Carey Gillam

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April 25, 2024

Postcard from California: State emits more of an obscure climate-heating gas than the entire rest of the US

By Bill Walker

Among US states, California is a leader in efforts to cut emissions of the greenhouse gases that fuel the climate crisis. But just three counties in Southern California emit far more of one little-known greenhouse gas than all other US states combined.

Blame termites – and the tragic, too-frequent mistake of replacing one environmentally harmful chemical with another that turns out to be just as bad.

Sulfuryl fluoride is a fumigant pesticide first made by Dow Chemical Co., marketed since 1959 as Vikane. To kill western drywood termites, pest control companies cover infested houses with tents and then pump in Vikane. Houses tented for fumigation are a common sight in Southern California, where warm, dry weather leaves wooden buildings highly susceptible to infestations of the hard-to-exterminate species.

The colorless, odorless, highly neurotoxic gas that kills termites is also a danger to humans. That’s why Vikane must be spiked with another toxic pesticide gas called chloropicrin, which has an intensely irritating smell that is meant to warn people against entering a house until the fumigant has dispersed in 24 to 72 hours.

California Department of Pesticide Regulation (DPR) records show that between 1992 and 2017, at least 16 Californians died from sulfuryl fluoride poisoning after going inside fumigated houses too soon. In the same period DPR recorded more than 200 cases of human exposure that caused breathing problems, dizziness, nausea, and other symptoms.

But the biggest problem with Vikane is that, when fumigation tents are removed and sulfuryl fluoride disperses into the atmosphere, it is a greenhouse gas much more powerful than carbon dioxide (CO2).

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April 18, 2024

Healthy or high risk? New analysis warns of pesticide residues on some fruits and veggies

By Carey Gillam

Several types of fruits and vegetables generally considered to be healthy can contain levels of pesticide residues potentially unsafe for consumption, according to an analysis conducted by Consumer Reports (CR) released on Thursday.

The report, which is based on seven years of data gathered by the US Department of Agriculture (USDA) as part of its annual pesticide residue reporting program, concluded that 20% of 59 different fruit and vegetable categories included in the analysis carried residue levels that posed “significant risks” to consumers of those foods.

Those high-risk foods included bell peppers, blueberries, green beans, potatoes and strawberries, according to CR. The group found that some green beans even had residues of an insecticide called acephate, which has been banned for use on green beans by US regulators since 2011. In one sample from 2022, levels of methamidophos (a breakdown product of acephate), were more
than 100 times the level CR scientists consider safe. In another sample, acephate levels were 7 times higher than CR considers safe.

Overall, out of the nearly 30,000 total fruit and vegetable samples for which CR examined data, about 8% percent were deemed to have residues at “high risk or very high risk”. Imported produce was more likely to carry high levels of pesticide residues than domestically supplied foods, the report said, noting that residue levels can vary widely from sample to sample.

The results “raise red flags,” according to CR. The report advises that children and pregnant women should consume less than a serving a day of high-risk fruits and vegetables, and less than half a serving per day of “very high-risk ones.”

“People need to be concerned because we see that the more data we gather on pesticides, the more we realize the levels that we previously thought to be safe turn out not to be,” said Michael Hansen, a senior scientist at CR who was recently appointed to a USDA food safety advisory committee.

The organization said the “good news” is that the data showed residues in most of the foods sampled, including 16 of 25 fruit categories and 21 of 34 vegetable types, presented “little to worry about.” Nearly all organic samples showed no concerning levels of pesticide residues.

The report suggests consumers “try snap peas instead of green beans, cantaloupe in place of watermelon, cabbage or dark green lettuces for kale, and the occasional sweet potato instead of a white one.”

April 17, 2024

EPA called to address “long-ignored health crisis” in Iowa drinking water

By Carey Gillam

US regulators must take immediate action to address a “long-ignored health crisis” stemming from dangerously contaminated drinking water in Iowa, according to a legal petition filed by environmental and health advocacy groups this week.

The Iowa Environmental Council (IEC) and 12 other organizations are calling for the Environmental Protection Agency (EPA) to take a series of steps to reduce harmful nitrate pollution found in water supplies in Northeast Iowa.

The petition highlights the fact that for many years, nitrate concentrations found in thousands of private wells and some public water sources have exceeded the federal limit of 10 milligrams per liter for drinking water.

