The U.S. Supreme Court ruled Thursday in favor of the manufacturer of the popular weed killer Roundup, blocking tens of thousands of lawsuits alleging that the herbicide caused their plaintiffs' cancers.
The case before the Supreme Court stems from John Durnell's 2019 lawsuit against Monsanto in which he claimed that he had developed non-Hodgkin's lymphoma, a type of blood cancer, because of his use of Roundup for two decades. In his lawsuit, he argued that Monsanto should have included a cancer warning label on Roundup. In 2025, the Missouri Court of Appeals affirmed a state jury's award of $1.25 million to Durnell based on the plaintiff's failure-to-warn theory.
