The active ingredient found in Roundup weed killer, known as glyphosate, has been confirmed by both the World Health Organization's International Agency for Research on Cancer and California's Office of Environmental Health Hazard Assessment as a cancerous ingredient. In the forty five years since Roundup was introduced in the United States, it has been sprayed more than any other agricultural chemical in history.
According to thousands of lawsuits filed against Roundup's manufacturer, Monsanto (now owned by Bayer), knew for decades that Roundup's active ingredient, glyphosate, was dangerous, yet they did nothing to protect consumers. One expert witness revealed in court testimony that Monsanto conducted their safety studies in deceitful ways, using skin from animals and humans that had been “baked and cooked” so that the glyphosate would not be able to penetrate the skin and thus the study would show no harm.
On three separate occasions since Roundup's inception--in 1983, 1991, and 1996--companies hired by Monsanto to test Roundup's safety were charged with fraud by the EPA and the New York Attorney General.
Now, thousands of people who have been diagnosed with non-Hodgkin lymphoma and other cancers due to their exposure to Roundup are filing weed killer cancer lawsuits against Monsanto.