Podcast Atlas
concept Updated 2026-08-07 Topics: Science

Carbon Storage Permanence

Carbon storage permanence is the requirement that captured CO2 stay out of the atmosphere for a climate-relevant duration. The high cost of vacuuming carbon from the sky adds the concept through Heirloom Carbon Technologies, where captured CO2 from Limestone Loop Carbon Capture is described as being permanently stored in concrete or underground.

The concept matters because Direct Air Capture is not complete at capture. A carbon-removal claim depends on what happens after CO2 separation: storage location, leakage risk, monitoring, accounting, and whether the claimed removal offsets new emissions or supplements actual reductions.

Peter Reinhardt on Segment’s Pivots and Charm Industrial’s Carbon Removal adds the Bio-Oil Carbon Removal version through Charm Industrial. In that source, the storage claim depends on turning biomass into liquid bio-oil and injecting it underground, with customer trust supported by Charm’s ledger and delivery information. The source makes permanence adjacent to Carbon Removal Permitting because storage cannot be scaled unless the injection pathway is accepted by regulators.

An "antacid" to fight climate change adds an ocean-chemistry version through Ocean Alkalinity Enhancement. In Olivine Carbon Removal, the claimed storage depends on converting CO2 into bicarbonate in seawater. That makes permanence less about a sealed storage site and more about measuring net chemistry change, lifecycle emissions, ocean mixing, and whether the carbon remains stored on climate-relevant timescales.

Key Claims

  • Capture and permanent storage are separate requirements in a credible Carbon Removal pathway.
  • Concrete use and underground storage can both be presented as durable sinks, but the source does not deeply evaluate lifecycle accounting or verification.
  • Permanence concerns interact with Carbon Removal Moral Hazard because weak storage claims could make continued emissions look cleaner than they are.
  • Scaling storage capacity is part of the same commercialization problem as scaling capture equipment.
  • For bio-oil pathways, permanence also depends on feedstock accounting, conversion losses, transport, injection-site integrity, and monitoring of stored liquid carbon.
  • For marine pathways, permanence depends on whether dissolved bicarbonate formation is real, net of project emissions, durable in ocean chemistry, and measured without hiding ecological tradeoffs.

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