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Coastlines and waterways are typically highly-valued even without oil refineries on the coastline next to the homes and the port and the harbor.

FWIU there are newer AGR Acidic Gas Reduction capabilities for reducing emissions from refineries?

The Copenhill facility in Copenhagen appears to be really good at capturing flue waste; maybe the best in the world? https://en.wikipedia.org/wiki/Amager_Bakke

Can e.g. graphene filters be made onsite from e.g. flue gas?

Other oil things:

Fossil fuel phase out: https://en.m.wikipedia.org/wiki/Fossil_fuel_phase-out

Carbon-neutral fuel: https://en.wikipedia.org/wiki/Carbon-neutral_fuel

Electrofuel (eFuel); Porsche, https://en.wikipedia.org/wiki/Electrofuel

Decarbonization of shipping: https://en.wikipedia.org/wiki/Decarbonization_of_shipping

Civilian Drone port control; https://freetakteam.github.io/FreeTAKServer-User-Docs/tools/...

FAA UAS RemoteID: https://www.faa.gov/uas/getting_started/remote_id

Open Drone ID: https://github.com/opendroneid/

Standby drone spill containment could be recommended?

Could a (partially-submerged) prop pull oil spill containment booms of foam and/or aerogel, in order to automatedly haul up oil spills for pressing into extant modular recapture vessels, with drift and drone sensor fusion for e.g. human in-the-loop route planning?

The Ocean Cleanup has experience with similar trawling, though plastic recycling is looking good.

SeaBin organization has dock-mounted trash-capture fluid vortices with low pressure.

FWIU, it looks like hemp aerogel just bested treated polyurethane foam just bested hair for soaking up oil spills: "Self-cleaning superhydrophobic aerogels from waste hemp noil for ultrafast oil absorption and highly efficient PM removal" https://www.sciencedirect.com/science/article/abs/pii/S13835...

"NASA finds super-emitters of methane" https://news.ycombinator.com/item?id=33427157#33431427

Dandelion rubber tires solve the "synthetic rubber is most of the microplastic in the ocean" problem; and dandelions can probably be planted next to refineries? https://news.ycombinator.com/item?id=37728005






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