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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 …

2 days ago · The Supreme Court ruled that the maker of the weedkiller Roundup can't be sued for failing to warn that the popular product might cause cancer.

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2 days 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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3 days 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 …

2 days 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.

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.