How to Avoid Toxic Roundup and Other Glyphosate-Based Herbicides That Are Poisoning Our Food, Soil, Air, Groundwater, Surface Waters, Rainwater

How to Avoid Toxic Roundup and Other Glyphosate-Based Herbicides That Are Poisoning Our Food, Soil, Air, Groundwater, Surface Waters, Rainwater


Glyphosate, explained

Questions swirl about the health effects of this common herbicide. We’ve got answers.


by Autumn Spanne
March 1, 2022
 
Since it first went on the market in 1974, glyphosate has been used for weed control, as an exfoliant to eradicate unwanted vegetation and illegal crops, and as a crop desiccant—a chemical applied to crops to dry them out more quickly before harvest.
What is glyphosate?
As a non-selective herbicide, it kills most plants. Scientists now link glyphosate to a number of human health problems, from cancer and neurological diseases to endocrine disruption and birth defects. But the full range of glyphosate’s health effects remains unknown.
What is glyphosate used for?
Various formulations of glyphosate-based herbicides, like Monsanto’s Roundup, are used in agriculture and forestry. Since the mid-1990s, global use has risen dramatically, thanks to the introduction of genetically engineered “Roundup Ready” crops like corn, soybeans, cotton, and alfalfa that resist damage from the herbicide. Today, Roundup and other glyphosate-based herbicides are also frequently used on lawns, gardens, parks, and school grounds for weed control.
Where is glyphosate?




Glyphosate not only enters our bodies when we come in direct contact with it, but when we breathe, eat, and drink.(Credit: summerbl4ck/flickr)
The widespread use of glyphosate makes it ubiquitous in the environment. Researchers have found it in our food, soil, air, groundwater, surface waters like lakes and rivers, and even in rainwater. That means glyphosate not only enters our bodies when we come in direct contact with it, but when we breathe, eat, and drink.
As worldwide use of glyphosate has increased during the past 25 years or so, human exposures to glyphosate-based herbicides have also risen significantly. A 2017 study found that human glyphosate exposure increased more than 500% in two decades.
Why is glyphosate a health concern?




Emerging research suggest glyphosate could be associated with shorter pregnancies, which can be detrimental to maternal health and increase the risk of infant mortality and learning problems in children. (Credit: Anna Carolina Vieira Santos/flickr)
Recent health studies are prompting calls for more scrutiny of glyphosate toxicity. Research now links glyphosate to health problems including cancer, reproductive problems, neurological diseases like ALS, endocrine disruption, and birth defects. Researchers are also beginning to explore potential impacts of glyphosate on pregnancy. Emerging findings suggest glyphosate could be associated with shorter pregnancies. Shorter pregnancies can be detrimental to maternal health and increase the risk of infant mortality and learning problems as children develop.
In 2015, the World Health Organization’s International Agency for Research on Cancer classified glyphosate as a probable human carcinogen. However, the U.S. Environmental Protection Agency has long maintained that glyphosate poses no risk for human health when used according to the manufacturer’s instructions—a finding criticized by many scientists.
While most health research on glyphosate to date focuses on cancer, there is much that science doesn’t yet know about its other potential impacts on human health. Much more research is needed to understand the full range of effects, how they may differ in children and adults, and the extent of glyphosate’s environmental impacts. Leading environmental health researchers, including EHN’s chief scientist Pete Myers, have called for more investigation and better monitoring of glyphosate in water, food, and human bodies.
In addition, scientists have raised concerns about the other ingredients in glyphosate-based herbicides. While glyphosate is the active ingredient, companies don’t have to publicly disclose other proprietary chemicals in these herbicide formulations. Consequently, regulators and researchers can’t fully study these “inert” chemicals to determine their health effects—alone and in combination with each other. Some scientists and activists want to reform the regulatory system so that companies can’t keep these chemicals secret.
Why are there so many glyphosate lawsuits right now?




