Forests benefit from whole tree architecture because Gundersen practices young growth forestry -- he takes younger trees that are invasive, diseased and wind-bent, leaving the oldest, tallest, and straightest to repopulate the forest. “Much like a garden, if you thin and prune woods, they can actually get healthier and sequester more CO2,” he says. With healthier trees come healthier forests, and, yes, he maintains, healthier houses...