Beneath meadows and prairies, a living infrastructure older than civilization has been quietly cycling carbon on a planetary scale — and science has only now found a way to see it. Researchers from SPUN, Vrije Universiteit Amsterdam, and partner institutions have produced the first global map of arbuscular mycorrhizal fungal networks, revealing 110 quadrillion kilometres of hyphal threads sequestering the equivalent of roughly 4 billion tonnes of CO2 each year. The map overturns a long-held assumption: it is grasslands, not rainforests, that harbour the densest fungal life on Earth, while the
MycoStories
· Jun 20, 2026
· environment
· 4 min read
High
Sourcing: Verified
First Global Map Reveals 110 Quadrillion km of Fungal Networks Beneath Earth's Soil
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Climate & Environment
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Bias & Framing
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Geopolitical Impact
🌎
Scientific discovery of fungal networks has minimal geopolitical implications; primarily relevant to climate science, agriculture policy, and land management strategies across regions.
Escalation Risk
low
Confidence
MED
Global (all regions with grasslands and croplands)
Sub-Saharan Africa
South Asia
Latin America
North America
Europe
Shifts knowledge advantage toward nations investing in soil science and climate research; may influence agricultural policy competition and carbon credit frameworks; developing nations with large grassland/cropland areas gain scientific leverage in climate negotiations.
Similar to the Green Revolution's geopolitical impacts—scientific agricultural breakthroughs redistribute economic and diplomatic advantage among nations based on adoption capacity and land resources.
Economic Lens
📈
Discovery of 110 quadrillion km of fungal networks sequestering 4B tons CO2 annually could drive agricultural biotech investment and carbon credit markets, but cropland fungal deficiency (47% lower density) signals productivity risks.
Market Signal
mixed
Confidence
MED
Agriculture & Agribusiness
Carbon Credits & Climate Tech
Biotechnology & Soil Science
Environmental Services
Food Production
Renewable Energy (carbon offsets)
Potential long-term benefits through improved soil health and crop resilience, but near-term food prices may face pressure if agricultural practices require costly fungal network restoration. Carbon offset markets could lower energy/product costs if fungal sequestration becomes monetized.
Likely regulatory shifts toward fungal-friendly agricultural practices; potential subsidies for regenerative farming; incorporation of soil fungal health into carbon accounting frameworks; possible restrictions on fungicides/tillage practices that damage networks; agricultural extension programs promoting mycorrhizal-compatible farming.