Scientists Map Global Underground Fungal Networks Spanning Quadrillions of Miles

1-Minute Brief

Understanding the scale of underground fungal networks could inform research on Earth's carbon cycle and ecosystem health.

Key Facts

• Researchers used machine learning and high-resolution imaging robots to measure and map underground fungal networks.
• A study found that subterranean fungal networks extend more than 100 quadrillion kilometers worldwide.
• Estimates suggest these fungal webs total approximately 68 quadrillion miles beneath Earth's surface.
• Popular Science reported a figure of 621 trillion miles for the global extent of fungal networks.
• Fungi are estimated to take up more mass than humans, according to National Geographic.

What Happened

Scientists have measured and mapped the vast extent of Earth's underground fungal networks using advanced imaging and machine learning techniques, revealing a global web spanning quadrillions of miles.

Why It Matters

These findings provide new insight into the planet's carbon circulatory system and the ecological role of fungi, which are crucial for nutrient cycling and soil health. Reports vary on the total length of fungal networks, with different sources citing figures ranging from 621 trillion to 68 quadrillion miles.

What's Next

Researchers may use this data to further study how fungal networks impact carbon storage, climate regulation, and ecosystem resilience.