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Roundup is a brand name of herbicide originally produced by Monsanto, which Bayer acquired in 2018. Prior to the late-2010s formulations, it used broad-spectrum glyphosate-based herbicides. [1] As of …

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13 hours ago · The Supreme Court has sided with the maker of Roundup weedkiller, blocking thousands of lawsuits alleging it failed to warn users the product could cause cancer.

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1 day ago · The Supreme Court on Thursday sided against a Missouri man who claimed that the herbicide Roundup caused his cancer, backing an argument from the product’s manufacturer that the …

13 hours ago · The Supreme Court ruled that Monsanto cannot be held liable under state laws for failing to warn consumers about the alleged cancer risks of its weedkiller Roundup on its label.

13 hours ago · The court’s decision is likely to determine the future of thousands of lawsuits against Bayer, which manufactures the weedkiller, over similar claims.

Jan 2, 2026 · Problems with a 25-year-old landmark paper on the safety of Roundup’s active ingredient, glyphosate, have led to calls for the E.P.A. to reassess the widely used chemical.