The Environmental Protection Agency concluded in June that there was "no convincing evidence" that glyphosate, the most widely used herbicide in the U.S. and the world, is an endocrine disruptor. The decision was based almost entirely on pesticide industry studies. Most of the studies were sponsored by Monsanto or an industry group called the Joint Glyphosate Task Force. Of the small minority of independently funded studies that the agency considered in determining whether the chemical poses a danger to the endocrine system, three of five found that it did. One, for instance, found that exposure to glyphosate-Roundup "may induce significant adverse effects on the reproductive system of male Wistar rats." Another concluded that "low and environmentally relevant concentrations of glyphosate possessed estrogenic activity." And a review of the literature turns up many more peer-reviewed studies finding glyphosate can interfere with hormones. Many of the industry-funded studies contained data that suggested that exposure to glyphosate had serious effects. Yet in each case, sometimes even after animals died, the scientists found reasons to discount the findings - or to simply dismiss them. Having companies fund and perform studies that affect them financially [is] the standard practice at EPA. The International Agency for Research on Cancer labeled glyphosate a probable carcinogen in March.