Using a vast floating and slowly drifting kelp forest with autonomous buoyancy drones to absorb CO2 and lower ocean acidification

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So I didn’t look into this too much but I think some electric drones are going to have a hell of a time towing a massive array covered in kelp. Even keeping stationary is going to require a lot of energy Things that tow things in the sea are generally powered by beefy Diesel engines for a reason. Edit: this feels like another example of a good idea (aquaculture kelp for biomass fuel) being smashed into high-tech for hype. Electric drones don’t have the energy density to manage a big array of kelp. The ocean is way more powerful than most people understand. A 1knot current acting on huge array of kelp is going to require tugboat-level torque, sustained, for as long as you want to stay in place. Same thing with pulling it somewhere to be harvested. Battery technology is a long ways off from that. Unless you want to drop that “inexpensive” part and say these are going to be multi-million-dollar underwater battery packs. You’ll skip a lot of steps by anchoring the array to the bottom in a likely spot with hydraulically driven depth control. The hydraulic power could even come from wave action without being too ridiculously complex. The you drive your harvest ship to it.

lizerdk

This taps vast areas of the planet’s surface for agriculture while using up CO2 in the ocean. Brilliant!

ttystikk

Yeah, this is just the most recent version of this bad idea. Still not feasible or wise. The cost is high, CO2 capture is negligible, risk of entanglement with marine mammals is considerable and no one knows what to do with kelp yet on any sort of scale in the West. Anyone who tells you different is selling snake oil. Source: I’m a kelp biologist married to a kelp farmer

Sirboofsalot

Ive definitely seen this idea before, it should be public domain not pattented, also the force necessary to tow around kelp shouldn’t be underestimated

sAvage_hAm

Dude. Hook this shit up with some offshore wind turbines and the near-zero-carbon-emitting water desalination process they use in Hawaii, and you’re gonna be on to something.

DarkBlueMermaid