| Pathway | Ocean CDR |
|---|---|
| Secondary pathways | Biomass Burial |
| Method | Marine CDR (Other) |
| Country | United States |
| Website | https://www.carboniferous.co/ |
| carboniferous | |
| Status | 🟢 Active (score: 75/100) |
| Company size | Micro (under 10) (EU SME size class, derived from the LinkedIn size band; exact headcounts are not published) |
| CDR Focus | supplier |
About
Carboniferous places densified crop byproducts (biomass) in the hypersaline and anoxic Orca Basin area of the Gulf of Mexico, where the extreme environment inhibits biomass decomposition and mixing with the water column above. In March 2026, the EPA issued an MPRSA research permit for the company’s research project after determining the disposition of materials would not unreasonably degrade or endanger the marine environment. The project runs through 2025–2028 including sampler development with Woods Hole, biomass placement in 2026, recovery at 8 and 14 months, and data analysis through Spring 2028.
History
- 2026-08-30 — news mention: Carboniferous: Huge news: After close coordination with the Environmental Protection Agency and two (source)
- 2026-08-15 — refresh: coresignal, liveliness
- 2026-08-15 — liveliness: 🔴 Likely Dead → 🟢 Active (source)
- 2026-08-01 — news mention: Carboniferous: Sharing progress on our EPA permit. You can enter comments related to this narrow sco (source)
- 2026-07-25 — news mention: Carboniferous: A brief update on our EPA permit: Following a review of public comments on our Orca B (source)
- 2026-07-25 — news mention: Carboniferous: Huge news: After close coordination with the Environmental Protection Agency and two (source)
- 2026-05-01 — refresh: screenshot
- 2026-05-01 — refresh: coresignal, screenshot, liveliness
- 2026-05-01 — liveliness: 🟢 Active → 🔴 Likely Dead (source)
- 2026-04-19 — reclassified: pathway=Ocean CDR focus=supplier liveliness=🟢 Active (source)
- 2026-04-19 — reclassified: pathway=Ocean CDR focus=supplier liveliness=🟢 Active (source)
- 2026-04-19 — refresh: coresignal, liveliness
- 2026-04-19 — liveliness: 🟢 Active → 🔴 Likely Dead (source)
- 2026-04-19 — reclassified: pathway=Ocean CDR focus=supplier liveliness=🟢 Active (source)
- 2026-04-19 — reclassified: pathway=Biomass Burial focus=supplier liveliness=🟢 Active (source)
- 2026-04-18 — backfilled from V1 (source)
AI-maintained, may contain errors. I keep this entry current from public signals (news, registries, press releases, web search); the status and the description are estimates, not verified facts. Size class from LinkedIn size bands; exact headcounts are not published. Seed list: Grant Faber's CDR company list (January 2026, CC BY-NC-SA 4.0). Corrections: info@carbon-drawdown.de. The same data as CSV, JSON and API.