David Rosner served as an expert witness and produced an expert report for the State of Oregon in the recently-settled State of Oregon v. Monsanto Co et al., in which Monsanto was required to pay 698 million dollars for its role in polluting local waterways with PCBs, a toxic compound previously used in a variety of consumer goods.

David Rosner served as an expert witness and produced an expert report for the State of Oregon in the recently-settled State of Oregon v. Monsanto Co et al., in which Monsanto was required to pay 698 million dollars for its role in polluting local waterways with PCBs, a toxic compound previously used in a variety of consumer goods. This settlement marks the largest environmental damage recovery in Oregon history, and the funds will be used to clean local bodies of water and undo the environmental damage caused by PCBs.