Changing legal standards for proof of causation in hazardous waste tort cases. Plaintiffs' problems and congressional...

Increasing public awareness and concern over the possible dangers of exposure to toxic chemicals and hazardous wastes has resulted in a variety of lawsuits brought by plaintiffs claiming injury resulting from chemical exposure. The legal system and its traditional approach to tort cases demands that a plaintiff demonstrate that a particular chemical substance was the "cause in fact" of his injury. However, a plaintiff's inability to present credible scientific evidence sufficient to pinpoint conclusively the specific cause of his injury or disease, particularly in cancer cases, leads to defeat in courts of law. This article discusses the existing barriers to plaintiffs' recovery in toxic tort cases and reviews congressional proposals designed to ease plaintiffs' evidentiary burden and increase their chances of prevailing.