Amazon.com (ISBN 0393321835, Paperback)

J.R. McNeill, a professor of history at Georgetown University, visits the annals of the past century only to return to the present with bad news: in that 100-year span, he writes, the industrialized and developing nations of the world have wrought damage to nearly every part of the globe. That much seems obvious to even the most casual reader, but what emerges, and forcefully, from McNeill's pages is just how extensive that damage has been. For example, he writes, "soil degradation in one form or another now affects one-third of the world's land surface," larger by far than the world's cultivated areas. Things are worse in some places than in others; McNeill observes that Africa is "the only continent where food production per capita declined after 1960," due to the loss of productive soil. McNeill's litany continues: the air in most of the world's cities is perilously unhealthy; the drinking water across much of the planet is growing ever more polluted; the human species is increasingly locked "in a rigid and uneasy bond with modern agriculture," which trades the promise of abundant food for the use of carcinogenic pesticides and fossil fuels.

The environmental changes of the last century, McNeill closes by saying, are on an unprecedented scale, so much so that we can scarcely begin to fathom their implications. We can, however, start to think about them, and McNeill's book is a helpful primer. --Gregory McNamee