Microplastics are wreaking havoc on human cells

This story was originally published by The Guardian and appears here as part of the Climate Desk collaboration.

Microplastics cause damage to human cells in the laboratory at the levels known to be eaten by people via their food, a study has found.

The harm included cell death and allergic reactions and the research is the first to show this happens at levels relevant to human exposure. However, the health impact on humans is uncertain because it is not known how long microplastics remain in the body before being excreted.

Microplastics pollution has contaminated the entire planet, from the summit of Mount Everest to the deepest oceans. People were already known to consume the tiny particles via food and water as well as breathing them in.

The research analyzed 17 previous studies which looked at the toxicological impacts of microplastics on human cell lines. The scientists compared the level of microplastics at which damage was caused to the cells with the levels consumed by people through contaminated drinking water, seafood and table salt.

They found specific types of harm — cell death, allergic response, and damage to cell walls — were caused by the levels of microplastics that people ingest.

“Harmful effects on cells are in many cases the initiating event for health effects,” said Evangelos Danopoulos of Hull York Medical School, U.K., who led the research published in the Journal of Hazardous Materials. “We should be concerned. Right now, there isn’t really a way to protect ourselves.”

Future research could make it possible to identify the most contaminated foods and avoid them, he said, but the ultimate solution was to stop the loss of plastic waste: “Once the plastic is in the environment, we can’t really get it out.”

Research on the health impact of microplastics is ramping up quickly, Danopoulos said: “It is exploding and for good reason. We are exposed to these particles every day: we’re eating them, we’re inhaling them. And we don’t really know how they react with our bodies once they are in.”

The research also showed irregularly shaped microplastics caused more cell death than spherical ones. This is important for future studies as many microplastics bought for use in laboratory experiments are spherical, and therefore may not be representative of the particles humans ingest.

“We should be concerned. Right now, there isn’t really a way to protect ourselves,” says lead researcher Evangelos Danopoulos of Hull York Medical School, U.K. #PlasticWaste #Health #Microplastics

“This work helps inform where research should be looking to find real-world effects,” said microplastics researcher Steve Allen. “It was interesting that shape was so important to toxicity, as it confirms what many plastic pollution researchers believed would be happening — that pristine spheres used in lab experiments may not be showing the real-world effects.”

Danopoulos said the next step for researchers was to look at studies of microplastic harm in laboratory animals — experiments on human subjects would not be ethical. In March, a study showed tiny plastic particles in the lungs of pregnant rats pass rapidly into the hearts, brains and other organs of their fetuses.

In December, microplastics were revealed in the placentas of unborn babies, which the researchers said was “a matter of great concern.” In October, scientists showed that babies fed formula milk in plastic bottles were swallowing millions of particles a day.

Coastal species are forming colonies on plastic trash in the ocean, study finds

Coastal species are forming colonies on plastic trash in the ocean, study finds

Termed “neopelagic communities”, these colonies are thriving in the Great Pacific Garbage Patch and going where the current flows

Plastic retained in front of an extended cork line put in by The Ocean Cleanup.

Masses of ocean plastic are providing artificial habitat for otherwise coastal species, according to a new study published in the peer-reviewed journal, Nature Communications.

The study’s authors observed floating water bottles, old toothbrushes and matted fishing nets. The possibility exists that species may be evolving to better adapt to life on plastic.

A decade ago, marine researchers believed coastal organisms, which evolved to live along sheltered shorelines, could not survive a trip across the inhospitable open ocean. Yet Japan’s 2011 tsunami, which sent some 300 species of Asian marine life riding durable and buoyant plastic garbage onto North American shores, disproved that assumption.

Now, researchers have a term for these drifters: “neopelagic communities”, seafaring colonies of anemones, brittle stars, shrimp, barnacles and more, which are thriving on plastic in the Great Pacific Garbage Patch and washing up wherever the currents take them.

Ocean plastic is “… creating opportunities for coastal species’ biogeography to greatly expand beyond what we previously thought was possible”, Linsey Haram, a research associate at the Smithsonian Environmental Research Center and coauthor of the study, said in a release.

The concept of organism-encrusted plastic may sound like the story of ocean species triumphing in spite of human folly. But that’s not quite the case, explains Juan José Alava, PhD, an expert in marine ecotoxicology and conservation at the University of British Columbia.

