MethodologiesRainbow issues science-driven carbon credits, signifying that CO₂ has either been prevented from entering the atmosphere or actively removed from it. 
But we go beyond carbon. Our methodologies also ensure that projects deliver additional positive environmental and social benefits, without instigating any adverse effects.Each project is validated through a rigorous, transparent scientific evaluation and quantification.

By continuously updating and openly sharing our methodologies, we aim to ensure project integrity without creating friction. This gives developers and buyers the clarity and confidence they need to succeed.MethodologiesRegistryDocumentation

Allavoidanceremoval

• Battery Second LifeAvoidance
• Biobased Construction MaterialsAvoidance, Removal
• Biogas from anaerobic digestionAvoidance
• Biomass carbon removal and storageRemoval
• Enhanced rock weathering—
• Refurbishing of electronic devicesAvoidance

1 Projects

Overall Available Credits0tCO₂eqOverall forecasted delivery11423tCO₂eqLast update29/06/25

Allavoidanceremoval

• Battery Second LifeAvoidanceRead more
• Biobased Construction MaterialsAvoidance, RemovalRead more
• Biogas from anaerobic digestionAvoidanceRead more
• Biomass carbon removal and storageRemovalRead more
• Enhanced rock weatheringRead more
• Refurbishing of electronic devicesAvoidanceRead more

Our registryThe Rainbow registry is a public ledger for carbon credits issued under the Rainbow Standard. It ensures full transparency on certified projects and credits, tracks carbon credits throughout their lifecycle, and connects projects with resellers to facilitate transactionsGo to registry