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Carbonated Materials

This methodology under Puro Standard represents an attractive pathway for durable carbon dioxide removal – with a growing interest from project developers, buyers, and researchers working on mineral carbonation in industrial settings.

CM

This methodology stores CO2 by reacting it with mineral-based materials such as concrete products and aggregates to form stable carbonates. The process locks away carbon dioxide for 1,000+ years and can support a more circular industrial model by turning industrial byproducts into durable materials.

key benefits

Mineral carbonation of industrial byproducts

Long-term removal

Carbonated materials store CO2 for 1,000+ years by forming stable carbonates through mineralisation.

Utilization of byproducts

The methodology can make use of industrial byproducts and waste materials such as steel slag mine tailings and alkaline waters.

More circular industrial processes

By turning waste streams into durable carbon-storing materials, the process can support a more circular industrial model while reducing the environmental impact of carbon-intensive industries.

regular review

Scientific and operational rigor

Puro.earth reviews its methodologies under Puro Standard as part of a regular review cycle. It ensures that mineral carbonation remains scientifically robust, operationally clear, and credible at scale.

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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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More about our methodologies and infrastructure

  • Puro Standard

Methodologies

In 2019, we pioneered the world’s first standard dedicated exclusively to engineered carbon removal. Today, Puro.earth’s infrastructure provides the…

  • Infrastructure
  • Puro Standard

The Puro Standard for carbon removal

Puro.earth turns verified carbon removals into trusted market assets. We provide the certification infrastructure, rigorous methodologies and transparent Nasdaq-powered…

  • Supply

CDR Supplier facilities

Puro.earth has one of the largest CDR supplier network with facilities across the globe.