Seymour and Girardet's book is a good beginning place for people who want to learn more about environmental problems and how they can tread less lightly upon the Earth. The text is clearly written at a level the average person can understand and a large number of drawings illustrate well the various systems and cycles they discuss. One of my favorites is the four-page spread (58-61) showing how food gets from the farm to our tables. One suspects that if more people followed the book's Six Principles for Good Housekeeping (18), the world would be in much better shape.
Readers must read critically, however. Several times I found the authors overstating their case. One wonders, for example, if more widespread paper recycling programs would really make this industry, "hugely profitable, and the scourge of paper litter would vanish." (90) I was simiarly skeptical of their discussion of the Borana tribe, a people who "live almost entirely on milk--with a little meat from time to time" but do not suffer from heart disease usually associated with a high fat diet. (70-1). These and similar exaggerations, perhaps made with best intentions, are dangerous ammunition for opponents who wish to discredit environmentalists.