The main component of the well-known herbicide Roundup, glyphosate, has generated debate for many years. As of 2024, the Roundup manufacturer Bayer faces over 170,000 lawsuits alleging that the pesticide causes cancer, reports Fortune. Jury verdicts and settlements from these cases in the past and pending cases exceed $20 billion.
WHO’s IARC classified glyphosate as “probably carcinogenic to humans” nearly ten years ago. However, the U.S. EPA maintains to this day that glyphosate is “not likely to be carcinogenic to humans,” notes USRTK. With such conflicting information, what do we really know about glyphosate and its link to cancer?
The Matter of Roundup Weed Killer and Its Link to Cancer
Roundup, first introduced by Monsanto in the 1970s, is now one of the most widely used herbicides in the world. Glyphosate kills weeds by inhibiting a specific enzyme pathway critical for the growth of weed-like plants. However, concerns about its safety have grown over the years, particularly regarding its potential link to cancer.
The IARC classified glyphosate as “probably carcinogenic”. It is based on studies showing an increased risk of non-Hodgkin lymphoma among individuals exposed to the herbicide. This classification has been a cornerstone for the Roundup weed killer lawsuit against Bayer. It involves claims that the weed killer causes cancer.
On the other hand, the EPA, after reviewing numerous studies, concluded in 2020 that glyphosate is “not likely to be carcinogenic to humans” when used according to label directions. In 2022, the EPA was ordered to reassess this decision. However, as of 2024, the EPA’s classification of glyphosate remains entirely contradictory to the IARC’s.
Conflicting Studies on the Cancerous Link to Glyphosate and Their Implications
Scientific research on glyphosate is extensive but often contradictory. Some studies suggest a potential link to cancer, while others do not. Here’s an overview of key findings from both sides:
Studies Suggesting a Link to Cancer
An extensive review of studies surveyed people who were exposed to glyphosate-based herbicides, like those used in weed killers. The findings revealed that they had a higher risk of developing non-Hodgkin lymphoma, a type of cancer. The IARC had already found substantial evidence that glyphosate might cause cancer in humans based on research in the past.
Studies published in recent years irrefutably prove a link between glyphosate and cancer. A 2023 study successfully mapped the key carcinogenic features of glyphosate. Another study published that year found that glyphosate can mimic receptors in our bodies, which can lead to breast cancer. Further, a study from 2022 proved that glyphosate disrupts epigenetic factors that can expedite cancer.
Studies Refuting a Link to Cancer
The EPA reviewed the evidence on glyphosate and concluded that it is “not likely to be carcinogenic to humans.” Monsanto went a notch ahead and claimed on their website. It was found that glyphosate is 10x less toxic than caffeine, a common ingredient of our favorite daily beverage.
However, various experts note that these claims are merely clever juggling of words. According to TorHoerman Law, there are also accusations of corporate manipulation of the ‘studies’ reviewed by the EPA. Some even say that the EPA report is essentially ghostwritten by Monsanto.
Meta-analyses claim to have found no strong evidence linking glyphosate use to an increased risk of cancer. According to their data, glyphosate might not significantly affect overall cancer risk. For instance, a 2022 study directly states that it is a refusal to the claim that glyphosate, specifically ‘Roundup,’ causes non-Hodgkin lymphoma.
What Does This Mean for the Plaintiffs?
The conflicting conclusions from different studies have significant implications for plaintiffs claiming health damages from glyphosate exposure. This discrepancy creates a challenging legal environment.
Plaintiffs must navigate complex scientific data and regulatory opinions, often facing substantial legal hurdles. Courts have seen varying outcomes. Some juries award large settlements based on the belief that glyphosate causes cancer. However, other cases are dismissed due to insufficient evidence.
FAQs
What is glyphosate?
Glyphosate is the main component of many herbicides, including Roundup. It functions by blocking an enzyme route that is needed for weed to grow. It’s also used in non-agricultural settings like home gardens and urban areas. Despite its effectiveness, glyphosate has been the subject of controversy and regulatory scrutiny.
Is glyphosate safe to use?
Glyphosate’s safety is disputed. The IARC has categorized it as “probably carcinogenic,” despite the EPA’s opinion that it is safe when used according to instructions. Environmental concerns are also noted, especially related to the presence of glyphosate residues in food and water.
Can glyphosate cause cancer?
There is a discrepancy in the research regarding the relationship between glyphosate and cancer, specifically non-Hodgkin lymphoma. The safety of glyphosate remains a contested issue, with legal cases and research aiming to clarify its health impacts further.
What should I do if I have been exposed to glyphosate?
Remove any contaminated clothing and wash it separately to avoid further contact. If exposure worries you, seek advice from a healthcare provider. They can help you detect your health condition and potential risks. Always use personal protective equipment (PPE) if you need to handle glyphosate again.
Scientific research and regulatory opinions still dispute the relationship between glyphosate and cancer. The complexities of this issue must be understood by those exposed to glyphosate and those making informed decisions about it.