Science has a better grasp over time of how old-growth forest ecosystems work. But the study area is relatively small, given how much of the ancient forests of our country have been cut down.
Joan Maloof heads a nonprofit seeking ancient forest protection. She is also a writer, as with Nature's Temples: The Complex World of Old-Growth Forests.
Joan Maloof visited in 2016 to talk about her work, still in progress today.