In addition to transporting non-native species to delicate habitats where they may become invasive and destructive, neopelagic communities are “basically an ecological trap” says Alava. That’s because the sheer density of plastic in the ocean (researchers expect 600m metric tons of garbage will collect in the ocean by 2040) leads to the creation of permanent floating structures, covered in small species that attract creatures higher up the food chain, such as fish, turtles and mammals. When these creatures enter garbage gyres seeking shelter and food, they run a high risk of eating and/or becoming caught in plastic and dying. “For example, often the calves of whales, they are very curious – but that curiosity could lead them to get entangled and die,” says Alava.

While scientists have found some types of bacteria are able to break down hydrocarbons in plastic, thereby cleaning up garbage, it’s unlikely that the types of filter-feeding invertebrates thriving in neopelagic communities will have any such effect.

“The 2021 UN report after Cop26 was clear that the scale of rapidly increasing plastic pollution is putting the health of all the world’s oceans and seas at risk,” says Alava.

Chemicals and Toxins in Food Containers

This guide was developed to help provide an overview of chemicals and toxins used in food containers, as well as the related negative health impacts. We provide context and background information to help you understand which chemicals are used, why they are of concern, and how regulations aim to reduce the toxicity of food containers.

See the table of contents below for quick navigation.

Summary of Key Takeaways

  • Food containers include anything that comes into contact with food, such as containers, packaging, and dishes. 
  • Food containers are often made of plastic, which is produced using thousands of chemicals. 
  • Chemicals used in food containers can “migrate” from the plastic into the food.
  • Chemicals used in food containers such as BPA, phthalates and PFAS can cause negative health impacts. More research is needed to study the toxicity of these chemicals and the thousands of other chemicals used in food containers.
  • Some countries and states have implemented regulations to try and combat the use of unsafe chemicals in materials that touch food.

Table of Contents

What are Food Containers?

The definition of food containers is quite broad, and includes anything that comes into contact with food, including containers, packaging, utensils, kitchen equipment and dishes. These materials are known to regulators as food contact materials (FCMs) or food contact substances (FCSs). Food containers may be made of a variety of materials including plastics, rubber, paper and metal.

The majority of food containers use plastics, as they are resistant to water and grease. Plastic is a popular choice for food storage or transport as plastic containers are hygienic, easy to clean (and keep sterile), convenient, and help maintain a food’s shelf life.

Despite the material’s popularity, there is little information on the long-term effects of plastics, plastic coatings, and plasticizers when it comes to our health. Food contact materials, including plastic ones, are made up of thousands of chemicals, although not all of these are toxic. However, greater than 60 percent of the chemicals used in food containers have an unknown toxicity.

Which Chemicals Are Used in Food Containers?

There are thousands of chemicals used in food containers, but there is little information on each substance. Health experts have identified three substances of high concern: bisphenol A (BPA), phthalates, and per- and polyfluoroalkyl substances (PFAS).

Visit this database for a more complete list of Food Contact Chemicals (Groh et al. 2020). The database now includes ~12,000 distinct chemicals used in the manufacture of food contact materials and articles worldwide.

Bisphenol A (BPA) – Bisphenol is a chemical substance that is industrially produced. In fact, BPA is one of the most highly produced chemicals in the world, with over 2 million tonnes being produced worldwide per year.

BPA substance is colorless, and is used primarily to harden plastics. A derivative of BPA is used in epoxy resins. BPA is used in food storage containers such as the inner coatings of food cans, baby bottles, pitchers, tableware, and water bottles. These hard plastics may be identified by the recycling number 7 on the bottom of the product.

Despite BPA’s usefulness, many manufacturers are phasing it out due to health concerns. Most baby bottles made in the United States have not used BPA since 2009.

Phthalates – Phthalates are a class of chemicals known as plasticizers. Phthalates are most commonly added to PVC (polyvinyl chloride) to soften the plastic and increase its flexibility and durability. PVC is the third-most widely produced plastic polymer, with about 40 million tonnes produced per year.

Phthalates are used as plasticizers in PVC food packaging such as clear vinyl packaging or shrink wrap. PVC may also be used to create “blister packaging,” individual plastic pockets, for gum. The use of phthalates is decreasing in food packaging due to health concerns and safety regulations.

Plastics that may contain phthalates may be identified by the recycling number 3 on the bottom of the product.