State agencies have documented the contamination, but have “failed to do what is needed to correct the pervasive threat to human health,” the petition states.

“For decades, Northeast Iowa residents have been exposed to dangerous levels of nitrate contaminated water,” Food & Water Watch attorney Dani Replogle said in a press release. “As the state reckons with high cancer levels and ongoing pollution regulation rollbacks, federal action is needed to safeguard the right to clean water. EPA must exercise emergency authority to hold polluters accountable and deliver safe drinking water in Iowa.”

Food & Water Watch is among the groups joining IEC in its petition. Others include the Environmental Working Group, the Center for Food Safety, the Environmental Law & Policy Center, and several state organizations.

All signs indicate that “dangerous contamination levels will continue or worsen, absent EPA action,” the petition states.

Farm operations are largely to blame for the contamination, both from the runoff of fertilizer applied to fields of corn and other crops, and the runoff of liquified manure generated by large livestock operations that is also often spread on farm fields. The runoff carries nitrates and phosphorus into surface and groundwaters, and ultimately drinking water.

Iowa is one of the nation’s largest farm states for crops and livestock, and Northeast Iowa is particularly vulnerable to farm pollutants because of its “karst” terrain, which features porous limestone that allows surface pollutants to more quickly move into groundwater. All of the drinking water in the karst region of northeast Iowa depends on groundwater aquifers.

Despite these facts, only a small fraction of private wells are tested regularly for nitrates, which are known to cause health problems at high levels, especially for infants. Cancer is a specific concern with nitrate exposure. Still, more than 1,200 wells in the 12-county karst region tested above the federal threshold for safety from 2016 to 2023, the petition states.

April 15, 2024

“It’s getting worse” – US failing to stem tide of harmful farm pollutants

By Keith Schneider

VENICE, LA. Kindra Arnesen is a 46-year-old commercial fishing boat operator who has spent most of her life among the pelicans and bayous of southern Louisiana, near the juncture where the 2,350-mile-long Mississippi River ends at the Gulf of Mexico.

Clark Porter is a 62-year-old farmer who lives in north-central Iowa where he spends part of his day working as an environmental specialist for the state and the other part raising corn and soybeans on hundreds of acres that his family has owned for over a century.

Though they’ve never met, and live 1,100 miles apart, Arnesen and Porter share a troubling kinship – both of their communities are tied to a deepening water pollution crisis that is fouling the environment and putting public health in peril across multiple US states.

Arnesen’s home lies near an oxygen-depleted expanse of the northern Gulf known as the “dead zone,” where dying algae blooms triggered by contaminants flowing out of the Mississippi River choke off oxygen, suffocating shrimp and other marine life.

Porter’s farm is positioned at the center of the Upper Mississippi River Basin where streams and other surface waters saturated with farm wastes flood into the big river, and contaminated groundwater permeates drinking water wells. Cancer incidence in Iowa is among the nation’s highest, and is rising.

The culprit at the center of it all is a colossal tide of fertilizer and animal manure that runs off fields in Iowa and other farm states to find its way into the Mississippi River. The same agricultural pollution problems are plaguing other iconic US waterways, including Chesapeake Bay and Lake Erie.

US farmers use more fertilizer and spread more manure than in most other countries, accounting for roughly 10% of global fertilizer use, behind China and India. But while the nutrients contained in animal manure and fertilizer are known to nourish crop growth, the resulting nitrogen and phosphorous that end up in waterways are known to create severe health problems for people.

A grand government plan to address the problem has cost taxpayers billions of dollars with minimal results so far, and nowhere is the problem more pronounced than in the Mississippi River Basin.

The reasons for the persistent pollution problem are multi-fold, including strong industry opposition to regulations to control the farm contaminants, and a perverse system in which some government programs incentivize farming practices that add to the pollution even as other government programs try to induce farmers to reduce the pollution.

“You’re talking about systemic dysfunction,” said Matt Liebman, professor emeritus of agronomy and sustainable agriculture at Iowa State University.

April 10, 2024

“A huge victory for public health”: EPA set limits on PFAS toxins in drinking water

By Shannon Kelleher

US regulators on Wednesday put in place the nation’s first legally enforceable limits for levels of six toxic PFAS chemicals in drinking water, saying the moves should prevent thousands of deaths and reduce serious illnesses in people across the country.

