How did Monsanto gain a monopoly in the seed market?

Monsanto developed glyphosate-resistant 'Roundup Ready' seeds, which, combined with their proprietary Roundup herbicide, created a system that locked farmers into purchasing both from the company. They also aggressively pursued legal action against farmers for patent infringement.

What is Agent Orange and what were its effects?

Agent Orange was a powerful herbicide mixture containing 2,4-D and 2,4,5-T, used by the U.S. military in Vietnam. It contained dioxin, a highly toxic contaminant, which caused severe health issues including cancer and birth defects in millions of people.

Why is glyphosate controversial?

Glyphosate, the active ingredient in Roundup, has been classified by the IARC as a probable human carcinogen due to concerns about genotoxicity and its potential to disrupt the gut microbiome. This classification contradicts findings from other agencies like the EPA.

Did Monsanto suppress research on glyphosate's dangers?

Yes, internal documents known as the Monsanto Papers suggest Monsanto colluded with regulators, ghostwrote safety studies (like the Williams, Crows, and Monroe paper), and employed strategies to discredit opposing research to maintain the perception of glyphosate's safety.

What happened after Bayer acquired Monsanto?

Bayer acquired Monsanto in 2018 for billions of dollars. Following the acquisition, Bayer inherited thousands of lawsuits alleging Roundup caused cancer and has since settled over 100,000 cases for over $10 billion.

Why are farmers no longer using glyphosate in Roundup?

Many weed species have developed resistance to glyphosate due to overuse. Additionally, the significant legal liabilities and public backlash have led Bayer to remove glyphosate from many commercial Roundup products, often replacing it with 2,4-D.

Exposing Why Farmers Can't Legally Replant Their Own Seeds

Veritasium

Education4 min read47 min video

Aug 31, 2025|19,310,828 views|495,553|39,786

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Key Moments

TL;DR

Monsanto's herbicides, especially Roundup, have a history of controversy, legal battles, and health concerns.

Key Insights

Monsanto's herbicides, like 24D and 245T, were revolutionary but contained dangerous impurities like dioxin, causing health issues.

Agent Orange, a mixture of Monsanto's herbicides, caused widespread health problems in Vietnam.

Glyphosate, the active ingredient in Roundup, was marketed as safe but is now linked to Non-Hodgkin's Lymphoma.

Monsanto manipulated scientific studies and colluded with regulators to protect its products and market share.

Monsanto's "Roundup Ready" seeds and technology use agreements created a monopoly, restricting farmers from saving or selling their own seeds.

Bayer acquired Monsanto and now faces billions in settlements for Roundup-related cancer lawsuits.

THE INVENTION OF SELECTIVE HERBICIDES

The development of synthetic plant growth hormones in the 1940s led to the creation of selective herbicides like 24D and 245T. These chemicals could effectively kill weeds without significantly harming crops, which were primarily grasses. This innovation revolutionized agriculture, offering an alternative to manual weed removal or dangerous chemicals like arsenic. Farmers could now efficiently manage weeds, leading to increased crop yields and transforming landscapes, including lawns, into more uniform green spaces.

THE DANGERS OF 245T AND DIOXIN CONTAMINATION

Production of 245T, a key herbicide, in facilities like Monsanto's West Virginia plant, led to severe health consequences for workers. An explosion revealed a toxic byproduct, later identified as dioxin, which caused skin lesions and other ailments. Despite early warnings from German researchers about dioxin contamination and its link to these ailments, Monsanto and other major producers, like Dow, allegedly downplayed or hid this information, prioritizing profits over worker and public safety.

AGENT ORANGE AND ITS DEVASTATING IMPACT

During the Vietnam War, the U.S. military deployed Agent Orange, a mixture of 24D and 245T, to defoliate jungles. Monsanto was a major supplier of these chemicals. Despite assurances of safety, Agent Orange contained dioxin, which exposed soldiers and civilians to serious health risks, including cancers and birth defects. The widespread use and devastating effects of Agent Orange led to public outcry and further scrutiny of the chemical companies involved.

THE RISE OF ROUNDUP AND GLYPHOSATE

In the 1970s, Monsanto developed glyphosate, the active ingredient in Roundup, which proved highly effective at killing all types of weeds by targeting the shikimate pathway essential for plant survival. Crucially, this pathway is absent in humans and animals, allowing Monsanto to market Roundup as safe. This herbicide enabled the practice of no-till farming, significantly simplifying agricultural processes and boosting crop yields, leading to its widespread adoption.

MONSANTO'S MONOPOLY AND THE 'ROUNDUP READY' SYSTEM

Monsanto's innovation extended to creating genetically modified 'Roundup Ready' seeds, engineered to resist glyphosate. This allowed farmers to spray Roundup liberally without harming their crops, ensuring their survival. Through technology use agreements, farmers were prohibited from saving or replanting their own seeds, forcing them to repurchase seeds from Monsanto annually and locking them into the company's herbicide and seed system. This created a near-monopoly over the agricultural market.

LEGAL MANEUVERS AND FARMER PROSECUTION

Monsanto aggressively defended its patents, employing private investigators and even a hotline for farmers to report alleged patent infringements. Farmers who did not sign Monsanto's agreements faced threats, lawsuits, and immense legal pressure, often leading to bankruptcy or costly settlements. Incidents like the murder of Mike Wallace highlighted the intense tensions and disputes that arose within farming communities due to these policies.

