Calculus Carbon partners with institutions in market-making for Nature-Based Solutions, carbon finance, and Natural Capital projects across London, Singapore, and Bangalore.

Insurance Over Buffer Pool Contributions: The Cashflow and Debt Service Test for Durability Risk

Verra's durability pilot lets insurance replace buffer pool contributions. The project finance question is whether cover pricing, renewal and tenor align with issuance timing and debt schedules.

A Long-Term Buyer Does Not Remove Pre-Financing Risk. It Makes the Risk Visible.

Project Finance · Nature-Based Solutions · 17 August 2026 A Long-Term Buyer Does Not Remove Pre-Financing Risk. It Makes the Risk Visible. Green Earth's Uganda Bulindi Verified Emission Reduction Purchase Agreement contracts USD 4.8M of future sales on a payment-on-delivery basis. The four-year gap between capex and first payment

Delivery Risk Terms in a Carbon Offtake Are Project Finance Terms

Project Finance · Nature-Based Solutions · 12 August 2026 Delivery Risk Terms in a Carbon Offtake Are Project Finance Terms Nature-based-solutions offtake clauses on buyer termination, security instruments and insurance decide whether a long-term contract can raise debt at all. By the Calculus Carbon Capital Markets Desk · Published 12 August 2026 · Reading

Same Bank on Both Sides: The Charm-JPMorgan Prototype for Carbon Project Finance

JPMorgan's USD 20M debt to Charm Industrial and its 61,500-tonne offtake are the same bank on both sides. That is the prototype for carbon project finance.

The Commodity Core Comes First: What Mountain Hazelnuts Tells Us About Financing Nature-Based Solutions

Mountain Hazelnuts spent seventeen years building the commodity leg before carbon entered the model. That sequence is the underwriting lesson for frontier NbS in the Global South.

The Two 50s: How Asset-Level DFC Guarantees and Outcome-Gated Carry Make Indonesian Agri Debt Underwritable

Blended Finance · Project Finance · 3 August 2026 The Two 50s: How Asset-Level DFC Guarantees and Outcome-Gated Carry Make Indonesian Agri Debt Underwritable ADM Capital’s Asia Climate-smart Landscapes Fund closed last week at USD 48M. The mechanic inside the vehicle is more interesting than the headline. Two structural design choices,

Contracted Durability: Who Pays for Carbon That Sits Decades Past Loan Tenor?

Contracted durability names the tail-liability gap sitting decades beyond loan tenor. Who pays, and when, determines whether project finance for carbon deepens or stalls.

The Missing Template: Why Global South Nature-Based Working-Farm Agroforestry Sits in a US$40 to 80 Million Financing Sandwich

The San Miguel US$81 million capital stack is the template Global South nature-based working-farm agroforestry has been waiting for. Half development-finance, half commercial bank, one facility.

The Offtake as Collateral: How the Carbon VC Contraction Is Reshaping Project Finance

Carbon VC funding fell 61 percent in H1 2026. Signed offtake value hit US$12.25 billion in 2025. Hedge funds, commodity trading firms, and private credit are now underwriting against long-tenor offtake contracts.

The Forward Market and the Delivery Market Are Not the Same

Cumulative CDR forward offtakes have reached 48.5 million tonnes against 2.65 million tonnes of issuances since 2022. The 18x gap is now the pricing question that allocators, buyers, and developers have to sit with.

Indonesia's SRUK: Authorisation Becomes the Ledger Entry

Indonesia's Carbon Unit Registration System, launched under Presidential Regulation 110/2025, moves cross-border authorisation from bilateral treaty to ministerial ledger entry. The read for institutional capital.

Agroforestry Moved from Spot to Term: Why 10-Year Corporate Offtake Makes Working-Farm NbS Project-Financeable

Three tier-1 corporates just signed 10-year offtake on a single agroforestry project. The consequential signal is not demand, it is tenor and bankability.