Monsanto Co. has appealed a California court decision to allow the state’s environmental health office to proceed in listing the company’s signature Roundup weedkiller as a carcinogen, as scientific debate churns over the chemical’s cancer potential.
The company filed an March 22 of the California Superior Court for Fresno County’s decision earlier this month to dismiss Monsanto’s complaint against the Office of Environmental Health Hazard Assessment’s intention to list glyphosate under California’s Proposition 65 law, which discloses carcinogenic substances to the public (, Cal. Super. Ct., 16CECG00183, 3/22/17).
The appeal is not surprising. Monsanto has been fighting claims for decades that the main ingredient in Roundup—glyphosate—is linked to cancer. The battle intensified two years ago, when the World Health Organization’s International Agency for Research on Cancer deemed the chemical a “probable” carcinogen after a review of the scientific literature and other studies.