The Understory — by Robert MacfarlaneOccasionally—once or twice in a lifetime if you are lucky—you encounter an idea so powerful in its implications that it unsettles the ground you walk on.
The first time I heard anyone speak of the “wood wide web,” more than a decade ago now, I was trying not to cry. A beloved friend was dying too young and too quickly. I had gone to see him for what I took to be the last time. He was tired by pain and drugs. We sat together, talked. My friend was a woodsman. Trees grew through his life and thought. His grandfather’s surname was Wood, he lived in a timber-framed house that he had built himself, and he had planted thousands of trees by hand over the years. “I have sap in my veins,” he wrote once.
That day I read aloud a poem that was important to us both, “Birches” by Robert Frost, in which climbing the snow-white trunks of birches becomes both a readying for death and a declaration of life. Then he told me about new research he had recently read concerning the interrelations of trees: how, when one of their number was sickening or under stress, they could share nutrients by means of an underground system that conjoined their roots beneath the soil, thereby sometimes nursing the sick tree back to health. It was a measure of my friend’s generosity of spirit that—so close to death himself—he could speak unjealously of this phenomenon of healing. He did not have the strength then to tell me the details of how this belowground sharing operated—how tree might invisibly reach out to tree within the soil. But I could not forget the image of that mysterious buried network, joining single trees into forest communities. It was planted in my mind, and there took root. Over the years I would encounter other mentions of the same extraordinary idea, and gradually these isolated fragments began to connect together into something like understanding.
https://emergencemagazine.org/story/the-understory/