Carbon Removal in 2026: Methods, Markets, and Prices

Carbon removal is any process that physically extracts CO2 from the atmosphere and stores it in a durable form. The IPCC estimates that limiting warming to 1.5°C requires 6 to 10 billion tonnes of CO2 removal per year by 2050. Current deployment stands at roughly 8 million tonnes per year. That is a 1,000x gap between what exists and what the science says is necessary.

This is not a theoretical requirement. Emission reductions alone are no longer sufficient because the atmosphere already contains more CO2 than is compatible with stable climate outcomes. Even if global emissions dropped to zero tomorrow, the legacy stock of atmospheric CO2 would continue driving warming for decades. Removal addresses the stock, not just the flow.

The gap is enormous, but the trajectory is moving in the right direction. Durable carbon dioxide removal (CDR) purchases grew 78% year-on-year in 2024, reaching approximately 8 million tonnes. The voluntary carbon market is restructuring around quality and permanence. Corporate procurement is shifting from cheap avoidance offsets to verified physical removal. Policy frameworks like the EU Carbon Removal Certification Framework (CRCF) and the US 45Q tax credit are creating compliance demand alongside voluntary purchasing.

The economics are still challenging. The cheapest durable removal method, biochar, costs $131-164 per tonne of CO2 removed. The most engineered approach, direct air capture with geological storage, costs $400-600+ per tonne. Scaling from 8 million to 8 billion tonnes per year at these prices is not currently affordable. But every carbon removal technology follows a cost learning curve, and every doubling of deployment drives costs down. The question is not whether removal will scale. It is which methods will scale first and which price trajectories are steepest.

Six categories of carbon removal are commercially active or in advanced development. They differ on three axes: cost per tonne of CO2 removed, permanence of storage (how long the carbon stays sequestered), and readiness to scale. No single method will close the gigatonne gap alone. The portfolio approach is not a hedge. It is a necessity driven by the physics of each pathway.

Biochar converts biomass into stable carbon through pyrolysis (heating without oxygen) and stores it in soil. Cost: $131-164/tCO2e. Permanence: hundreds to thousands of years at temperatures above 550°C. Current share of durable CDR deliveries: 86-94%. Biochar is the market leader because it is the most cost-effective pathway with verified long-term permanence. The limiting factor is sustainable biomass feedstock supply.

Direct air capture (DAC) uses chemical processes to capture CO2 directly from ambient air, then stores it geologically or mineralizes it. Cost: $400-600+/tCO2e (Climeworks pricing). Permanence: thousands to millions of years (geological). Scale potential is theoretically unlimited because it does not require biomass feedstock or arable land. The constraint is energy input and cost. Every DAC plant needs large quantities of low-carbon heat or electricity.

Enhanced rock weathering (ERW) accelerates the natural process by which silicate rocks absorb CO2 during chemical breakdown. Crushed basalt is spread on agricultural land where it reacts with soil water and atmospheric CO2. Cost: $80-200/tCO2e. Permanence: tens of thousands of years (mineral carbonation). ERW has the co-benefit of improving soil pH and delivering mineral nutrients, which makes it economically relevant to farmers beyond carbon credits.

Ocean-based removal encompasses ocean alkalinity enhancement, macroalgae sinking, and electrochemical approaches. Cost: $50-150/tCO2e (early estimates). Permanence: hundreds to thousands of years. The ocean already absorbs 2.8 billion tonnes of CO2 per year. Ocean CDR methods aim to safely accelerate or supplement this natural sink. Measurement, reporting, and verification (MRV) remain the primary challenge. The open ocean is harder to monitor than a field or a factory.

BECCS (bioenergy with carbon capture and storage) burns or gasifies biomass for energy and captures the resulting CO2 before it enters the atmosphere. Cost: $100-200+/tCO2e. Permanence: thousands of years (geological storage). BECCS is constrained by sustainable biomass availability and the capital cost of CCS infrastructure. Large-scale deployment competes with biochar for feedstock.

Soil carbon sequestration uses agricultural practices like cover cropping, no-till farming, and regenerative agriculture to increase the organic carbon content of soils. Cost: $10-50/tCO2e. Permanence: 10-100 years (reversible through tillage, drought, or land use change). The IPCC estimates soil-based approaches could contribute up to 4.1 Gt CO2e per year at costs below $100/tonne. The challenge is permanence: soil carbon is biologically active and can be re-released. Credit contracts typically run 10-20 years, but the climate needs storage on century timescales.

