How Long Has The Link Between Roundup Weed Killer And Cancer Been Known?

How Long Has The Link Between Roundup Weed Killer And Cancer Been Known? There was evidence presented in Roundup weed killer cancer litigation that Monsanto knew about the possible link as early as 1983.

There is a reason to believe that Roundup weed killer manufacturer Monsanto knew the herbicide’s active ingredient glyphosate could cause cancer in mice as early as 1983. Because of the results of the 1983 study, the U.S. Environmental Protection Agency classified glyphosate as a “possible human oncogene” in 1985.

This information comes from testimony provided in the first bellwether trial that occurred in early 2019 as a part of the multidistrict litigation (MDL) against Monsanto and current parent company Bayer AG. The plaintiff won this case and recovered significant punitive damages, as a result, showing other plaintiffs in MDL 2741 that jurors believed the testimony that Monsanto knew much more than they told the public—and much earlier.

Research Spanning Decades Establishes a Link Between Glyphosate Herbicides and Cancer

Studies that establish a strong link between glyphosate-based herbicides and non-Hodgkin’s lymphoma in humans go back as far as 1986. A study conducted in the mid-80s and published in the Journal of the American Medical Association (JAMA) looked at the instances of non-Hodgkin’s lymphoma in farmers and nonfarmers.

It found that the men who used glyphosate herbicides more than 20 days per year—the farmers—were six times more likely to develop non-Hodgkin’s lymphoma than nonfarmers who did not use the products. Those who mixed and applied herbicide on their own had an even greater increase in risk.

Later, in 2001, Canadian researchers saw similar results when studying men who used insecticides and herbicides that are organophosphorus in nature, including Roundup. This study found that the men who used these chemicals had a 73% increased risk of non-Hodgkin’s lymphoma.

Since 2015, the World Health Organization Has Considered Glyphosate “Probably Carcinogenic”

In 2015, the World Health Organization’s International Agency for Research on Cancer (IARC) undertook an effort to look into the research linking glyphosate herbicides and non-Hodgkin’s lymphoma. The IARC reviewed all independent studies that were:

  • Publicly available
  • Pertinent
  • Free from vested interests, such as those paid for by Monsanto

In all, the IARC reviewed about 1,000 studies. This included both studies that considered the risk to those in one occupation versus those not in that job—such as farmers versus nonfarmers—and experimental studies. As a result of this systematic review, the IARC took action and classified glyphosate as “probably carcinogenic to humans.”

Monsanto May Have Known About the Dangers of Roundup’s Main Ingredient for More Than Three Decades

All three Roundup weed killer cancer cases that have gone to trial as of September 2019 have awarded the plaintiffs large payouts that include punitive damages. There is no doubt that the evidence showing Monsanto knew about the dangers of glyphosate-based herbicides as early as 1983 played a role in the minds of jurors in each case.

Testimony in the first bellwether case in the MDL also appears to point fingers at Monsanto for manipulating scientific research and covering up the link between its product and non-Hodgkin’s lymphoma.

Monsanto and parent company Bayer AG continue to appeal these verdicts and aggressively defend their popular weed killer as evidence stacks up against them in each case.

Talk to a Roundup Weed Killer Cancer Claim Attorney Today

If you used Roundup weed killer and later received a non-Hodgkin’s lymphoma diagnosis, you may be eligible to join an MDL already in progress or file an individual lawsuit against Monsanto and Bayer AG. Let an attorney from Zanes Law review your case today.

We can handle your case on a contingency basis. You pay nothing out of pocket, and we only collect attorney’s fees if you get a court award or settlement. Call

(866) 499-8989 today to discuss your case with a member of our team.

This information comes from testimony provided in the first bellwether trial that occurred in early 2019 as a part of the multidistrict litigation (MDL) against Monsanto and current parent company Bayer AG. The plaintiff won this case and recovered significant punitive damages, as a result, showing other plaintiffs in MDL 2741 that jurors believed the testimony that Monsanto knew much more than they told the public—and much earlier.

Research Spanning Decades Establishes a Link Between Glyphosate Herbicides and Cancer

Studies that establish a strong link between glyphosate-based herbicides and non-Hodgkin’s lymphoma in humans go back as far as 1986. A study conducted in the mid-80s and published in the Journal of the American Medical Association (JAMA) looked at the instances of non-Hodgkin’s lymphoma in farmers and nonfarmers.

It found that the men who used glyphosate herbicides more than 20 days per year—the farmers—were six times more likely to develop non-Hodgkin’s lymphoma than nonfarmers who did not use the products. Those who mixed and applied herbicide on their own had an even greater increase in risk.

Later, in 2001, Canadian researchers saw similar results when studying men who used insecticides and herbicides that are organophosphorus in nature, including Roundup. This study found that the men who used these chemicals had a 73% increased risk of non-Hodgkin’s lymphoma.

Since 2015, the World Health Organization Has Considered Glyphosate “Probably Carcinogenic”

In 2015, the World Health Organization’s International Agency for Research on Cancer (IARC) undertook an effort to look into the research linking glyphosate herbicides and non-Hodgkin’s lymphoma. The IARC reviewed all independent studies that were:

  • Publicly available
  • Pertinent
  • Free from vested interests, such as those paid for by Monsanto

In all, the IARC reviewed about 1,000 studies. This included both studies that considered the risk to those in one occupation versus those not in that job—such as farmers versus nonfarmers—and experimental studies. As a result of this systematic review, the IARC took action and classified glyphosate as “probably carcinogenic to humans.”

Monsanto May Have Known About the Dangers of Roundup’s Main Ingredient for More Than Three Decades

All three Roundup weed killer cancer cases that have gone to trial as of September 2019 have awarded the plaintiffs large payouts that include punitive damages. There is no doubt that the evidence showing Monsanto knew about the dangers of glyphosate-based herbicides as early as 1983 played a role in the minds of jurors in each case.

Testimony in the first bellwether case in the MDL also appears to point fingers at Monsanto for manipulating scientific research and covering up the link between its product and non-Hodgkin’s lymphoma.

Monsanto and parent company Bayer AG continue to appeal these verdicts and aggressively defend their popular weed killer as evidence stacks up against them in each case.

Talk to a Roundup Weed Killer Cancer Claim Attorney Today

If you used Roundup weed killer and later received a non-Hodgkin’s lymphoma diagnosis, you may be eligible to join an MDL already in progress or file an individual lawsuit against Monsanto and Bayer AG. Let an attorney from Zanes Law review your case today.

We can handle your case on a contingency basis. You pay nothing out of pocket, and we only collect attorney’s fees if you get a court award or settlement. Call (866) 499-8989 today to discuss your case with a member of our team.

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