h a l f b a k e r yExpensive, difficult, slightly dangerous, not particularly effective... I'm on a roll.
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Seed the oceans with genetically engineered floating plants
that
grow, bloom, die & sink, carrying the carbon accumulated
through their growth to the seabed.
They can be selectively bred instead of engineered, doesn't
matter which.
They don't have to be water lilies.
The Last Time the Globe Warmed & How it Might Have Cooled
https://www.youtube...watch?v=ldLBoErAhz4
@ 8:10 On the Tape [Skewed, Sep 23 2019]
Seagrasses
https://blog.nature...ghting-superpowers/
Seagrasses improve water quality [Frankx, Sep 24 2019]
Ocean seeding for carbon sequestration
https://en.wikipedi.../Iron_fertilization
Iron in this case. But others too. [Frankx, Sep 24 2019]
[link]
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We'll need highly voracious fast breeding sea snails to
eradicate the water lilies once we've removed enough carbon. |
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Snail eating frogs to get rid of the snails when
they've done their job. |
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We can eat the frog eating otters ourselves of course. |
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The fur
will be an added bonus if we miscalculate. |
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Add a gene for mercury sequestration (there are several); this
will help reduce mercury levels in seawater and will also help
the things sink. |
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How much carbon do jellyfish blooms sequester ? |
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Can jellyfish be converted to oil ... ? |
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If they can sequester mercury, could they grab lead instead ? |
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Could they produce oil with built-in tetraethyl lead ? |
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Jellyfish are, alas, largely water and lacking in substance,
making them an unpromising feedstock for oil production. In
that respect they resemble politicians. |
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Seagrasses are interesting for this. They're not seaweeds, they're actually flowering plants. |
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Apparently around 20 billion tonnes of carbon is stored in seagrass beds globally, with potential to sequester very much more. |
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On top of that, they remove water-borne pathogens, improving water quality. [link] |
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//Seed the oceans with genetically engineered floating
plants// |
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There are plenty of things in the ocean that grow,
photosynthesize and lock up carbon given the chance,
they already do. Corals are particularly adept, they take
CO2 and use it to make their carbonate skeletons which
end up being rock. Sadly, they're limited by availability of
inorganics such as nitrate, phosphate, iron etc. That's why
all the life in the ocean is right up against land, it's
shallow enough for sunlight penetration and the required
minerals get washed off the land in rivers. |
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//Snail eating frogs to get rid of the snails// |
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There are snail-eating snails which is something of an
elegant feedback loop. |
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//gene for mercury sequestration// |
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related in any way to brassicas? My brother's responsible
for a lot of planting and then dumping in the ocean of
various poor brassicas in cleaning up industrial sites.
Would be useful if the genetics could be transferred to
something like bracken. |
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//planting and then dumping in the ocean// so, more of a
"relocation" than a "cleaning up". |
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Some plants do already sequester mercury, but there are
bacteria that do it better using high-affinity proteins. Stick
one of those genes in a plant and Bob's your heavy metal. |
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//carbonate skeletons// Good point. Seeding the oceans
with fertilisers is probably an efficient way to sequester
CO2 - I wonder how much C you sequester per ton of
nitrophosphosulphur. I bet it's hundreds to one. |
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//There are plenty of things in the ocean that grow// |
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Yes but they're clearly not doing their job, so we need
something that grows faster. |
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//all the life in the ocean is right up against land, it's
shallow enough for sunlight penetration// |
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Which is why we want something floaty, then it can make
use
of all the empty bits, over the Mariana Trench would be
good, more space to
fill up than just dropping stuff elsewhere on the seabed. |
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Algae? I seem to remember a proposal to
encourage algal blooms by spreading nutrients on
the ocean, to achieve exactly this. Water-lilies
would be prettier though. [link] |
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// Could they produce oil with built-in tetraethyl lead ? // |
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What would be the point, when fractional distillation will
remove it? |
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Because then you'll have drums of pure TEL which you can re-blend with the light branched-chain fractions to get 110/115 octane AVGAS with no risk if bearing scuff in older powerplants, is why. |
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Yeah, I did realize you could do that. But you have to add it
in afterward either way, whether it's plant-made or
synthetic, so is it really practical to have the plants
synthesize it? And is it stable in crude oil? |
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