Biochar dominates the durable carbon removal market. Between 2023 and 2024, biochar accounted for 86-94% of all verified removal tonnes physically delivered to buyers. The next closest method, enhanced rock weathering, delivered single-digit percentages. This is not a niche technology. It is the current backbone of the carbon removal industry.

The reason is straightforward: biochar hits the intersection of cost, permanence, and readiness that no other method currently matches. At $131-164 per tonne of CO2 removed (Puro.earth certified pricing, 2023-2025), it is roughly three to four times cheaper than direct air capture. Its permanence exceeds 500 years when produced above 550°C, with some research suggesting stability over 1,000 years. The evidence for long-term durability is partly historical: Amazonian terra preta soils, created by indigenous communities through deliberate biochar application over 2,000 years ago, still show elevated carbon content today.

Biochar also generates agricultural co-benefits that create revenue independent of carbon credit sales. Field trials show 40-60% productivity recovery on degraded cropland within two growing seasons after application. Biochar improves water retention, enhances soil microbial habitat, and increases nutrient availability. These are measurable, near-term benefits that farmers value regardless of carbon market conditions. This dual value stream makes biochar more resilient than methods that depend entirely on carbon credit revenue.

The constraint on biochar scaling is feedstock. Pyrolysis requires biomass: agricultural residues, forestry waste, purpose-grown crops. Sustainable feedstock supply is finite. Competing uses for biomass (energy, materials, composting) limit how much can be diverted to biochar production. At the current $164/tonne price, the economics work for medium-scale facilities processing regional agricultural waste. At gigatonne scale, the feedstock question becomes a land-use question.

Direct air capture (DAC) uses chemical sorbents or solvents to capture CO2 directly from ambient air. The captured CO2 is then compressed and injected into deep geological formations or reacted with minerals for permanent storage. DAC has the highest permanence of any removal method (geological timescales: 10,000+ years) and the widest deployment flexibility (no land use requirements, no biomass dependency). It also has the highest cost.

Climeworks, the largest operational DAC company, prices removal at $600+ per tonne. The US Department of Energy has set a target of $100/tonne by 2030 through its Carbon Negative Shot initiative. Reaching that target would make DAC competitive with biochar and fundamentally change the removal market. Whether the target is achievable depends on energy costs, sorbent efficiency improvements, and manufacturing scale.

Two DAC technology approaches are commercially active. Solid sorbent systems (Climeworks, Global Thermostat) use solid materials that bind CO2 at ambient temperature and release it when heated to 80-120°C. Liquid solvent systems (Carbon Engineering, now part of Occidental Petroleum) pass air through a potassium hydroxide solution. Both approaches are energy-intensive. The energy required to capture one tonne of CO2 ranges from 1,500-2,500 kWh of thermal energy plus 200-500 kWh of electrical energy. This energy must itself be low-carbon, or the net removal is diminished.

DAC's fundamental advantage is that its scale potential is decoupled from biological constraints. Unlike biochar (limited by biomass), soil carbon (limited by arable land), or ocean CDR (limited by marine ecology), DAC can theoretically be deployed anywhere with low-carbon energy. Iceland, the Arabian Peninsula, and parts of North Africa have been identified as optimal locations combining geothermal or solar energy with geological storage capacity. The constraint is capital expenditure and energy supply, not resource availability.

The durable CDR equity investment in DAC reached $836 million in 2024 (down 30% from 2023, reflecting market consolidation rather than declining interest). The Frontier Climate coalition (Stripe, Alphabet, Shopify, Meta, McKinsey) has committed over $1 billion to advance market purchases of carbon removal including DAC through 2030. These advance commitments are designed to give developers the revenue certainty needed to invest in next-generation plants.

Nature-based removal methods use biological processes to capture and store CO2. They are cheaper than engineered approaches but face a fundamental permanence problem: biological carbon is stored in living or recently-living material that can be re-released through fire, drought, disease, or human disturbance. This does not make nature-based removal worthless. It means the market must price permanence risk accurately.

