July 9, 2026
How reforestation projects actually capture carbon
"Plant a tree" is the simplest climate pitch there is. The real mechanics are more interesting — and matter a lot for whether a project actually works.
Two different jobs: removing carbon vs. keeping it in the ground
Forest-based projects generally do one of two things. Reforestation and afforestation plant new trees, which pull CO₂ out of the atmosphere as they grow — this is carbon removal. Forest protection (often called avoided deforestation) stops an existing forest from being cut down, which keeps carbon that's already stored from being released — this is emissions avoidance. Both matter, and a well-built portfolio funds both.
Why a growing tree actually stores carbon
Trees build their trunks, branches, and roots largely out of carbon pulled from the air during photosynthesis. A young forest keeps absorbing CO₂ as it grows for decades; a mature, intact forest holds an enormous standing stock of carbon in its soil and biomass — which is exactly what's at risk when that forest is cleared.
What separates a real project from a vague one
- Additionality. The project wouldn't have happened without this funding — it's not something that was going to occur anyway.
- Permanence. The carbon stays stored for the long term, with a real plan for what happens if the forest is later damaged or burned.
- Independent verification. An outside verifier — not the project developer — confirms the claimed impact using a recognized methodology.
- Transparent tracking. Credits issued by vintage year are published, so you can see exactly how much carbon has been verified over time.
This is exactly what we screen for before a project enters our portfolio — see our full methodology.
See it in our own portfolio
Rather than take our word for it, you can look at the actual projects your subscription would fund — including their location, verifier, and independently tracked credit issuances — on our projects page.
FAQ
Is planting trees actually an effective climate solution?
Yes, when done well — new trees remove real CO₂ as they grow, and protecting existing forests prevents large stored-carbon releases. The catch is that quality varies hugely, which is why verification and permanence checks matter more than the headline number of trees.
How long does it take a forest to capture meaningful carbon?
New trees keep absorbing CO₂ for decades as they grow, which is why permanence commitments (often 40-100+ years) matter — the climate benefit compounds over time, and a forest cut down early loses most of its value.
What's the difference between reforestation and afforestation?
Reforestation replants trees where forest recently existed; afforestation plants trees where there wasn't forest in modern history. Both remove carbon as the trees grow.