Monsanto Co and U.S. farm groups sued California on Wednesday [Nov. 15] to stop the state from requiring cancer warnings on products containing the widely used weed killer glyphosate, which the company sells to farmers to apply to its genetically engineered crops.
The government of the most populous U.S. state added glyphosate, the main ingredient in Monsanto’s herbicide Roundup, to its list of cancer-causing chemicals in July and will require that products containing glyphosate carry warnings by July 2018.
California acted after the World Health Organization’s International Agency for Research on Cancer (IARC) concluded in 2015 that glyphosate was “probably carcinogenic”.
A large, long-term study on glyphosate use by U.S. agricultural workers, published on November 9 as part of a project known as the Agricultural Health Study (AHS), found no firm link between exposure to the chemical and cancer.
Reuters reported in June that an influential scientist was aware of new AHS research data while he was chairing a panel of experts reviewing evidence on glyphosate for IARC in 2015. He did not tell the panel about it because the data had not been published, and IARC’s review did not take it into account.
The GLP aggregated and excerpted this article to reflect the diversity of news, opinion and analysis. Read full, original post: Monsanto, U.S. farm groups sue California over glyphosate warnings