Lessons About Our Environment from the World's Oldest Living Things
"It is well that you should celebrate your Arbor Day thoughtfully, for within your lifetime the nation's need of trees will become serious. We of an older generation can get along with what we have, though with growing hardship; but in your full manhood and womanhood you will want what nature once so bountifully supplied and man so thoughtlessly destroyed; and because of that want you will reproach us, not for what we have used, but for what we have wasted."--Theodore Roosevelt


Trees have been essential to the success of human beings, providing food, shelter, warmth, transportation, and products. Trees are also necessary for a healthy atmosphere, literally connecting the earth with the sky. Once in wild abundance, trees have receded as we have clearcut the landscape in favor of building cities and farms, using up and abusing our forests in the process. Over the centuries, we have trained food trees, such as peach and apple trees, to produce more and better fruit at the expense of their lives. As Jeff Gillman, a specialist in the production and care of trees, explains in How Trees Die: The Past, Present, and Future of Our Forests, the death of a tree is as important to understanding our environment as how it lives. While not as readily apparent as other forms of domestication, our ancient and intimate relationship with trees has caused their lives to be inseparably entwined with ours. The environment we have created--what we put into the air and into the water, and how we change the land through farming, construction, irrigation, and highways--affects the world's entire population of trees, while the lives of the trees under our direct care in farms, orchards, or along a city boulevard depend almost entirely on our actions. Taking the reader on a fascinating journey through time and place, the author explains how we kill trees, often for profit, but also unintentionally through overwatering or overmulching, and sometimes simply by our movements around the globe, carrying foreign insects or disease. No matter how a tree's life ends, though, understanding the reason is essential to understanding the future of our environment.