SCIENTIFIC MANIPULATION AND CANCER CONCERNS

In 2015, the International Agency for Research on Cancer (IARC) classified glyphosate as a probable human carcinogen, a finding Monsanto vehemently contested. Internal documents, known as the Monsanto Papers, revealed the company's history of ghostwriting scientific studies, influencing regulatory bodies like the EPA, and engaging in a 'let nothing go' strategy to discredit opposing research and maintain public trust, despite internal knowledge of potential health risks.

THE BAYER ACQUISITION AND ONGOING LITIGATION

In 2018, Bayer acquired Monsanto, inheriting its vast legal liabilities. The first major lawsuit, in which Dwayne Lee Johnson was awarded $289 million, set a precedent. Bayer has since faced over 100,000 lawsuits and paid billions in settlements for Roundup-related Non-Hodgkin's Lymphoma cases. Despite denials of wrongdoing, Bayer has removed glyphosate from some consumer products, partly due to public backlash and increasing weed resistance.

GLYPHOSATE RESISTANCE AND THE RETURN OF 24D

The widespread overuse of glyphosate has led to increased weed resistance, with over 60 species now immune to its effects. This has prompted companies to return to older herbicides, such as 24D, to combat these resistant weeds. This cyclical pattern underscores the ongoing challenges in weed management and the unintended consequences of relying on single-solution approaches in agriculture compounded by profit-driven motives.

COMPANIES CONTROLLING SCIENCE AND REGULATORS

The history of Monsanto's and Bayer's practices reveals a pattern of infiltrating academia and influencing regulatory agencies, creating a lack of trust in scientific independence. The significant role of industry-funded research casts doubt on the objectivity of safety assessments. Establishing robust firewalls between regulated industries and regulatory bodies is crucial to ensure transparency and maintain public confidence in scientific findings.

Mentioned in This Episode

●Supplements

●Products

●Companies

●Organizations

●Studies Cited

●Concepts

●People Referenced

Common Questions

Mike Wallace was murdered in 2016, allegedly due to conflicts related to his farming practices and his neighbor's use of Monsanto's herbicide system, leading to herbicide drift onto his non-resistant crops.

Topics

Monsanto Roundup Glyphosate Herbicides GMOs Corporate Malfeasance Dioxin Legal System Farmer Rights Seed Monopoly Bayer

Mentioned in this video

personMike Wallace

An Arkansas farmer who was murdered in 2016, reportedly over herbicide issues and his refusal to use Monsanto's system.

companyMonsanto

A major agricultural company that developed and marketed herbicides like 2,4-D, 2,4,5-T, and glyphosate (Roundup), and faced significant legal and public scrutiny over its practices and products.

supplementDioxin

A highly toxic byproduct formed during the production of 2,4,5-T at high temperatures, causing severe skin conditions and other health issues.

supplement2,4,5-T

A herbicide derived from 2,4-D, which was found to be contaminated with dioxin, leading to health problems for factory workers and soldiers exposed to Agent Orange.

conceptRoundup Ready

GMO seeds engineered by Monsanto to be resistant to glyphosate, allowing farmers to spray Roundup herbicide over their crops throughout the growing season.

conceptNon-Hodgkin's Lymphoma (NHL)

A type of cancer that targets the lymphatic system, which has been linked to exposure to glyphosate.

supplementGlyphosate

The active ingredient in Roundup, a highly effective herbicide that targets the shikimate pathway unique to plants. It was marketed as safe for humans and pets.

productRoundup

Monsanto's popular herbicide containing glyphosate. It allowed for no-till farming but was later found to be a probable human carcinogen.

organizationInternational Agency for Research on Cancer (IARC)

An independent science panel that classified glyphosate as a probable human carcinogen, contradicting claims made by Monsanto and other agencies.

studyWilliams, Crows, and Monroe study

A 2000 research paper on glyphosate safety that concluded Roundup posed no health risk, later revealed to be ghostwritten by Monsanto employees.

personDwayne Lee Johnson

The plaintiff in the first major lawsuit against Monsanto/Bayer, who developed non-Hodgkin's lymphoma after exposure to Roundup.

supplement2,4-D

A synthetic growth hormone that acts as a selective herbicide, effective against broadleaf weeds but not grasses.

companyBayer

A German chemical giant that acquired Monsanto in 2018, inheriting the company's legal liabilities related to Roundup lawsuits.

conceptOperation Ranchhand

The U.S. military operation that involved spraying Agent Orange in South Vietnam to destroy jungle cover used by the Viet Cong.

conceptShikimate pathway

A metabolic pathway found in plants, bacteria, and fungi, but not in humans or animals, which glyphosate disrupts, leading to plant death.

conceptMonsanto Papers

Internal Monsanto documents released to the public in 2017, revealing evidence of the company's manipulation of scientific studies and collusion with regulators.

personCarrie Gillum

Author of 'The Monsanto Papers,' a valuable resource for researching Monsanto's practices.

personJohn E. France

A Monsanto scientist credited with discovering glyphosate as a potent herbicide.

personDave Renan

An Indiana farmer who was threatened with a lawsuit by Monsanto for patent infringement despite never signing a contract with them.

supplementDicamba

Another herbicide product from Monsanto, mentioned in the context of herbicide drift affecting a farmer's non-resistant crops.

personBrent Wisner

A lawyer investigating Monsanto and leading lawsuits against the company over allegations that Roundup caused cancer.

personBart Elmore

Author of 'Seed Money,' a valuable resource for researching Monsanto's practices.