Forest carbon is the most heavily scrutinized part of the carbon market, and for good reason. Too many legacy credits were issued on estimates and inaccurate data. Today, Isometric issued its first nature-based carbon removal certificates. With dynamic baselines, albedo accounting, and native species, they are the most scientifically rigorous reforestation certificates ever issued.
The 21,771 certificates were generated by Mombak's Reforesting the Brazilian Amazon Project 1 and certified under Isometric's CCP-approved Reforestation Protocol. These are also Mombak's first reforestation certificates and the world's first native-species reforestation certificates issued using dynamic baselines.
Mombak restores degraded pastureland in the Brazilian Amazon, turning it into biodiverse forest through native-species planting and assisted natural regeneration. The project spans 12 farms to date, where Mombak has planted almost 15 million trees across more than 100 native species, 16 of them endangered, generating close to 600 direct jobs in vulnerable Amazonian regions.
Mombak is also one of the world's leading carbon removal suppliers. It has secured offtakes worth more than $170 million in contracted revenue with buyers including Google, McKinsey, and Microsoft, and its Amazon project was the first selected by the Symbiosis Coalition. This issuance follows Mombak's first certificates, certified by Isometric in April for Enhanced Weathering.
"Voices all over the carbon removal market have been saying relentlessly that this is the time to move from promises to delivery, and this issuance is just that. Mombak and Isometric are issuing the highest-integrity tonnes available, earlier than expected," said Gabriel Silva, CEO of Mombak.
The Reforestation Protocol ensures every certificate represents a tonne of carbon dioxide removed from the atmosphere. Its independently set dynamic baselines compare each project against comparable unrestored land, so only removal beyond what would have happened anyway is certified. It is the first protocol to account for albedo change and requires native-species planting rather than monoculture to support biodiversity and resilient forests.
This issuance was powered by Certify, Isometric's agentic certification platform. Its AI agents cross-check every data point behind a claim, flagging the cases that need an independent verifier's judgment. The evidence and calculations behind every certificate are published on the Isometric Registry.
Isometric expanded into nature-based carbon removal in 2024. It now certifies projects across reforestation, improved forest management, mangrove restoration, agroforestry, and soil carbon, working with many of the market's leading suppliers.