The rule is designed to reduce exposure to these per-and polyfluoroalkyl substances (PFAS) – also called “forever chemicals” – for about 100 million people nationwide, according to the US Environmental Protection Agency (EPA). Exposure to PFAS has been linked to “deadly cancers, impacts to the liver and heart, and immune and developmental damage to infants and children, the EPA said.

“Today we can celebrate a huge victory for public health in this country,” Rob Bilott, a lawyer who has become famous for his work against PFAS, said in a statement. Bilott has spent decades pushing for PFAS regulations and to hold PFAS manufacturers accountable for releasing the dangerous chemicals into the marketplace.

“It should never have taken this long to address such serious threats to public health and our environment,” Bilott said, noting that he first alerted the EPA to the presence of PFAS in US drinking water more than twenty-three years ago.

The new rule sets a limit of four parts per trillion (ppt) for two types of PFAS – perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), which are both known to be particularly hazardous.

The EPA acknowledged that there is “no level of exposure to these contaminants without risk of health impacts, including certain cancers,” and said it was setting a “non-enforceable health-based goal,” at zero for PFOA and PFOS.

April 9, 2024

In “crucial step”, EPA finalizes rule to reduce cancerous chemical plant emissions

By Carey Gillam

More than 200 US chemical plants face new requirements that should slash toxic air pollution and reduce cancer risks for hundreds of thousands of people living near the facilities, officials said on Tuesday.

The action formalizes a hotly debated proposal by the Environmental Protection Agency (EPA) to cut out over 6,000 tons of toxic air pollution annually. The agency is taking specific aim at emissions of ethylene oxide (EtO), which is used in the production of many products and for sterilization of medical equipment, and chloroprene, used to make synthetic rubber.

Most of the impact would be seen in plants in Texas and Louisiana, as well as in the Ohio River Valley, in communities that have become notorious for high rates of cancer. People living near a chloroprene plant in St. John the Baptist Parish, Louisiana, face a cancer risk 50 times higher than the national average, for instance. The community has been dubbed “Cancer Alley.”

“This final rule delivers on EPA’s commitment to protecting public health for all, especially communities historically overburdened by pollution,” EPA Administrator Michael Regan said in a press conference.

An EPA analysis shows that once the final rule is implemented, “no one will again face elevated cancer risks from EtO or chloroprene emissions from the equipment and processes covered by this rule,” Regan said. He said agency actions would cut the cancer risk for people living near the plants by 96%.

The move is part of a “government-wide commitment to ending cancer as we know it,” he said.

April 4, 2024

An herbicide so hazardous that courts have banned it twice

By Bill Freese

In early February, something rather extraordinary happened in the world of American farming. For the second time, a federal court banned the hazardous herbicide dicamba, which has been wreaking havoc on farmers, rural communities and the natural world for seven long years. The Environmental Protection Agency (EPA) re-approved dicamba after the first court action. Will it do so once again?

What about dicamba makes it so hazardous that courts have overruled EPA twice? It’s an incredibly volatile, drift-prone weed-killer, and extremely potent as well: just one teaspoon over an acre stunts tomato plants. It vaporizes while being sprayed, but also evaporates from plant surfaces and soil days after a spraying operation. Once the vapor is airborne, it forms clouds that drift long distances to kill or injure virtually any flowering plant in its path.

And that’s precisely what happened following Monsanto’s 2016 introduction of soybeans and cotton genetically engineered (GE) to withstand dicamba’s killing effects. Widespread planting of these new GE crops triggered a dramatic upsurge in use during late spring and summer, when heat enhances dicamba’s volatility.

Dicamba has drifted rampantly from these GE fields, damaging millions of acres of non-dicamba-resistant soybeans. Wave after wave of dicamba vapor drift killed fruit trees, or left them with small, unsaleable fruit. Vegetable farms and gardens were devastated. Trees in natural areas suffered. And beekeepers reported steep drops in honey production where dicamba had devasted the flowering plants their bees require for nectar and pollen.

Echoing many of his colleagues, North Dakota pesticide expert Andrew Thostenson stated: “We are in unprecedented, unchartered territory. We’ve never observed anything on this scale since we’ve been using pesticides in the modern era.”

Vermont Guard responds to flooding in Vermont

April 2, 2024

Vermont advances bill targeting oil and gas companies for climate cleanup

By Dana Drugmand

In the aftermath of costly flooding that swept the US Northeast last year, lawmakers in Vermont on Tuesday advanced a proposed new law that aims to make fossil fuel companies liable for the costs of cleaning up communities battered by climate change-related events.