Per/Polyfluoroalkyl Substances (PFAS) – Per- and polyfluoroalkyl substances, also known as PFAS or “forever chemicals”, are a manmade class of chemicals widely used in a number of applications. After their invention in the 1930s, PFAS became extremely popular due to their ability to repel oil, water, and grease. 

PFAS contain bonds between carbon and fluorine atoms, which is an extremely strong chemical bond that is difficult to break down. Thus, PFAS are often referred to as “forever chemicals” due to their extreme environmental persistence.

PFAS are often used as a treatment to make food containers resistant to grease or water. This includes fiber-based packaging, such as pizza boxes or fast-food containers, as well as nonstick cookware.

The most common PFAS chemicals are perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), which are no longer produced in the U.S. Many manufacturers have replaced these chemicals with other PFAS or other chemicals.

Exposure to Chemicals in Food Containers

The main method by which humans are exposed to chemicals in food containers is through migration of the chemicals into food. Laboratory and real-world studies show that chemicals in packaging materials almost always leach into food, even if it is only small quantities.

A 2020 meta analysis notes that around 1200 peer-reviewed studies demonstrate migration of chemicals from food contact materials into food (Muncke et al., 2020). Thus, food contact materials are a clear pathway for human exposure to chemicals.

The extent of how much migration occurs depends on various factors, including:

  • Characteristics of the packaging (such as thickness and chemistry) 
  • Food temperature
  • Storage time
  • Size of the packaging surface in contact with food

Studies do not exist for many of the thousands of chemicals used in food contact materials. Not only is it difficult to obtain information about chemicals used in food contact materials, including the amounts used, but there is also very little information about these chemicals’ ability to migrate into food and expose humans. This lack of information extends to the impacts on human health, as many of these chemicals also have little to no hazard testing performed.

BPA, Phthalates, and PFAS Leaching

BPA, Phthalates and PFAS are among the most researched food contact chemicals as they are both widely used and they are of health concern. 

A 2017 study showed that PFAS in grease-resistant food packaging can leach into food and increase dietary exposure. This conclusion was reached after studying around 400 samples of food contact papers, cardboard containers, and beverage containers from fast-food restaurants (Schaider et al., 2017).  

PFAS can be found in multiple types of packaging
Source: Schaider et al. 2017

Multiple studies show the presence of BPA, phthalates or PFAS chemicals in the human body as a result of exposure through food contact materials. A 2011 study from the Silent Spring Institute showed that BPA and bis(2-ethylhexyl) phthalate (also known as DEHP) can be detected in people, but that the levels of these chemicals in the human body are significantly reduced when diets are restricted to limited packaging (i.e. when exposure to food contact materials is decreased) (Rudel et al., 2011). Exposure to BPA is heightened when packaging containing BPA is heated.

It has also been shown that PFAS levels are higher in people who have recently eaten food from a fast food, pizza or other restaurant, or who have eaten popcorn from microwaveable bags (Susmann et al., 2019).
Exposure to these chemicals is widespread; a 2003-2004 National Health and Nutrition Examination Survey conducted by the CDC found detectable levels of BPA in 93% of over 2500 urine samples from people ages six and up. The same study found that measurable levels of phthalate metabolites are common in the general U.S. population.

Health Impacts of Chemicals in Food Containers

Chemicals from food containers can have serious impacts on human health.  In addition to being known hormone disruptors, BPA, phthalates, and PFAS may cause disease and other health issues.

Chemicals in food containers act as endocrine disruptors
Chemicals in food containers act as hormone disruptors.
Source: NIEHS

BPA – The toxicity of BPA remains controversial, as some studies show negative health impacts while others do not. To date, the US FDA considers bisphenol A (BPA) to be safe as a food contact material. 

However, some research shows that BPA is an endocrine-disrupting chemical (EDC), and toxic for reproduction. It causes developmental effects in laboratory animals. Some human studies indicate BPA exposure is related to health effects like diabetes or heart disease. 

Phthalates – The human health effects of phthalates are also subject to some debate. Some studies show that phthalates act as endocrine disruptors and affect reproduction. However, more research is needed on the effects of phthalates on humans.

One study estimated phthalate exposures are associated with around 100,000 American deaths per year, but a direct causal link is not yet proven (Trasande et al., 2021).

