A study published in Nature on July 20 found that tree diversity in regenerated forests remains significantly lower than in old-growth forests even after 120 years of regrowth. The finding, based on decades of ecological data, challenges the assumption that reforestation projects can fully restore natural ecosystems within a human lifetime — and it has direct implications for the booming market in tokenized carbon credits.
A century of regrowth, still not enough
The research, led by an international team of ecologists, compared tree species richness in regenerated forests across the tropics with adjacent old-growth forests. Even after 120 years, the regenerated plots had fewer species, with the gap narrowing only slowly. The cause: rainforest clearing, which removes not just trees but the complex seed bank and soil biology needed for full recovery.
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Tokenized offsets under the microscope
Many crypto projects, such as those built on Regen Network and Toucan Protocol, issue tokens backed by carbon credits from reforestation. These credits are often marketed as “green” investments that offset emissions while restoring nature. But the Nature study suggests the ecological value of such credits may be fundamentally overestimated. If regenerated forests lack the biodiversity of old-growth, the carbon storage and ecosystem services they provide are also diminished.
The biodiversity discount no one priced in
The 120-year recovery timeline is a direct counterargument to the fast-money narrative of crypto. While digital assets can be created instantly, natural capital restoration is measured in decades. This creates a hidden “biodiversity discount” for tokenized credits from regenerated forests. Investors who price carbon credits solely on short-term carbon metrics may be ignoring a century-scale liability. As the market matures, this discount could trigger a repricing event.
ESG investors may take note
The study’s publication in a top-tier journal gives it high credibility. For institutional allocators weighing crypto’s environmental footprint against nature-based solutions, this research could tip the scales. It may accelerate the shift toward proof-of-stake chains and increase scrutiny on Bitcoin mining’s long-term sustainability. Regulators could cite the study to justify stricter disclosure requirements for carbon credit-backed tokens.
The study is likely to be cited in upcoming ESG reports and regulatory filings. Crypto projects relying on reforestation credits may need to reassess their tokenomics or face a growing credibility gap. For now, the market remains focused on macro fear, but the seeds of a longer-term narrative shift have been planted.
