Carbon Direct, in collaboration with leading climate finance buyers Microsoft and Stripe, has released “Sustainable Agricultural BiomassBiomass is a complex biological organic or non-organic solid product derived from living or recently living organism and available naturally. Various types of wastes such as animal manure, waste paper, sludge and many industrial wastes are also treated as biomass because like natural biomass these More Sourcing for CDR: A Buyer’s Guide.” Published on May 28, 2026, the document establishes a globally applicable risk-management framework for sourcing agricultural residues as feedstocks for high-durability carbon dioxide removal (CDR) projects. Developed alongside climate scientists and industry stakeholders, the publication aims to standardize global procurement practices during a period of unprecedented market acceleration. Biomass-based pathways, including biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More, have come to dominate the voluntary carbon markets, accounting for more than 95 percent of all high-durability carbon removals contracted internationally in 2025.

The primary challenge addressed by this newly issued text is the critical lack of uniform, cross-border standardizations for agricultural residue collection, which introduces severe ecological and social risks. Biomass-based project developers operate across diverse global geographies characterized by vast disparities in land tenure systems, localized data availability, governance capacity, and regulatory enforcement. Poorly managed sourcing operations risk disrupting local food security, accelerating soil depletion, violating worker rights, or creating market distortions that destabilize agricultural communities. Without institutionalized diligence metrics, large-scale institutional buyers face immense difficulties ensuring that contracted carbon offsets represent genuine, permanent climate benefits devoid of supply-chain corruption.

To resolve these systematic procurement vulnerabilities, Carbon Direct, Microsoft, and Stripe formulated a standardizing solution built upon four core procurement pillars: traceability, community and worker protection, soil and environmental protection, and market integrity. This framework provides institutional buyers and project developers with concrete contractual parameters to conduct rigorous due diligence reviews and execute robust offtake agreements. Designed to complement evolving formal certification frameworks, the guidelines utilize historical data from established forest biomass sourcing metrics and previous editions of Microsoft’s high-quality carbon removal criteria, allowing stakeholders to safely navigate regional data deficits and complex monitoring infrastructures.

The outcome of this joint release is the immediate establishment of a scientifically backed benchmark that injects contractual confidence into the rapidly growing biomass-based carbon removal sector. By providing clear parameters for risk assessment, the guide protects developers from retrospective compliance liabilities and enables corporate buyers to enforce stringent supply-chain integrity. Dr. Zeke Hausfather of Stripe noted that correct sourcing practices are fundamental for scaling industry credibility, while Microsoft’s Phillip Goodman emphasized that setting a high bar for residue collection establishes the necessary market infrastructure to ensure that contracted capacity translates into verifiable, long-term atmospheric carbon reduction.