mycorrhizae

Young trees grow in a pot in the foreground. Other potted trees are in the background.

How wildfire changes the world underground

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When a wildfire burns through a forest, it can leave behind a charred and seemingly lifeless landscape. But before long, seedlings sprout in the burned, black soil—the promise of a renewed forest. What kind of forest will it be? Which …

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In an early version of a now-famous passage, John Muir wrote, “When we try to pick out anything by itself we find that it is bound fast by a thousand invisible cords that cannot be broken, to everything in the …