Richard Powers’ “The Overstory” is overturning a lot of conventional thinking. It’s been called “visionary” and “monumental.” And though human characters shape the plot of this 500-page epic, the real heroes are trees.
Suzanne Simard is a forest ecologist who's revolutionizing our understanding of trees. She has discovered that trees use underground networks to communicate and cooperate with each other. It turns out that whole forests can exist as a superorganism.