To the average observer, environmental crises may seem to pop up as randomly as Starbucks franchises. Every so often, worries about a substance such as DDT or dioxin surface and, after a public outcry and tireless campaigning by environmental groups, some action is taken. In his powerful new book Pandora's Poison, Joe Thornton makes the point that many of the environmental problems that have come to light in the past 40 years are not isolated from each other at all but rather have been caused by just one class of chemicals: organochlorines.
