| Pathway | Biochar |
|---|---|
| Country | United States |
| Website | https://carbonzero.eco/ |
| carbonzero-eco | |
| Status | 🟢 Active (score: 70/100) |
| Company size | Micro (under 10) (EU SME size class, derived from the LinkedIn size band; exact headcounts are not published) |
| CDR Focus | supplier |
| Registry-verified | Isometric |
About
CarbonZero.Eco is a Silicon Valley-based, venture-backed biochar startup founded in 2024 by Harper Moss that pyrolyzes almond-shell agricultural waste from Colusa and Yolo County farms into biochar for soil amendment and durable carbon storage. In December 2025 it completed its first commercial biochar plant in Colusa County, California, and signed a carbon removal credit purchase agreement with Climeworks.
Registry Activity
Independently verified by carbon-credit registries:
Isometric
- 1 project · Biochar ↗
Data from Puro.earth and CarbonPlan OffsetsDB (Verra, Gold Standard, ACR, CAR, ART, Cercarbono, Isometric). Refreshed monthly.
History
- 2026-08-15 — refresh: coresignal
- 2026-05-01 — refresh: screenshot
- 2026-05-01 — refresh: coresignal, screenshot
- 2026-04-19 — reclassified: pathway=Biochar focus=supplier liveliness=🟢 Active (source)
- 2026-04-19 — merged 1 duplicate(s): CarbonZero.eco
- 2026-04-19 — refresh: coresignal, screenshot
- 2026-04-19 — reclassified: pathway=Biochar focus=supplier liveliness=🟢 Active (source)
- 2026-04-19 — url added from cdr.fyi supplier page: https://carbonzero.eco/ (source)
- 2026-04-19 — discovered via: cdrfyi (source)
- **** — merged duplicate: CarbonZero.eco (slug=carbonzeroeco)
- 2026-04-19 — refresh: coresignal, screenshot
- 2026-04-19 — reclassified: pathway=Biochar focus=supplier liveliness=🟢 Active (source)
- 2026-04-18 — reclassified: pathway=Biochar 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.