How will the Isometric and Marsh insurance framework change financing for reforestation carbon projects?

Carbon removal registry Isometric has launched an insurance framework with broker Marsh, approving five insurers to protect carbon credits from certified reforestation projects. The framework is designed to improve the financial flexibility of those projects by allowing developers to replace part of their existing risk cushion with an insurance product.

The design targets a cost that weighs heavily on nature based removal projects. Reforestation credits carry the risk that trees burn, die or are lost, and registries typically manage that by holding back a share of credits in reserve. Those withheld credits cannot be sold, which ties up value for developers who need cash flow to fund planting and monitoring.

By letting developers swap part of that reserve for insurance, the framework frees credits that would otherwise sit idle. For buyers, the appeal is a clearer answer to the permanence question. A credit backed by an approved insurer gives procurement and sustainability teams something concrete to point to when asked how reversal risk is managed.

Corporate buyers building removal portfolios should pay attention to how insurance is treated in their due diligence. Questions to ask include which risks the policy covers, how claims are triggered and what happens to the credit if an insurer pays out. These details determine whether insurance genuinely substitutes for a reserve or simply adds another layer of paperwork to review.

The launch also fits a wider pattern of risk management tools appearing around carbon markets, from buffer pools to insurance products. As compliance and voluntary systems both wrestle with durability, expect more registries to experiment with financial instruments that shift reversal risk away from buyers. Teams reporting on removals under their transition plans will want to know which of these protections sit behind the credits they hold.