PFAS – PFAS are particularly dangerous because they are very slow to break down and can bioaccumulate in the environment or the human body over time. Peer-reviewed studies have shown that exposure to PFAS (particularly at high levels) can cause serious health effects.

PFOA and PFOS in particular are known to cause reproductive and developmental, liver and kidney, and immunological effects in lab animals, as well as tumors. In humans, they cause increased cholesterol levels, low infant birth weights, effects on the immune system, cancer (PFOA), and thyroid hormone disruption (PFOS).

Part of the difficulty of determining the health impacts of PFAS is that there are thousands of different PFAS chemicals that may have varying uses, exposure pathways, and toxicities. Additionally, people may be affected by PFAS differently at different times in their lives.

Learn more about ongoing PFAS research and get other government resources from the U.S. Environmental Protection Agency website.

Toxicity of Food Contact Chemicals: An Ongoing Question

The true extent of health impacts caused by food contact materials are still unknown. While many nations regulate food contact materials because the risk of migration of chemicals into food is recognized, the vast majority of approved food contact materials have been inadequately studied or have unknown toxicities. 

Additionally, many studies showing negative impacts of food contact chemicals have been performed only on laboratory animals, and must be confirmed in humans. 

Environmental Impacts of Chemicals in Food Containers

While chemical leaching through food containers is one of the most direct exposure routes for humans, BPA, phthalates, PFAS and other chemicals typically used in food containers are found in the environment as well.

Chemicals in containers can enter the environment:

  • Directly through manufacturing of plastics
  • Indirectly through disposal of chemical-containing materials

While containers and packaging make up a large percentage of waste produced in the U.S., very little is recycled (EPA Report about Materials, Waste, and Recycling). For example, in 2018, over 14,000  tons of plastic packaging were produced, and 10,090 of those tons went to landfill. Less than ⅓ was recycled.  

When plastics are put into landfill rather than properly recycled, BPA and other chemicals can leach out into the environment over time. Chemical leaching into water or soil can have severe impacts on the environment as well as on humans. Drinking chemical-contaminated water can introduce chemicals into the human body, as can eating food grown in contaminated soil. Industrial chemicals in water also impact wildlife, causing developmental and reproductive problems.

Food Contact Materials Regulations

In the U.S., chemicals must prove toxicity above certain thresholds to be disapproved by the Food and Drug Administration (FDA). Most PFAS, BPA, and phthalates remain legally approved for use in food contact materials, as the FDA does not have sufficient evidence of their toxicity.

The FDA’s Food Contact Notification (FCN) Program allows for industry registration of new food contact materials, with a defined package of supporting safety information (toxicological, chemical, and environmental). After a 120-day time period to raise objections, the packaging materials are automatically legally approved.

However, the U.S. Environmental Protection Agency (EPA) has announced a comprehensive national strategy to confront PFAS pollution, and some US States have their own stricter regulations. For example, Washington has banned PFAS in food packaging and California’s Proposition 65 requires warning labels on containers containing BPA due to the chemical’s harm to the female reproductive system.

Some countries are choosing to exercise caution and seek alternatives to these chemicals in food contact materials. BPA is banned in France and PFAS is banned in food packaging in Denmark. Canada is taking steps to ban BPA in baby bottles, although they acknowledge this is a precautionary level, as studies do not indicate exposure levels that cause health effects.

The European Union has no specific legislation and instead, has general legislation that leaves it up to manufacturers to ensure that food contact materials “do not transfer their constituents to food in quantities which could endanger human health” (EU Framework Regulation).

Why is Regulation Difficult?

Lack of Information – Part of the difficulty in banning these substances is that extensive research is required to assess the health and environmental impacts of large numbers of individual chemicals; the chemical class of PFAS alone comprises thousands of chemicals. Therefore, only a few PFAS are banned. 

Controversy Over Toxicity Levels – Additionally, U.S. regulations are based on the amount of chemical believed to be ingested as a result of different food packaging, and how toxic this amount is believed to be. However, there is controversy about how much chemical is 1) dangerous to ingest and 2) is ingested by the average American, and some scientists believe the U.S. determinations of toxicity are too narrow.

Scientists propose that PFAS be managed as a chemical class to move towards eliminating their non-essential uses, developing safer alternatives, and developing methods to remove existing PFAS from the environment. (Kwiatkowski et al., 2020).

