Lawsuits claim Roundup weed killer causes cancer
Lawsuits Allege: Roundup Weed Killer Linked to Cancer

Specifically, plaintiffs claim that exposure to Roundup increases the risk of:
- Non-Hodgkin’s lymphoma (NHL) including B-cell and T-cell lymphoma
- Leukemia
The main ingredient in Roundup, glyphosate, is the most widely used herbicide in the world.
Monsanto Misstates Research Findings
The lawsuits also allege that chemical giant Monsanto deceived consumers about the safety of their product. Though it is marketed as safe enough to use around pets and humans, studies have found that Roundup potentially very harmful to humans. Court documents of Monsanto records and correspondence suggest that Monsanto worked with federal regulators at the EPA to manipulate the research and findings regarding the safety of glyphosate. Email records suggest that the company went so far as to “ghostwrite” academic studies about the safety of their product, which were then given to scholars to edit and sign.
In 2015, the International Agency for Research on Cancer concluded that “glyphosate is probably carcinogenic to humans.” The European Union is considering a total ban on the herbicide.
Who is affected?
People who have had high exposure to Roundup face an increased risk. Farmers, gardeners, landscapers, and those working in related occupations are more likely to have had long-term direct contact with large volumes of glyphosate.
When big companies put profits ahead of human lives, they must be held accountable. If you were diagnosed with non-Hodgkin’s lymphoma after using Roundup, contact Munley Law Personal Injury Attorneys for a free consultation.
Marion Munley
Marion Munley has been practicing personal injury law for nearly 40 years. She is triple board-certified by the National Board of Trial Advocacy for Truck Accident Law, Civil Trial Law, and Civil Practice Advocacy. She currently serves as Vice President of the American Association for Justice, an organization dedicated to safeguarding victims’ rights. Marion has won many multimillion-dollar recoveries for her clients, including one of the largest trucking accident settlements in history. She has been named a Top 10 Super Lawyer in Pennsylvania since 2023, a Best Lawyer in America, and was recently inducted to the Lawdragon Hall of Fame.
Posted in Product Liability & Recalls.
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