Carbo Culture takes biomass, or carbon that's been drawn down by plants from the atmosphere, and converts it into an ultra-stable material called biochar. What sets the company apart from other biochar firms is its re-engineering of biochar technology to scale.

Carbo Culture puts special focus on the permanence of the biochar (how long the carbon will be stored on earth), as well as the scalability of the machinery (how easy is it to build thousands of machines). The firm believes that this quality-first focus is the best way to effectively fight climate change.

The woman-led, Finnish-Californian company is currently scaling this biochar technology at their R&D site in California, with an eye on their next big goal: building one of Europe’s largest carbon drawdown facilities, located in Finland. You can pre-purchase carbon credits from this upcoming facility today.

Carbo Culture’s credits have been verified by puro.earth.

ECOERA is a Swedish biochar innovation company that created the world's first Biochar-only carbon sinks. The company was founded in 2007 at Chalmers Ventures with Skånefrö AB. They have since been awarded the status of WWF Climate Solver. ECOERA provides a full platform for biochar production using biochar made from pelletized agro-residue blends. ECOERA ensures full traceability from the source to the resulting biochar and its location. 

All biochar used for carbon removal is certified according to the European Biochar Certificate (EBC). ECOERA is also in compliance with the Puro.earth Biochar Methodology. Each offset credit represents one CORC (CO₂ Removal Certificate) and each CORC represents a volume of one ton of CO₂ removal. 

Situated in southern Maryland, USA, the Potomac Project will bury and durably sequester 5,000 tonnes CO₂-equivalent (tCO₂e) of coarse woody biomass in a Wood Vault. The wood feedstock is sustainably sourced from wood residuals that would otherwise be destined for mulch, burnt, or left to decompose on the forest floor.

The Wood Vault (WV) is a specially engineered structure that durably stores sustainably sourced coarse woody biomass (CWB) based on the Wood Harvesting and Storage (WHS) method of carbon removal, as researched and developed by Carbon Lockdown founder Dr. Ning Zeng. The science behind WHS and WV can be summarized as a ‘reverse coal’ process in which carbon in the form of woody biomass is taken out of the “fast” photosynthesis-decomposition biotic carbon cycle and transferred to a “slow” geological carbon cycle via human engineering. High durability is achieved by burying CWB in an anaerobic subterranean environment several meters below ground, away from the active biosphere (vegetation, soil, and decomposers) typically limited to the first meter of the soil profile. Carbon Lockdown’s patent-pending WV design ensures an oxygen-depleted environment that prevents wood decomposition and initiates the re-fossilization of carbon.

This project is located roughly 25 miles south of the Capital Beltway (I-495) near the Potomac River. The Wood Vault will occupy one acre of a property owned by Carbon Lockdown. Soil is a heavily weathered red clay (ultisol) with low permeability, ideal for sealing the chamber to ensure anaerobic conditions. The project will bury and durably sequester a minimum net 5,000 tCO₂e of residual CWB sustainably sourced from nearby commercial forestry operations, tree removal companies, commercial real estate developers, and the state and local government.

Multiple phases will add an additional 20-50 ktCO₂e storage capacity to the site. Beyond the Potomac Project, Carbon Lockdown is building out a pipeline of potential project partners consisting of commercial forestry companies, solar developers, commercial real estate developers, and mine operators—as well as local, subnational, and national governments worldwide—with Mt-scale delivery potential in 2023-2025 and beyond.

AspiraDAC is pioneering the world's first solar-powered Direct Air Capture project. It utilizes a modular, solar-powered, low temperature absorption-desorption technology to capture CO₂, which is then injected into deep geological reservoirs for permanent storage.

Rather than simply procuring renewable energy from the grid, the technology configuration embeds and integrates the energy supply—including solar panels and batteries—to provide continuous 24/7 power to the capture equipment. This avoids the multiple costs of grid connection, inverters, and network tariffs as it is essentially a behind-the meter, low-voltage DC configuration. This also means that the technology is immune to grid pricing and carbon intensity.