The EU and other countries are currently compiling research on chemicals in food contact materials intended to support legislation protecting public health. Read more about the European Food Safety Authority’s research efforts.

More Resources

Podcasts

  • You Make Me Sick – This episode of the Environmental Defense Fund’s Health podcast talks with Dr. Ami Zota about the presence of food packaging chemicals in people’s urine after eating fast food.
  • The Joe Rogan Experience Episode #1638 – This episode with Dr. Shanna Swan discusses research showing declining fertility rates in the U.S. due to chemical exposure.
  • Health in a Heartbeat  – This UFHealth podcast discusses the dangers of phthalates in plastics.

Books

  • Our Daily Poison: From Pesticides to Packaging, How Chemicals Have Contaminated the Food Chain and Are Making Us Sick by Marie-Monique Robin (Kirkus Reviews)
  • Count Down: How Our Modern World Is Altering Male and Female Reproductive Development, Threatening Sperm Counts, and Imperiling the Future of the Human Race by Shanna H. Swan with Stacey Colino (NYTimes Review).

Databases and Other Helpful Information

Sources

CDC. Phthalates Factsheet. https://www.cdc.gov/biomonitoring/Phthalates_FactSheet.html 

ChemTrust. Chemicals in Food Contact Materials. https://chemtrust.org/food-contact-materials/

EPA Press Office. (2021, October 18). Comprehensive National Strategy to Confront PFAS Pollution. https://www.epa.gov/newsreleases/epa-administrator-regan-announces-comprehensive-national-strategy-confront-pfas

Everts, S. (2009, August 31). Chemicals Leach From Packaging. American Chemical Society. https://cen.acs.org/articles/87/i35/Chemicals-Leach-Packaging.html 

Groh, K. J., Backhaus, T., Carney-Almroth, B., Geueke, B., Inostroza, P. A., Lennquist, A., … & Muncke, J. (2019). Overview of known plastic packaging-associated chemicals and their hazards. Science of the total environment, 651, 3253-3268. https://www.sciencedirect.com/science/article/pii/S0048969718338828 

Irvine, A. (2018, January 16). A Beginner’s Guide to FDA Food Contact Materials Regulations. FoodSafety Magazine. https://www.food-safety.com/articles/201-a-beginners-guide-to-fda-food-contact-materials-regulations

Kwiatkowski, C. F., Andrews, D. Q., Birnbaum, L. S., Bruton, T. A., DeWitt, J. C., Knappe, D. R., … & Blum, A. (2020). Scientific basis for managing PFAS as a chemical class. Environmental Science & Technology Letters, 7(8), 532-543. https://pubs.acs.org/doi/full/10.1021/acs.estlett.0c00255 

Muncke, J. (2013, April 22). Migration. Food Packaging Forum. https://www.foodpackagingforum.org/food-packaging-health/migration 

Muncke, J., Andersson, A. M., Backhaus, T., Boucher, J. M., Almroth, B. C., Castillo, A. C., … & Scheringer, M. (2020). Impacts of food contact chemicals on human health: a consensus statement. Environmental Health, 19(1), 1-12. https://ehjournal.biomedcentral.com/articles/10.1186/s12940-020-0572-5 

NIEHS. Bisphenol A (BPA). https://www.niehs.nih.gov/health/topics/agents/sya-bpa/index.cfm

NY State Dept. of Health. Bisphenol A. https://www.health.ny.gov/environmental/chemicals/bisphenol_a/ 

Rand, A. A., & Mabury, S. A. (2011). Perfluorinated carboxylic acids in directly fluorinated high-density polyethylene material. Environmental science & technology, 45(19), 8053-8059. https://pubs.acs.org/doi/10.1021/es1043968

Rudel, R. A., Gray, J. M., Engel, C. L., Rawsthorne, T. W., Dodson, R. E., Ackerman, J. M., … & Brody, J. G. (2011). Food packaging and bisphenol A and bis (2-ethyhexyl) phthalate exposure: findings from a dietary intervention. Environmental health perspectives, 119(7), 914-920. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3223004/

Schaider, L. A., Balan, S. A., Blum, A., Andrews, D. Q., Strynar, M. J., Dickinson, M. E., … & Peaslee, G. F. (2017). Fluorinated compounds in US fast-food packaging. Environmental science & technology letters, 4(3), 105-111. https://pubs.acs.org/doi/abs/10.1021/acs.estlett.6b00435

