Supreme Court Hears Case About Weedkiller Alleged to Cause Cancer

Thousands of lawsuits alleging that people were harmed by Roundup are pending across the country.

Protesters take part in a "People vs. Poison" rally against pesticides while the Supreme Court hears a pesticide liability case in Washington on April 27, 2026. Madalina Kilroy/The Epoch Times

The U.S. Supreme Court on April 27 grappled with Monsanto’s appeal that asks it to block thousands of lawsuits that allege that the company failed to warn consumers that Roundup, its popular weedkiller, could cause cancer.

A state-level jury previously ruled in favor of John Durnell, a Missouri man who developed non-Hodgkin lymphoma after exposure to Roundup, which was developed by Monsanto.