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center for food safety
EPA Ripped for 'Routinely' Failing to Label Cancer-Causing Pesticides
"If the agency is going to allow such chemicals to be freely sold at Home Depot, Walmart, and farm supply stores, the very least the EPA must do is require a clear cancer warning on the label," said one critic.
Mar 30, 2026
The US Environmental Protection Agency has repeatedly failed to warn consumers of the cancer risks posed by pesticides—even when its own research has found those products to be carcinogenic, a pair of green groups said Monday.
The Center for Food Safety studied the EPA's permitted risk level in active components of both currently approved and legacy pesticides. CFS researchers found that the EPA allowed pesticides with a cancer risk "as high as 1 in every 100 people exposed, a far greater level than the EPA’s benchmark of a 1-in-a-million chance of developing cancer."
"Of the 570 unique pesticide chemicals that EPA’s Office of Pesticide program has classified for carcinogenic potential since 1985, over one-third (200, or 35%) are either possible human carcinogens (127) or likely to be carcinogenic to humans (73)," the CFS report notes. "The status of 62 others (11%) is uncertain, because EPA lacks sufficient data to make a determination.
A second report, from the Center for Biological Diversity (CBD), shows that of the 200 pesticides that are possible or likely human carcinogens, 125 are still registered for use.
CBD analyzed the labels of every pesticide currently approved by the EPA and found that the agency has placed cancer warnings on just 69 of 4,919 pesticide labels (1.4%) "containing an active ingredient that the agency has designated a 'likely' human carcinogen." Additionally, the EPA has put cancer warnings on just 242 of the 22,147 pesticide labels (1.1%) that "contain an ingredient the agency has designated as a 'possible' human carcinogen."
CFS science director Bill Freeses said in a statement Monday: “It’s bad enough that the EPA approves cancer-causing pesticides. But if the agency is going to allow such chemicals to be freely sold at Home Depot, Walmart, and farm supply stores, the very least the EPA must do is require a clear cancer warning on the label. Warnings save lives by incentivizing users to wear protective equipment that reduces risk."
Lori Ann Burd, director of environmental health at the CBD, said on Monday that “it's dumbfounding that the EPA has failed to require any cancer warning on thousands of pesticide products sold to the public that the agency itself has linked to cancer."
“Why should anyone have confidence in the EPA’s ability to keep tabs on the pesticide industry and protect us all from harmful poisons when it won’t even compel companies to put long-term health warnings on pesticides it knows are really dangerous?" she added.
Last month, CFS, CBD, and others denounced the EPA's reapproval of the pesticide dicamba—which scientific studies have linked to increased risk of cancer and hypothyroidism in high-dose exposure—for certain cotton and soybean crops.
The new CFS and CBD analyses come ahead of next month's oral arguments in Monsanto Company v. John L. Durnell, a case before the US Supreme Court in which Bayer, the Germany-based pharma giant that bought Monsanto in 2018, is seeking substantial immunity from future lawsuits filed by people in the United States who used glyphosate-based products like Roundup weedkiller and were then diagnosed with rare pesticide-linked cancers. The company has paid out billions of dollars to settle such suits.
CBD and other advocacy groups have also warned that the industry-backed Farm Bill currently advancing in the Republican-controlled Congress weakens or delays pesticide safety regulation, preempts state-level cancer warning rules, and shields chemical companies from lawsuits.
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'Industry Cronies' at Trump's EPA Reapprove Dangerous Pesticide Dicamba
"It’s hard to see how Making America Healthy Again was anything but another broken campaign promise," said one critic.
Feb 06, 2026
The US Environmental Protection Agency on Friday announced its anticipated reapproval of dicamba for two key crops, a move which, given the pesticide's proven health risks, places the EPA at apparent odds with President Donald Trump's vow to "Make America Healthy Again."
“The industry cronies at the EPA just approved a pesticide that drifts away from application sites for miles and poisons everything it touches,” Nathan Donley, environmental health science director at the Center for Biological Diversity, said in response to Friday's announcement.
“With the EPA taking aggressive pro-pesticide industry actions like this, it’s hard to see how Making America Healthy Again was anything but another broken campaign promise," Donley added. "When push comes to shove, this administration is willing to bend over backward to appease the pesticide industry, regardless of the consequences to public health or the environment.”
The EPA said in a statement that the agency "established the strongest protections in agency history for over-the-top (OTT) dicamba application on dicamba-tolerant cotton and soybean crops," and that "this decision responds directly to the strong advocacy of America's cotton and soybean farmers."
While scientific studies have linked exposure to high levels of dicamba to increased risk of cancer and hypothyroidism and the European Union has classified dicamba as a category II suspected endocrine disruptor, the EPA said Friday that "when applied according to the new label instructions," it "found no unreasonable risk to human health and the environment from OTT dicamba use."
This is the third time the EPA has approved dicamba for OTT use. On both prior occasions, federal courts blocked the approvals, citing underestimation of the risk of chemical drift that could harm neighboring farms.
The agency highlighted new restrictions on dicamba use it said will reduce risk of drift.
