"US supreme court blocks thousands of lawsuits over Roundup maker’s pesticide warning labels", 25 June 2026

The US supreme court has found in favor of the former Monsanto company in a ruling that is expected to block thousands of lawsuits filed by people alleging the key ingredient in the weed killer Roundup causes cancer...

...The case, Monsanto v Durnell, specifically dealt with the question of whether a federal law that gives the Environmental Protection Agency (EPA) regulatory authority over pesticides preempts state claims that a company failed to warn users of certain product risks when the EPA itself has not required such warnings...

...In her dissenting opinion, Justice Jackson said: “Fifra expressly limits States’ authority to regulate pesticide labels, but it does not eliminate that authority”...

...The case at the heart of the decision deals with Monsanto’s glyphosate – a weed-killing chemical used in the popular Roundup brand and numerous other herbicide products sold by the former Monsanto company, which is now owned by Germany’s Bayer....

...Bayer maintains that its products don’t cause cancer, and also asserts that under the Fifra the EPA is the key authority for determining if its product necessitated a cancer warning. The EPA has not required such a warning and has taken the position that glyphosate is “unlikely” to be carcinogenic, so the company cannot be held liable for failing to warn, according to Bayer’s argument...

...In a statement, Bayer described the ruling as “good for science, farmers, and industries that depend on regulatory clarity for innovation”...