Supreme Court weighs blocking Roundup cancer claims

Key Points:

• The Supreme Court is divided over whether to block thousands of lawsuits claiming Bayer's Roundup weedkiller failed to warn users about cancer risks, with some justices sympathetic to Bayer's argument that federal regulatory approval preempts state law claims.
• The case centers on John Durnell, who developed non-Hodgkin’s lymphoma after long-term Roundup use and was awarded $1.25 million by a jury, part of thousands of similar lawsuits against Bayer and its Monsanto unit.
• The World Health Organization classifies glyphosate, Roundup’s key ingredient, as "probably carcinogenic," while the EPA has deemed it unlikely to cause cancer when used as directed, leading to conflicting regulatory stances.
• Justices expressed concerns about balancing federal regulatory uniformity with states' rights to respond to evolving scientific evidence, with some worried that varying state laws could create legal chaos for companies.
• Bayer has set aside $16 billion for settlements and has stopped selling glyphosate-based Roundup for residential use in the U.S., while environmental groups and some health advocates criticize the company’s efforts to limit lawsuits and maintain market presence.