Silent Spring Institute. Food packaging. https://silentspring.org/project/food-packaging

Susmann, H. P., Schaider, L. A., Rodgers, K. M., & Rudel, R. A. (2019). Dietary habits related to food packaging and population exposure to PFASs. Environmental health perspectives, 127(10), 107003. https://ehp.niehs.nih.gov/doi/10.1289/EHP4092

Toxins in Packaging Clearinghouse. https://toxicsinpackaging.org/

Trasande, L. (2018, July 23). Some food additives raise safety concerns for child health; AAP offers guidance. American Academic of Pediatrics. https://www.aappublications.org/news/2018/07/23/additives072318

Trasande, L., Liu, B., & Bao, W. (2021). Phthalates and attributable mortality: A population-based longitudinal cohort study and cost analysis. Environmental Pollution, 118021. https://www.sciencedirect.com/science/article/abs/pii/S0269749121016031 

US Dept. of Labor. Occupational Safety and Health Administration. Styrene. https://www.osha.gov/styrene 

US EPA. Basic Information on PFAS. https://www.epa.gov/pfas/basic-information-pfas

US EPA. Per- and Polyfluoroalkyl Substances (PFAS) in Pesticide Packaging. https://www.epa.gov/pesticides/pfas-packaging

US FDA. Bisphenol A (BPA). https://www.fda.gov/food/food-additives-petitions/bisphenol-bpa

US FDA. Packaging & Food Contact Substances (FCS). https://www.fda.gov/food/food-ingredients-packaging/packaging-food-contact-substances-fcs

US FDA. Phthalates. https://www.fda.gov/cosmetics/cosmetic-ingredients/phthalates

Zimmermann, L., Dierkes, G., Ternes, T. A., Völker, C., & Wagner, M. (2019). Benchmarking the in vitro toxicity and chemical composition of plastic consumer products. Environmental science & technology, 53(19), 11467-11477. https://pubs.acs.org/doi/10.1021/acs.est.9b02293 

EPA-linked consultant undercuts agency's PFAS concerns

An industry toxicologist promoting artificial turf fields has repeatedly cited her work for EPA while downplaying the risks of “forever chemicals” used to produce plastic grass blades, making contentious claims often at odds with the agency’s own findings.

Laura C. Green has often referenced her role as an EPA special government employee while advocating for artificial turf fields in New England.

In public meetings and written emails, Green has also sought to undercut concerns about the health risks of per- and polyfluoroalkyl substances known as PFAS. That includes comments made at a September meeting on Nantucket, where Green asserted, “There is no reliable evidence that PFAS harms human health.”

EPA has in fact recently targeted some PFAS for regulation due to a mounting body of evidence of negative health effects. Just last month, the agency singled out a compound called PFOA as a “likely carcinogen,” in addition to noting the chemical’s links to lower immune response and other health risks (E&E News PM, Nov. 16).

When E&E News asked about Green’s statements, EPA disavowed them.

“EPA considers harmful PFAS to be an urgent public health threat facing communities across the United States,” a spokesperson said. “The agency does not support or agree with any of the statements attributed to Ms. Green that you cited in your questions.”

EPA also said Green “has not ever” worked on PFAS issues for the agency. Rather, she has assisted with peer reviews conducted by the agency’s Scientific Advisory Committee on Chemicals and the Federal Insecticide, Fungicide and Rodenticide Act Scientific Advisory Panel. Green “was not conducting work” for those panels when she made her comments about PFAS to New England communities this fall, the agency said.

Just days after its response to E&E News, EPA ethics officials emailed Green to “clarify” how she references her work for the agency in public settings.

The term “special government employee” refers to a temporary service in which workers are recruited for their expertise to serve as consultants or on advisory committees, but cannot work more than 130 days of the year for the government.

In the email, a copy of which was obtained by E&E News, EPA Office of Chemical Safety and Pollution Prevention Deputy Ethics Official Hayley Hughes told Green that if she mentioned her EPA work at public meetings, she had to clarify she was only speaking in her personal capacity and not representing the agency.

Hughes also wrote that Green “may not” use her work for EPA “to bolster your personal presentation or specific points contained in any remarks, or imply that the EPA or the federal government endorses your personal views.”