Soil carbon sequestration is the largest single natural removal pathway by potential volume. The IPCC estimates that improved soil management could sequester up to 4.1 Gt CO2e per year at costs below $100/tonne. Practices include cover cropping, no-till farming, and diverse crop rotations. The economics are improving as measurement technology advances: AI-based soil carbon mapping now costs €0.23 per hectare, a 1,000x reduction from traditional lab analysis. This cost collapse is removing the verification bottleneck that previously made small-farm carbon credits uneconomical.

The permanence challenge is real. Updated 2023 field research revised cover crop sequestration rates from earlier estimates of 0.32 tC/ha/year down to 0.03 tC/ha/year, a 10x reduction. Soil carbon is biologically active. No-till systems show gains in the top 10cm of soil (+3.15 t/ha) but equivalent losses at 20-40cm depth when measured at full profile. The honest assessment: soil carbon is valuable for agricultural resilience and modest climate benefit, but it is not a substitute for durable removal methods when permanence matters.

Blue carbon ecosystems (mangroves, seagrass, salt marshes) store carbon at rates that far exceed terrestrial systems per unit area. Mangroves hold 1,494 Mg CO2e per hectare. Kelp farming sequesters roughly 20 tCO2e per hectare per year, five times the rate of terrestrial forest. Blue carbon credit prices command an 8-10x premium over standard REDD+ credits: $26-30/tCO2e for mangrove restoration versus $2.50-3.50/tCO2e for forestry offsets.

The blue carbon market is severely supply-constrained. Only about 70 projects across 29 countries cover roughly 1 million hectares, and just 11 have registered ongoing issuances. Total abatement potential is projected at 154 MtCO2, with only 5 MtCO2 issued so far. Demand is outpacing supply. This supply constraint is what drives the premium pricing. For investors and project developers, blue carbon represents a high-value, undersupplied market. For the climate, it represents an enormous untapped natural removal capacity.

Mycorrhizal fungi networks provide a lens on how natural systems already move carbon at enormous scale. Research estimates that 13 billion tonnes of CO2 per year flow through mycorrhizal networks, equivalent to 36% of annual fossil fuel emissions. These underground fungal networks connect plant roots to soil carbon storage. The inoculants market (restoring mycorrhizal networks on degraded land) reached $670 million globally in 2023 and is projected to reach $1.58 billion by 2033. We are spending $670 million to restore a system that moves 13 billion tonnes of carbon for free.

The voluntary carbon market (VCM) is undergoing its most significant structural shift since inception. The total VCM transacted $723 million in 2023 across 111 million tonnes of credits retired. But the composition of that market is changing. Traditional avoidance-based offsets (primarily REDD+ forestry) are collapsing in value. Removal-based credits are rising. The market is repricing around a single variable: physical permanence.

The collapse of REDD+ forestry credits tells the story. Between 2022 and 2023, REDD+ credits lost 62% of their market value and 51% of their trading volume. Investigative reporting, academic research questioning baseline methodologies, and the Verra certification controversy exposed the gap between claimed and actual climate impact. Buyers fled to verifiable physical removal. The result: even as total VCM volumes fell, average credit prices rose 82% (from $4.04 to $7.37/tCO2), because the remaining volume was concentrated in higher-quality categories.

Carbon removal credits now represent roughly one-third of VCM retirement value, up from less than 20% the prior year. The total value of unretired credits in the VCM is approaching 1 billion tCO2e, indicating massive oversupply of cheap avoidance credits that the market can no longer absorb at previous prices. This oversupply is healthy. It means the market is differentiating between credit types, and the differentiation maps to climate integrity.

The compliance market is larger but slower-moving. The EU ETS turned over 783 billion EUR on 9.24 billion allowance units in 2023 and has reduced covered-sector emissions by approximately 47% since 2005. EU ETS prices peaked at 105.73 EUR/t in February 2023 and have settled in the 60-80 EUR/t range. Modelling projects prices of 400-630 EUR/t by 2050 under the Fit-for-55 package. The Carbon Border Adjustment Mechanism (CBAM) entered its definitive phase in January 2026, covering cement, steel, aluminium, fertilizers, electricity, and hydrogen.

Agricultural carbon credits represent a growing but still small segment. The voluntary agriculture carbon market was worth approximately $91.4 million in 2022-2023, about 12% of total VCM value. Agricultural credits averaged $8.81/tCO2 in 2021, the highest of any category, reflecting co-benefit premiums (soil health, water quality, biodiversity) rather than permanence. The Verra VM0042 v2.2 methodology received ICVCM approval in October 2025, potentially unlocking 126 MtCO2e/year from roughly 200 projects. The US 45Q tax credit now covers biochar production, creating compliance-grade demand for what was previously a purely voluntary market.

