Beneath our feet lies a fungal superhighway stretching 68 quadrillion miles

Beneath our feet lies a vast hidden fungal superhighway that helps sustain much of life on Earth-and scientists have now mapped it for the first time. Researchers estimate that these underground networks stretch an astonishing 110 quadrillion kilometers, move about 4 billion tons of carbon dioxide into soils each year, and play a major role in supporting plants and regulating the climate.