Puro.earth Hits Milestone With 1 Million Retired Carbon Removal Certificates

The voluntary carbon removal market just hit a historic milestone. Puro.earth announced that buyers have officially retired one million CO2 Removal Certificates (CORCs) within its registry.

Each certificate represents one metric tonne of third-party verified carbon dioxide permanently removed from the atmosphere. These instruments offer full lifecycle traceability and ensure carbon permanence for hundreds or thousands of years.

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This milestone reflects a permanent structural shift in corporate climate action. Buyers are moving away from speculative, one-off purchases toward systematic and repeatable procurement strategies.

Rapidly Accelerating Market Velocity

The data highlights a massive increase in transaction speeds across the industry. The average time from certificate issuance to retirement plummeted from 510 days in 2019 to just seven days in 2026.

Puro Registry data shows that total retirements grew by 140% in 2024 and expanded by another 112% in 2025. This growth underscores the rising corporate demand for durable carbon tracking.

Buyers are also executing trades much faster than in previous years. The average time to complete a primary trade dropped from 115 days in 2024 to less than seven days this year.

Jan-Willem Bode, President of Puro.earth, stated that one million retirements is not just a number, it is evidence that the market is working as it should.

This rapid turnaround sends an immediate demand signal to project developers. It gives suppliers the confidence to invest in scaling up physical carbon removal capacity.

Expanding Global Buyer Base

The overall diversity of market participants is growing alongside transaction volumes. Registry data shows a 4.7x increase in the total number of unique beneficiaries between 2020 and 2025.

Over 650 unique end buyers have now retired certificates to meet corporate sustainability goals. The number of new companies entering the market grew from 42 in 2020 to 138 by the end of 2025.

Activity remains highly international and continuous. Between January and June of 2026, the registry recorded 350 transactions spanning 53 separate projects across 20 different countries.

Diversification of Carbon Removal Pathways

The retired certificates cover five distinct engineered carbon removal methodologies. This spread shows that the market is evolving beyond reliance on any single technology.

Dominant Removal Methods

Biochar remains the largest individual pathway, accounting for 48.1% of all retired certificates with 489,280 CORCs. Geologically stored carbon represents the second largest share at 33.3%, totaling 338,598 CORCs.

Emerging Technical Methods

Carbonated materials make up 4% of the registry retirements. Terrestrial storage of biomass accounts for 0.7%, while enhanced rock weathering represents 0.3% of the total volume.

The final 13.7% of retired certificates come from various other emerging carbon removal pathways.

Unlocking Project Finance

Puro.earth currently tracks approximately 76% of all retired engineered carbon removal credits globally. This massive market share establishes the registry as a primary benchmark for corporate climate procurement.

Michelle You, CEO of Supercritical, noted that a million retirements mean buyers have learned to trust this market. Suppliers have successfully moved from projecting future capacity to delivering real results.

High integrity certificates help corporations satisfy strict due diligence requirements from institutional investors and infrastructure funds. This trust helps developers secure essential debt and equity financing for new facilities.