Puro.earth
Puro.earth is a standard and registry for durable, engineered carbon removal such as biochar, issuing CORC credits with Nasdaq-built price indexes, and its 2025 biochar methodology raised durability to CORC200+, representing removal over several centuries.
Puro.earthInside Puro.earth
Puro.earth runs the Puro Standard and registry for durable CO2 removal, issuing CORCs and collaborating with Nasdaq on a first-of-its-kind index family tracking engineered-removal prices.
Its 2025 biochar methodology update increased durability from CORC100+ to CORC200+, certifying removal stored for at least two hundred years.
Biochar is the leading durable removal category by delivery and liquidity, which keeps Puro adjacent to, rather than central to, nature-based forest and blue-carbon credits.
For nature-adjacent engineered interventions such as biochar from project residues, provenance and monitoring evidence can route to Puro for CORC issuance, alongside a project’s nature-based credits.
Recent developments
- 2025Biochar methodology update raised durability from CORC100+ to CORC200+, certifying centuries-scale carbon storage.
Using Puro.earth in a project
The provider’s own site holds its current capabilities, access terms and documentation. Read them before selecting the tool or planning an integration.