The carbon removal market is being built by a small number of large corporate buyers making advance purchase commitments. These commitments serve two purposes: they fund the current generation of removal projects, and they create the demand signal that attracts capital for the next generation. The buyer ecosystem is concentrated but expanding.

Microsoft committed to removing all historical emissions since its founding by 2050 and has been the single largest corporate buyer of carbon removal credits. Its annual procurement has included biochar, DAC, enhanced weathering, and ocean-based removal across dozens of suppliers. Microsoft's willingness to pay premium prices for high-permanence removal has set the quality bar for the market.

Frontier Climate, the advance market commitment (AMC) launched by Stripe, Alphabet, Shopify, Meta, and McKinsey, committed over $1 billion to carbon removal purchases through 2030. The AMC model is specifically designed to give early-stage removal companies the forward revenue certainty needed to build next-generation facilities. Frontier has contracted with companies across biochar, DAC, enhanced weathering, ocean alkalinity, and mineralization.

The buyer landscape is extending beyond tech. Green bond frameworks increasingly include carbon removal investments. Insurance companies are beginning to price carbon removal into long-term liability models. Approximately 500 of the world's largest companies now use or plan to use internal carbon pricing, with a median price of roughly $25/tCO2e. As internal carbon prices rise, the economic case for purchasing removal credits strengthens.

Policy is creating compliance demand alongside voluntary purchasing. The US 45Q tax credit provides $85/tonne for geological CO2 storage and $60/tonne for other forms of permanent sequestration. The EU CRCF establishes a certification framework for carbon removal that will eventually integrate with the EU ETS. As compliance markets begin to recognize removal, the buyer base shifts from voluntary corporate procurement to regulated industrial obligation.

The carbon removal industry in 2026 sits at an inflection point. The direction of travel is clear: toward permanence, measurability, and engineering. The speed of travel is the variable. Three dynamics will determine whether the market scales fast enough to matter for the climate.

Cost learning curves. Every carbon removal technology follows a learning curve where costs decline as cumulative deployment increases. Biochar costs have been stable at $131-164/t, reflecting a mature process rather than a technology in rapid cost decline. DAC is on the steepest learning curve: the DOE targets $100/t by 2030, which would represent a 75-85% reduction from current prices. Enhanced weathering is in early deployment and its learning rate is not yet established. The methods that achieve the steepest cost declines in the next five years will capture the most market share in the decade after.

MRV (measurement, reporting, and verification) standards. The carbon removal market's integrity depends on the ability to verify that a tonne of CO2 was actually removed and stored for the claimed duration. Biochar has relatively straightforward MRV: you can weigh the biochar, analyze its carbon content, and apply stability models. DAC with geological storage can be monitored with subsurface sensors. Soil carbon and ocean CDR face harder MRV challenges. The 2023 cover crop sequestration revision (from 0.32 to 0.03 tC/ha/year) shows what happens when measurement improves: claimed volumes shrink. Better MRV will continue to compress nature-based removal estimates while validating engineered removal claims. The market will follow the measurement.

Policy integration. The transition from voluntary to compliance demand is the single largest growth driver for carbon removal. When the EU ETS begins recognizing certified removal credits, when CBAM creates carbon price exposure for exporters to Europe, when 45Q makes biochar production eligible for direct tax benefits, the buyer base expands from hundreds of voluntary corporate purchasers to thousands of regulated entities. This transition is underway. The EU CRCF, ICVCM Core Carbon Principles, and national certification frameworks are building the regulatory architecture. The timeline is 2026-2030 for initial integration.

The honest assessment: carbon removal in 2026 is a small industry doing important work on a trajectory that could become transformative. 8 million tonnes against a 6-10 billion tonne target is 0.1%. But every industry that eventually reached gigatonne scale started at zero. The cost curves are favorable. The policy signals are favorable. The corporate procurement pipeline is growing. The question is no longer whether carbon removal works. It is whether the scaling happens fast enough to complement the emission reductions that remain the primary lever for climate stability.

For a deeper look at specific removal methods, see our guides on biochar, carbon dioxide removal, and carbon credits. For the investment perspective, see Follow the Money. For a look at what happens when green technologies fail to scale, see When Green Projects Fail.