"EPA recognizes that previous drift issues created legitimate concerns, and designed these new label restrictions to directly address them, including cutting the amount of dicamba that can be used annually in half, doubling required safety agents, requiring conservation practices to protect endangered species, and restricting applications during high temperatures when exposure and volatility risks increase," it said.
Critics noted that the EPA during the Biden administration published a report revealing that during Trump’s first term, senior administration officials intentionally excluded scientific evidence of dicamba-related hazards, including the risk of widespread drift damage, prior to a previous reapproval.
Others pointed to the recent appointment of former American Soybean Associate lobbyist and dicamba advocate Kyle Kunkler as the EPA's pesticides chief.
"Kunkler works under two former lobbyists for the American Chemistry Council, Nancy Beck and Lynn Dekleva, who are now overseen by a fourth industry lobbyist, Doug Troutman, who was recently confirmed to lead the chemicals office following endorsement by the chemical council," the Center for Food Safety (CFS) noted Friday.
The Trump EPA has also come under fire for promoting the alleged safety of atrazine, a herbicide that the World Health Organization says probably causes cancer, and for pushing the US Supreme Court to shield Bayer, which makes the likely carcinogenic weedkiller Roundup, from thousands of lawsuits.
CFS science director Bill Freese said that “the Trump administration’s hostility to farmers and rural America knows no bounds."
“Dicamba drift damage threatens farmers’ livelihoods and tears apart rural communities," Freese added. "And these are farmers and communities already reeling from Trump’s [Immigration and Customs Enforcement] raids on farmworkers, the trade war shutdown of soybean exports to China, and Trump’s bailout of Argentina, whose farmers are selling soybeans to the Chinese—soybeans China used to buy from American growers.”
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A Month After Trump Doubles Down on Atrazine, WHO Dubs It 'Probably Carcinogenic to Humans'
"It is outrageously irresponsible that we still allow use of this dangerous poison in the United States," said the Center for Biological Diversity's environmental health science director.
Nov 21, 2025
Just a month after the Trump administration doubled down on the alleged safety of atrazine, a United Nations agency said on Friday that the pesticide—which is banned by dozens of countries but commonly used on corn, sugarcane, and sorghum in the United States—probably causes cancer.
"It is outrageously irresponsible that we still allow use of this dangerous poison in the United States," said Nathan Donley, the Center for Biological Diversity's environmental health science director, in a Friday statement. "This finding is just the latest indictment of the industry-controlled US pesticide oversight process that is failing to protect people and wildlife from chemicals linked to numerous health harms."
Research into and alarm over atrazine have mounted since the World Health Organization's International Agency for Research on Cancer initially concluded in 1999 that it was not classifiable as carcinogenic to humans. IACR has now announced new findings for atrazine and alachlor, another herbicide widely used on crops, as well as the agricultural fungicide vinclozolin.
Of the three, only atrazine was previously examined by IARC. From October 28 to November 4, a working group of 22 international experts from a dozen countries met in France to evaluate the carcinogenicity of pesticides. They classified vinclozolin as "possibly carcinogenic to humans, and both alachlor and atrazine as "probably carcinogenic to humans."
The latter two decisions were based on a combination of limited evidence for cancer in humans, sufficient evidence for cancer in animals, and strong mechanistic evidence in experimental systems. IARC said that "for atrazine, positive associations have been observed for non-Hodgkin lymphoma that is positive for the chromosomal translocation t(14;18)."
A couple of weeks before that IARC meeting, the Trump administration sparked outrage with a US Fish and Wildlife Service (USFWS) draft opinion claiming that atrazine does not pose an extinction risk to a single protected animal or plant.
That draft opinion came as President Donald Trump and Health and Human Services Secretary Robert F. Kennedy Jr. were already under fire for the second Make America Healthy Again report. After the first MAHA publication noted concerns regarding pesticides, even naming atrazine, agribusiness lobbyists confronted the administration, and the following document ultimately featured pesticide industry talking points.
The second report's "only mention of pesticides is an Orwellian promise to ensure 'confidence in EPA's robust pesticide review procedures'—procedures courts have repeatedly found unlawful and that frontline communities know cannot be trusted," the Center for Food Safety said after its September release. "Instead, it says that it will speed up pesticide approval and it will 'partner' with the pesticide industry to 'educate' the public about the 'robust review' of EPA's regulation of pesticides to provide the public with 'confidence.'"
Then came the USFWS draft, which Center for Food Safety senior attorney Sylvia Wu said "makes clear that despite the rhetoric of MAHA, there will be no robust review of the dangers of pesticides by the Trump administration... Instead, a toxic poison like atrazine will continue to contaminate our lands and waters, making our children sick for decades to come."
Wu's group has long been critical of atrazine. During the first Trump administration, it was part of a coalition that sued over the Environmental Protection Agency's (EPA) 2020 reapproval of the herbicide. So was the Center for Biological Diversity—which was also angered by the USFWS document, with Donley calling it "an absolute joke."
Donley took aim at the Trump administration again on Friday, after IACR announced its new classification for atrazine.
"Despite its rhetoric to the contrary, there is no better friend of atrazine than the Trump administration," he said. "Hiding behind the rhetoric of MAHA, EPA reapproval of a poison that's likely to keep Americans sick for generations is moving ahead full steam."
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