Ted is an authority on environmental links to reproductive and developmental disorders, neurotoxicity, and other public health problems. He is the science director of the Science and Environmental Health Network, and science advisor to Health Care Without Harm, an international campaign in support of environmentally responsible health care. His books Generations at Risk: Reproductive Health and the Environment (MIT Press, 1999) and In Harm’s Way: Toxic Threats to Child Development (Greater Boston Physicians for Social Responsibility, 2000) describe what scientists know and suspect about environmental causes for a host of disorders from learning disabilities to cancer. They also describe the great uncertainties and the limits of science in establishing links between cause and effect.