Tens of thousands of lawsuits have been filed by people claiming that Roundup and other glyphosate-based herbicides caused their cancer. (Credit: Mike Mozart/flickr)
The World Health Organization’s 2015 declaration that glyphosate probably causes cancer opened the floodgates to litigation. The German company Bayer A.G. bought Monsanto in 2018, and tens of thousands of lawsuits have been filed against the company by people claiming that Roundup and other glyphosate-based herbicides caused their cancer, especially non-Hodgkin lymphoma.
Most claimants in these lawsuits worked in jobs like agriculture, maintenance, landscaping, and other professions with significant exposure risk, or used the products long-term on their lawns and gardens. They say the companies failed to adequately warn the public about health risks.
In 2021, Bayer announced it would replace glyphosate in all lawn and garden products sold in the United States by 2023. The company said the removal of glyphosate from these products is “exclusively to manage litigation risk and not because of any safety concerns,” and indicated it has no plans to remove glyphosate from professional and agricultural market products in the U.S.
One group that’s been largely excluded from glyphosate lawsuits is migrant farmworkers, who are on the front lines when it comes to glyphosate exposure. EHN found that fear of retaliation, and a lack of legal resources and legal immigration status, has diminished migrant farmworkers’ ability to seek justice and compensation.
Where is glyphosate used most?
Glyphosate is the most used pesticide on agricultural crops in the U.S., according to a 2019 analysis by the Midwest Center for Investigative Reporting. The Midwest, California, and Texas represent about three-quarters of agricultural glyphosate use in the U.S., with the Midwest alone comprising a full two-thirds of total use.
Glyphosate’s popularity comes in part from the fact that it is effective and relatively cheap. Low-cost versions from China and other countries with relatively lax environmental and health regulations flooded the market as glyphosate patents expired in the 1990s, making it even cheaper. This helps explain why its use has increased so dramatically in the past two decades. But some local, state, and national governments are bucking that trend.
Where is glyphosate banned?
Glyphosate has been or will soon be banned in at least 10 countries, including Mexico, Germany, Saudi Arabia, and Vietnam, and at least 15 others have restricted its use, according to Human Rights Watch. Individual cities and counties, including Los Angeles, Seattle, Miami, Baltimore, Austin, and Portland, have taken action to restrict or ban glyphosate, as have some states.
Can glyphosate exposure be avoided?




Choosing organic foods is one way to limit glyphosate exposure. (Credit: Open Grid Scheduler / Grid Engine/flickr)
Unfortunately, glyphosate is hard to avoid. We can’t stop breathing, eating, or drinking water.
However, avoiding GMO foods and eating more organic foods when possible can help. Choosing non-toxic methods of weed control for your lawn and garden also limits exposure. Joining with others to ban glyphosate-based products (and other pesticides) in schools, parks, and your community at large are other effective ways to reduce local exposures.
Ways to take action on glyphosate




Farmers from the Ecuador-Colombia border region voice concerns about economic and health impacts of aerial glyphosate spraying. (Credit: Cancillería del Ecuador)

• EHN has been reporting on glyphosate since we started 20 years ago. Monitoring our coverage of glyphosate legislation, litigation, and health research is a great way to stay informed on the latest developments. Check out our extensive story archive: You’ll find dozens of glyphosate stories by EHN as well as other leading news organizations. All of EHN’s stories are free to read, share, and republish with attribution.
  

• Contact your local government officials and state and national representatives.
  

• Link up with other concerned residents in your community to share information and take action.
  
• Here are a few links to organizations keeping track of the latest science on glyphosate and working to hold regulators, politicians, corporations, and employers accountable for protecting human health:
  

Environmental Working Group
Pesticide Action Network
Center for Food Safety
Non Toxic Communities
Beyond Pesticides
Herbicide-Free Campus
Herbicide Awareness and Research Project (University of California, San Diego)
En español:
Ecologistas en Acción
Greenpeace Mexico
International Pollutants Elimination Network (IPEN)
Red Universitaria de Ambiente y Salud
Campaña Internacional Sin Maíz No Hay País
El Poder del Consumidor

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