Green did not respond to questions from E&E News about her role with EPA or the agency’s correspondence with her about it. However, she said she stood by her comments that there is no reliable evidence that PFAS harms human health. That statement, she said, is “not inconsistent” with EPA’s finding that PFOA is a likely human carcinogen. Green said the agency’s declaration only “means that there is reliable evidence in rats and mice,” though such studies are routinely used to consider chemicals’ health impacts.

She also said that if there was evidence that PFAS harmed humans, specifically, EPA would have already regulated them in drinking water.

“Why do you think they never came up with drinking water standards?” she said.

Green herself has pushed back on proposed standards for multiple PFAS at the state level. In comments to Massachusetts and Wisconsin regulators, she and colleague Edmund Crouch countered findings related to PFOA and PFOS specifically and argued against the standards being recommended.

Green, a board-certified toxicologist, holds a bachelor’s degree in chemistry and a doctorate from the Massachusetts Institute of Technology, where her focus was nutrition, according to her resume. That document also shows how extensively she has worked with industry, dating back decades.

Meanwhile, Green has often made controversial statements about the health of workers at DuPont and 3M who were exposed to PFAS.

Surveys of workers at PFAS manufacturing plants owned by DuPont and 3M exposed to PFOA have shown increased incidents of liver damage and testicular cancer for decades. But Green told attendees of the September School Committee meeting on Nantucket that workers who manufacture PFAS for the two companies “seem to be fine.”

“There doesn’t seem to be any evidence that workers who are up to their eyeballs in this stuff are actually harmed by it,” Green said.

She has repeated those assertions in writing.

In emails to Nantucket resident Ayesha Khan, whose firefighter husband blames his testicular cancer on PFAS exposure at work, Green compared levels in firefighters’ blood to those found in workers at PFAS manufacturing plants. She again repeated that workers “who were literally up to their elbows in these materials … do not appear to be at excess risk of cancer.”

Green emailed Khan several more times, blaming her husband’s diagnosis on other chemicals firefighters are exposed to, and sending her studies about testicular cancer survival rates.

“It was shocking,” Khan said.

In another email to Emma Green-Beach, director and biologist of the Martha’s Vineyard Shellfish Group, who is also now on the Oak Bluffs, Mass., select board, Green cited the now-infamous environmental crisis in West Virginia, where PFOA contamination led to the largest PFAS human health study to date. Popularized in the movie “Dark Waters,” the contamination was discovered after a local farmer drew attention to his tumorous, dead cows.

In her email, Green theorized without evidence that the cows in question were likely stricken, not by PFAS exposure, but by molybdenum-based catalysts used in the manufacturing of Teflon products.

Turf wars

Despite making demonstrably false statements about PFAS, Green continues to consult on issues related to multimillion-dollar artificial turf fields at multiple towns in Massachusetts, New Hampshire and Vermont.

Public Employees for Environmental Responsibility Executive Director Tim Whitehouse, whose group has been tracking Green’s work, said her repeated assertion that she works for EPA is alarming because of the misinformation she spreads about the safety of PFAS.

“She has been at this for a while, mixing her position as a special government employee with her private work, and that is concerning,” he said.

Public officials in multiple towns that have hired Green did not respond to requests for comment. Nantucket Public Schools officials had agreed to speak with E&E News about the turf fields yesterday morning but canceled the virtual meeting at the last minute without giving a reason. E&E News later learned that the officials found out about EPA’s emails to Green shortly before the scheduled meeting. The officials did not respond to subsequent emails posing questions.

But Nantucket project architect Richard Webb has told the School Committee that he is “aware of the PFAS concerns and considerations” and that the products would be tested for PFAS regulated in Massachusetts drinking water, including PFOA.

In his presentation, Webb said using synthetic turf for the $17.5 million project is necessary because, in the turf’s 12- to 15-year life span, it would require less maintenance than grass fields and would help increase participation in school sports.

Notably, the chemicals used in artificial turf fields are not the same compounds EPA is currently considering regulating.

PFAS are a family of chemicals containing thousands of compounds, many of which are not yet well researched or understood. The most studied chemicals are PFOA and PFOS, which have been linked to kidney and liver problems, among other issues. Those compounds are both toxic to humans at very low levels and stay in human bodies for an extended period of time, making them particularly concerning to public health experts.

