Biochar and Engineered Carbon Removal

Technologies that remove CO₂ and store it for hundreds to thousands of years, including biochar, direct air capture and enhanced weathering.

Durable storage

Biochar, direct air capture with geological storage and enhanced weathering aim to store CO₂ far longer than forests. Their credits are valued for durability and measurability. The trade-off is cost: most of these technologies are expensive and still early in deployment.

Biochar in practice

Biochar is produced by heating biomass with little oxygen. When it is added to soil, much of its carbon can remain stable for a very long time. Projects must show that the biomass was sourced sustainably and that the biochar's carbon content and stability are measured.

Direct air capture and weathering

Direct air capture uses chemical processes to pull CO₂ from ambient air and store it, usually underground. Enhanced weathering spreads crushed rock to speed up natural CO₂ uptake. Both need careful measurement, and both are at an early stage of scale.

Questions to ask before you rely on these credits

How is the stored carbon measured, and for how long is storage expected to last?
Where does the biomass or energy for the process come from?
Is the removal verified by an independent body, and is the storage site monitored?

Latest on Carbon Removal (CDR)

All →

CDR

Gevo's BECCS Credits Signal Growing Appetite for Physical CDR

The delivery of 10,000 CDR credits from a single North Dakota facility demonstrates market momentum for engineered carbon removal, though questions remain about pricing and permanence standards.

8 Oct 20262 min read

CDR

Swiss Sewage Biogas Deal Signals Infrastructure Shift in European Carbon Strategy

A wastewater authority's procurement tender reveals how municipalities are monetizing methane capture through biomethane infrastructure rather than traditional carbon credits.

8 Oct 20263 min read

CDR

Gevo Monetizes Carbon Removal as Sustainable Fuels Margins Tighten

The synthetic fuel producer's deal with ClimeFi signals a strategic pivot toward diversified carbon revenue streams beyond its core SAF business.

8 Oct 20262 min read

CDR

Rio Tinto's China Carbon Capture Test Signals Sector Shift on Steel Emissions

The mining giant's trial targets a sector responsible for roughly 7% of global emissions, testing whether capture tech can scale beyond niche applications.

7 Oct 20262 min read

CDR

India's Biochar Opportunity: From Agricultural Waste to Carbon Credits

As India seeks to scale its carbon removal capacity, biochar production from agricultural residue could unlock significant value in both voluntary and compliance markets.

7 Oct 20263 min read

CDR

Iceland Pursues India as CDR and Clean Energy Partner

The geothermal-rich Nordic nation aims to leverage its climate tech expertise in India's massive energy transition, signaling growing south-north cooperation on carbon removal.

7 Oct 20263 min read