EAST ST. LOUIS - After an expert witness for plaintiffs claiming weed killer paraquat caused Parkinson's disease testified to attributing 74% of the weight of his causation opinion on one study, the plaintiffs explain a shortage of research by accusing manufacturer Syngenta of corrupting science in general and the U.S. Environmental Protection Agency (EPA) in particular.
Internal documents from chemical giant Syngenta reveal tactics to sponsor sympathetic scientific papers and mislead regulators about unfavorable research