces the ability of the seawater itself to
absorb the CO2 already in the atmosphere, so will actually make things
worse. I ask again, where are you going to get the lime?
It's quite an interesting question. Farming oysters is a good way to
make limestone, but where do the calcium ions come from? Presumably,
from the weathering of existing rocks. Feldspars are aluminosilicates
and can contain calcium, so there is plenty of it available in
continental crust. But ions are only liberated at a certain rate by
weathering. Does the existing marine fauna already effectively fix all
the available calcium ions, or might there be scope to "fix" more carbon
dioxide? Apparently the calcium level in seawater is about 400 ppm.
Just did some back of envelope sums and it looks as though that's enough
to "fix" 6e17 kg of carbon dioxide, or 300 times the total amount of
carbon dioxide in the atmosphere.
Oysters it is, then.
Seawater is naturally slightly alkaline. It contains squillions of
tons of calcium, derived as you said from calcium-bearing rocks. It
has immense buffering capacity. The various equilibria between calcium
ions in solution and CO2 in the atmosphere above it are several and
complex. This article touches on the problem and suggests that the
oceans are capable of absorbing massive amounts more of CO2 than they
already have, and that ocean acidification is in reality unlikely to
happen any time soon, unlike what we keep hearing from the alarmists.
https://tinyurl.com/yy5vtt55 More here https://tinyurl.com/ycrblwue
and your oysters are safe https://tinyurl.com/yxesz6pe
On Fri, 14 Jun 2019 10:27:13 +0100, The Natural Philosopher
So, you precipitate the calcium as lime, by raising the pH using
caustic soda obtained by electrolysis of sea water, using electricity
from nukes? That's a hell of a complicated route, unless you can
short-circuit it and get the lime by direct electrolysis. Whatever, it
ain't going to be anywhere sufficient to lower atmospheric CO2 levels
by more than a gnat's whisker.
I see that there are many proposals for lowering atmospheric CO2 by
_adding_ lime to seawater (ignoring the environmental side effects,
that is!), not by taking it out. https://tinyurl.com/y4yhxcpe , which
rather kills the idea of getting lime by that route.
So Jimbo, where's the feed for your limestone production coming from?
We aren't discussing lowering atmospheric CO2 levels, we are
discussing avoiding adding the minimal CO2 that is involved
with the production of nukes and electric cars so the UK stops
adding ggs to the atmosphere.
From seawater, as he said. Yes, that is a completely stupid
thing to do, but we are discussing whether the completely
stupid approach of no longer adding ggs to the atmosphere
is possible, not whether it makes sense to do that.
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