We've Got "Tons" of Options

  • Biochar

    Producing plant-based solid carbon from biomass waste products

  • Bio-oil

    Creating injectable plant-based oil from biomass byproduct

  • Concrete Mineralization

    Mineralizing captured CO₂ by injecting it into concrete mixture

  • Enhanced Rock Weathering

    Enhancing natural mineralization processes to permanently store carbon

  • Reforestation

    Replanting forest ecosystems 

    that sequester CO₂

  • Soils

    Improving the capacity of soil to store carbon

  • ...and more as they become available.

    We need to invest in early stage CDR solutions TODAY so that they can scale massively tomorrow.


Biochar starts as biomass - plant matter, old wood, agricultural waste - that is pyrolyzed, or heated to high temperatures without oxygen. The result is a solid chunk of carbon that can no longer decay and release CO₂ back into the atmosphere. Biochar is an example of a CDR method that comes with an end product that can be used for many things, including as a soil amendment. 


Bio-oil also starts off as biomass and undergoes fast pyrolysis. This results in something similar to crude oil, but with less viability as a fuel. Since it has a density similar to crude oil, it can be injected into wells left empty by the oil and gas industry without risk of leaking back out into the atmosphere. It’s basically a way of putting oil back where it came from. Our bio-oil removals are supplied by Charm Industrial.

Concrete Mineralization

Concrete is the most abundant human-made material on earth, with billions of metric tons poured annually. Mineralizing captured CO₂ in concrete improves the concrete’s compressive strength, allowing concrete producers to safely lower the carbon footprint of the concrete—with no impact on quality or performance. Once mineralized, the CO₂ is prevented from releasing into the atmosphere for generations. Our Concrete Mineralization credits are supplied by CarbonCure.

Enhanced Rock Weathering

Weathering refers to the natural process whereby CO₂ comes into contact with water and alkaline minerals. The chemical reactions that then take place result in stable carbonate minerals that essentially trap the carbon. The enhanced part means that humans step in to make this happen on a faster time scale, and it’s important to note that trapping carbon in carbonate minerals is one of the safest ways we can store the excess CO₂ in the atmosphere. One approach uses  very abundant, naturally reactive basalt rock, grinding it and letting it react with water. Our Enhanced Rock Weathering removals are supplied by UNDO.

Soil Carbon

Soils can hold more carbon than the atmosphere, and healthy soils are full of carbon. Regenerative agricultural practices, such as no-till or cover crops, restore carbon-depleted soils and improve fertility. Soil carbon sequestration is a great example of how low cost, simple changes can have a big impact on the climate, as well as improve agricultural ecosystems and the sustainability of our food supply. Our soil removals are supplied by Nori

Method-Specific Cards