The Great Carbon Quality Divide

US buyers are ditching cheap offsets for high-integrity credits, sparking a 300 percent price gap and a billion-dollar market reset

6 Feb 2026

The US carbon credit market has entered a period of fundamental restructuring as corporate buyers pivot from volume-driven purchasing toward high-integrity offsets. This shift has triggered a pronounced price divide, redrawing competitive boundaries across both voluntary and compliance market segments.

Data from BeZero Carbon, an independent ratings agency, indicates that the share of retirements involving the highest-rated credits doubled from 10 per cent in 2022 to 22 per cent in 2025. Conversely, retirements of lower-rated credits fell from 31 per cent to 17 per cent over the same period. The trend reflects increased scrutiny of corporate climate claims, with institutional buyers now treating integrity ratings as a baseline requirement for procurement.

Pricing has diverged sharply in response to these preferences. High-rated, investment-grade credits averaged $14.80 per ton in 2025, compared to $3.50 for lower-rated equivalents. This represents a spread of more than 300 per cent. According to data from Sylvera, average spot prices for afforestation and reforestation credits reached $26 per ton by December 2025, up from $14 at the start of the year. While total market spending rose 6 per cent to $1.04bn in 2025, overall retirement volumes declined slightly.

The convergence of voluntary and regulatory frameworks is accelerating this transition. The first phase of the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA), which runs through 2026, has forced aviation buyers to compete for a limited pool of eligible credits. Analysts at Carbon Direct estimate that CORSIA faces up to 200m tons of offsetting demand before the current phase concludes, a figure that exceeds available supply. This has placed airlines in direct competition with technology and financial firms for verified, compliance-grade credits.

Policy outlooks suggest this tightening will persist. Analysts at Sylvera project that compliance demand will account for 24 per cent of the total market by 2026. For US companies aligning with the Science-Based Targets initiative’s updated standards, the window to secure long-term supplies of high-durability removal credits is narrowing. The market's primary characteristic is no longer aggregate growth, but a concentration of capital within the highest quality tiers.