In a 26-3 vote, the state senate passed what state lawmakers are calling the “Climate Superfund Act.” If the bill becomes law, it would be the first of its kind in the country, imposing strict liability for carbon pollution on large oil and gas companies that produce carbon-based fuels. Like the federal Superfund program that holds polluters liable for hazardous waste contamination, the “climate superfund” concept proposes to replicate this polluter pays program for climate pollution.

“I’m proud to vote yes today to respond to the greatest overarching existential threat of our time,” Vermont Sen. Becca White said following the vote.

The measure now moves on to the Vermont House of Representatives, where support appears strong.

“This is a bill that had a lot of support going into the session,” said Ben Edgerly Walsh, climate and energy program director at Vermont Public Interest Research Group. “We’re pretty optimistic that the House is going to take it up and move it before the end of the session.”

Last July, exceedingly heavy rainfall led to damaging flooding in the US Northeast, submerging streets in Vermont’s capital city of Montpelier, as well as thousands of acres of farmland across the state. One hard-hit farming operation, the Intervale Community Farm in Burlington, Vermont, lost an estimated $200,000 of its vegetable crops when 99% of the farm flooded.

Vermont’s bill would assess a one-time fee on fossil fuel companies responsible for more than 1 billion metric tons of greenhouse gas emissions over the last 30 years. The bill leaves the task of determining which companies would pay, and how much each would owe, to the state’s Agency of Natural Resources and the state treasurer, as well as the task of calculating Vermont’s costs of recovering from and adapting to climate impacts.

April 1, 2024

Mexico delays planned April 1 glyphosate ban

By Carey Gillam and Johnathan Hettinger

After standing firm for more than three years on plans to enact a ban on the weed killer glyphosate starting today, Mexican officials said they were delaying the ban.

Mexico is currently embroiled in a trade dispute with the United States over its unwillingness to accept genetically modified (GM) corn, typically altered to tolerate being sprayed with glyphosate and to manufacture toxins that repel pests, and Mexican officials have repeatedly stated that they consider both GM corn and glyphosate as threats to the health of the Mexican population as well as to the health of the environment.

But in a surprising reversal, less than a week before the ban was to kick in on April 1, government officials announced that glyphosate use could continue until other options for weed control are found. The move came amid reported heavy lobbying from powerful global agrochemical companies and pressure from US trade officials. Similarly, in 2019, Thailand backed down from a planned glyphosate ban after pressure from US officials and industry actors.

Fernando Bejarano, of the Pesticide Action Network in Mexico, said that the move comes after pressure from industry and US officials.

March 26, 2024

When measuring a farm’s carbon footprint – Britain has the right answer

By Dean Dickel

The key to achieving climate mitigation in agriculture depends on an accurate measure of carbon sequestration and emissions of major greenhouse gases such as methane and nitrous oxide.

Mitigation measures so far have revolved around public and private programs that offer payment for practices such as cover crops and no-till planting that industry experts have determined sequester carbon in the soil.

Carbon markets have also been initiated that pay farmers for their conservation practices. Called carbon credits, the payments are used to offset greenhouse gas emissions the buyers produce as a part of their business operations. Those offsets are commonly used to achieve their own climate claims such as “net zero.”

A number of farmers are already participating in these “markets,” but some in the industry remain dubious. “These aren’t markets, they’re just schemes,” says Jeff Schahczenski, an economist with the National Center for Appropriate Technology.

Farmers enrolling in carbon market programs will usually need to sign relatively long-term contracts that include very specific requirements to continue to qualify for payments. “I would advise farmers to have these contracts looked over by a lawyer before signing,” Schahczenski said.

Current “carbon markets” have also drawn fire from organic farmers and others because they mostly reward “new practices” as incentives for farmers to adopt carbon-friendly methods, all the while farmers who are already using those practices, many of them for years, are wondering out loud: “What’s in it for me?” Some have asked how long they would need to go back to bad practices before they would qualify for reinstituting good practices.

Current carbon initiatives available to farmers do not generally consider carbon equivalent emissions for synthetic nitrogen and other fertilizers and pesticides.

In Britain, however, the amount of greenhouse gases such as carbon dioxide and nitrous oxide being emitted and how much carbon is being sequestered in the soil can be measured by a software program that has been in use there for about ten years.