There are today between 50,000 and 100,000 synthetic chemicals in commercial production, and new synthetics are entering the market at an average rate of three per day. Most synthetics probably pose little risk for the environment or human health, but some are poisonous even in minute quantities. Recent research on certain highly toxic synthetics has linked them to serious human health effects in the parts per trillion range. Ecological research is uncovering extensive wildlife damage as well.

"November 2000."

Toxics and the precautionary principle -- Pulp and paper: designing the toxic out of the system -- Pesticides: substituting knowledge for synthetics -- PVC: turning complex problems into multiple opportunities -- Leveraging change.