Activist: Medical conditions such as cancer and birth defects have been linked to pollutants in water  Organic pollutants such as dioxins, and inorganic pollutants such as mercury, are ingested by fish and move up the food chain to people, where they accumulate in tissue  Since most cancers and birth defects are incurable, we need to aim at their prevention
Clearly, the only effective way to reduce significantly their overall incidence is to halt industries known to produce these pollutants, given that such industries are unlikely to comply adequately with strict environmental regulations
fails to consider the possibility that a significant number of occurrences of cancer and birth defects may be caused by preventable factors other than industrial pollutants