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Geologically Stored Carbon

In the Puro Standard GSC methodology, CO2 is captured either directly from the atmosphere or from sustainably sourced biogenic materials. This CO2 is then injected into suitable underground geological formations for permanent removal. This methodology covers both BECCS and DACCS technologies.

GSC

Carbon dioxide is captured from industrial processes or directly from the atmosphere. The captured CO2 is compressed into a liquid state or dissolved into pressurized water, transported to suitable storage sites and injected into deep geological formations. Pathways under the GSC ensure that the CO2 is permanently removed from the atmosphere for at least 1,000 years.

key benefits

Foundations of permanent geological storage

 Long-term storage

Stores carbon securely for 1,000+ years through permanent geological storage.

Proven storage pathway

Uses well-understood geological formations to store carbon deep underground in a controlled and durable way.

Built for scale

Supports large-scale carbon removal by providing a durable storage pathway for BECCS and DACCS.

permanent removal

Regulated geological storage

GSC provides a secure, reliable and durable pathway for carbon removal. It draws on well-established technology and operational experience to capture and store significant volumes of CO2. Under the Puro Standard, the GSC methodology applies in jurisdictions with robust regulatory frameworks for geological storage, including the US, EU, UK and parts of Canada. In the case of BECCS, it can also support the transition from fossil-based to biogenic energy systems by combining bioenergy with permanent carbon storage.

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all methodologies

Puro.earth methodologies for carbon removal

Direct Air Capture and Ocean Storage

This safe, durable and quantifiably robust methodology under Puro Standard can achieve highly permanent carbon removal of 1,000+ years.…

Durability 1000+ years

Microalgae Carbon Fixation and Sinking

MCFS under Puro Standard supports long-term CO2 removal by fostering local microalgae growth on engineered substrates, which then sink…

Durability 200+ years

Terrestrial Storage of Biomass

Under Puro Standard, this methodology is an innovative approach to store carbon for 100+ years. Terrestrial storage of biomass…

Durability 100+ years

Biochar

Close up background texture of many black lump charcoal pieces ready for barbecue grill, elevated top view, directly above

Biochar is the leading durable carbon dioxide removal technology in both delivery and market liquidity. The Puro Standard brings…

Durability 200+ years

Geologically Stored Carbon

GSC methodologies capture carbon dioxide and store it underground in deep geological formations. It covers both BECCS and DAC-based…

Durability 1000+ years

Enhanced Rock Weathering

Under the Puro Standard, Puro.earth developed the first enhanced rock weathering (ERW) carbon crediting methodology. ERW is a process…

Durability 1000+ years

Carbonated Materials

This methodology under Puro Standard represents an attractive pathway for durable carbon dioxide removal – with a growing interest…

Durability 1,000+ years

Marine Anoxic Carbon Storage

With careful science and transparent risk assessment, MACS has the potential to become an important part of a broader…

Durability 200+ years

faq

Top methodologies and Puro Standard FAQ

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