(January 5, 2018, 7:20 AM EST) -- SAN FRANCISCO — A group of California residents comprising 50 plaintiffs on Dec. 13 filed five separate lawsuits against Monsanto Co. in California state court, seeking damages allegedly caused by exposure to glyphosate, the active ingredient in the herbicide Roundup (John Aiton, et al. v. Monsanto Company, et al., No. CGC-17- 563100, Calif. Super., San Francisco Co.)....