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It is A.D 2050 and humanity largely fails to halt global warming. Tsunamis, heat waves, desertification - all very common in this day and age. Now let's say that scientists want to try something more...drastic. Im talking about geoengineering level of drastic.

I want something similar to Panchaea from Deus Ex: Human Revolution. It was a megastructure built to fight global warming (at least on the surface) that resembled a large hole in the ocean. A large research or other hi-tech facility much larger and more important than stations that we have now on Antarctica.

The best answer will contain: 1- A megaproject that will be comparable to the mentioned Panchaea or CERN. Preferably some large building/set of buildings 2.Something that will halt or even "heal" climate change 3.Explanation how it would work and look like

It can contain very experimental/far-fetched ideas, like using futurist technology that we may not have right now.

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    $\begingroup$ Fishing for ideas? You know that's off-topic here. What problem are you trying to solve? Remember we have a story-teller's corner just right for your question. $\endgroup$ Commented Jan 22 at 19:16
  • $\begingroup$ The biggg problem with any kind of megaproject in Antarctica is that is very hard to get to Antarctica proper. We can get relatively easily to the top of the ice sheet, but that is about 2 km (1.2 miles) above Antarctica proper on the average. There are only a few places in Antarctica were the actual rocks of the continent are directly accessible. $\endgroup$ Commented Jan 22 at 19:23
  • $\begingroup$ this is far to unconstrained - if I put my lab to develop Plague 2.0 in antarctica, does that count? How about the control center for the human extermination program? What about the factory for the Hunter Killer Droids tasked to kill all humans? $\endgroup$ Commented Jan 23 at 11:52
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    $\begingroup$ The bigger problem I see here is that we currently already have all the solutions we need regarding anthropocentric climate change, we don't need to develop even more ways to fight it, we need to convince all of the people in power that using those solutions and keeping the planet livable for longer is more important than filling their pockets with more money or pursuing their space tourism and AI slavery wet dreams. Also, the construction and maintenance of a megastructure like that would, in itself, contribute to worsening climate change. $\endgroup$ Commented Jan 23 at 12:05
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    $\begingroup$ Have you already looked at en.wikipedia.org/wiki/Glacial_geoengineering and related articles? $\endgroup$ Commented Jan 23 at 14:52

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A biomassgrave, basically a gigantic kelpfarm in the oceans dropping the grown greenery to the oceanfloor where its regularly covered with mud dozers.

1.Growth

Biomass grows from the atmosphere, meaning it needs water rich in Nitrogen, Carbondioxid and traceelements(iron). And light. You can use surface light, but as you want to enclose the growthzone to prevent the spread of pests, a cylinder would be ideal. So artificial light, rust and bubbling atmosphere it is. All with mechanisms to remove grown algea and weed.

2. Harvest

Once the forrest is ripe, free of pests, the whole thing is harvested, compressed and weighed down. After that it falls through a in water underwater tunnel into the burrialsite.

3. Burrial

The burial site is a underwater saltlake, something that by nature of osmosis is conserving. The biomass is stacked up flat on the floor on the lake. Ocassionaly a underwater bulldozer is bulldozing mud and silt on top. The site is geographically stable though it may be prown to underwater mudslides burrying the "payload" further.

The whole operation is supplied with energy by floating solar panels. Everything is build with redundancies and little maintenance in mind.

All you see at night is rows of glowing dots on the oceans surface.

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  • $\begingroup$ I may be missing something but how exactly does that help fight climate change, which is OP's main concern? $\endgroup$ Commented Jan 24 at 14:12
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    $\begingroup$ Kind of dark there half the time. $\endgroup$ Commented Jan 24 at 14:29
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    $\begingroup$ It removes carbon dioxid from the atmosphere by burrying it as carbon on the oceanfloor $\endgroup$ Commented Jan 24 at 14:30
  • $\begingroup$ Escaped is right, when the forrest grows, the light gets green and dims $\endgroup$ Commented Jan 24 at 14:31
  • $\begingroup$ that is an excellent way to create a giant methane bomb just waiting to fart out and not only increase Global Warming, but absolutely kill any living thing for thousands of miles around it. $\endgroup$ Commented Jan 27 at 11:03

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