When the Forest Breathes

by Suzanne Simard

First published 2026

Deep in British Columbia's old-growth forests, ecologist Suzanne Simard risks everything to uncover how trees communicate. Her groundbreaking research challenges decades of forestry science by revealing underground fungal networks that connect trees in complex, living systems. Battling skeptical logging companies and academic rivals, Simard documents how trees share nutrients, send chemical warnings, and support each other through intricate root connections. More than a scientific investigation, her work becomes a high-stakes mission to prove that forests are not collections of individual organisms, but collaborative, intelligent ecosystems. At its heart, this is a story of radical scientific discovery and one researcher's fierce commitment to understanding the true nature of forest life.

Genres: science, nature, adventure, environment, biography-memoir, academic

Vibes: emotional, intimate, thought-provoking

Tropes: radical-discovery, scientific-mission

Setting: Canada, Canadian Wilderness

Period: Contemporary

336 pages · Hardcover · Knopf

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