Lawyers on opposite sides of a lawsuit claiming that Monsanto’s Roundup weedkiller causes cancer took turns calling each other’s take on the case “offensive” during closing arguments Tuesday morning in San Francisco federal court.

Jennifer Moore of Moore Law Group—one of the lawyers for Northern California man Edwin Hardeman who developed non-Hodgkin’s lymphoma after about two decades of using Roundup to kill weeds on his 56-acre property—said that it was “reckless” and “offensive” for a Monsanto representative to say there “no evidence across the board” linking Roundup to cancer. Moore pointed to about 30 separate studies published prior to her client’s 2015 cancer diagnosis that raised flags about exposure to glyphosate, the active ingredient in Roundup.