As more research accumulates about other compounds, some have been found to have similar health effects as PFOA and PFOS, prompting advocates to call on EPA to regulate all PFAS as a class, rather than individually.

PFAS are used to manufacture turf fields, specifically by preventing plastic blades of grass from sticking to equipment when they are shaped. Green has said publicly that the specific compounds PVDF and PVDF-HFP are used in this process but told E&E News it was only the latter.

As with many PFAS, health effects from PVDF and PVDF-HFP are not widely documented. In public presentations and conversations with E&E News, Green has said PVDF-HFP is an “inert polymer” and does not rub off on athletes, break down in the environment or break down into other types of PFAS.

But one October 2020 study examining fluoropolymers, including PVDF, stated that while those compounds are often deemed “polymers of low concern,” many questions remain about their environmental impacts and health implications. More recent research has shown PVDF has the potential to break down in the presence of prolonged exposure to ultraviolet rays — which could be a concern for turf fields exposed to the elements. It is unclear whether the same is true of PVDF-HFP.

Kristen Mello, a trained chemist and community activist from Westfield, Mass., who has elevated PFAS levels in her blood, said the studies show that PVDF does break down in sunlight.

“[Green] is saying that the PFAS they use is insoluble and can’t come off in water, and the question we are left with is, what does it come off in?” she said. “Once it is exposed to sunlight, the backbone of the compound is broken down into pieces that can more readily be soluble in water.”

Asked about this research, Green stood by her previous comments and told E&E News that PVDF-HFP is a stable compound that does not dissolve in water. Green also suggested that because the chemical is used in surgical sutures and medical devices that have been approved by the Food and Drug Administration, it is safe to use on synthetic fields. When E&E News reporters pointed out that sutures on a body would not be subjected to the same conditions as an athletic field, Green replied, “What you are saying makes no sense to me.”

“That’s just not a thing, my friend,” she said.

Jamie DeWitt, a toxicologist with East Carolina University who studies PFAS and polymers, said concerns about how wear and tear might affect the chemicals’ ability to escape artificial turf fields and contaminate athletes or nearby water supplies are legitimate.

“If there is residual PFAS on the turf grass product, and then across time there is sunlight, and heat from the sunlight, and rain and microbes and physical activity, it seems perfectly reasonable and logical,” she said, “that those residual PFAS will slowly disincorporate from the turf and reincorporate either in the water, in the soil or on the bodies of the people using the turf.”

‘There is nothing to see here’

On Nantucket and Martha’s Vineyard, much of the opposition to artificial turf fields stems from concerns about possible contamination of their sole-source aquifers. The islands already have preexisting PFAS contamination, and Nantucket is part of a class-action lawsuit against firefighting foam manufacturers.

Ewell Hopkins, chair of the Oak Bluffs Planning Board on Martha’s Vineyard currently reviewing permit applications for the fields, worries Green’s experience with EPA helps community members supporting the fields ignore groundwater fears.

“Bringing in a smooth-talking, seemingly credentialed person saying, ‘There is nothing to see here,’ the people who want to feel good about supporting the field have something to stand on,” he said.

Hopkins added that his board’s review process is ongoing and far from over. During a meeting in Portsmouth, N.H., Green alluded to $30,000 for testing for “the synthetic turf being used in Martha’s Vineyard.” At the meeting, Green said the results were not of concern to the Martha’s Vineyard Commission, which has already approved the project, but did not mention that Oak Bluffs regulators continue to scrutinize those results.

The comments concerned Hopkins, who has since written to Portsmouth’s mayor over the matter. He is worried that Green is trying to capitalize on Martha’s Vineyard’s reputation in order to convince other communities not to scrutinize turf fields.

“Everyone knows Martha’s Vineyard as the playground of presidents,” he said, adding, “The last thing I want is for people in other communities with less resources to think that if it was good enough for the Vineyard, who are we to question it for our students.”

Nantucket Fire Department Deputy Chief Sean Mitchell shared similar fears. Two years ago, he learned that protective uniforms meant to keep firefighters safe from burns and toxic chemicals actually contain PFAS. For the past 18 months, he has written to turnout gear manufacturers inquiring about safety concerns only to encounter similar misinformation (Greenwire, Feb. 17).

This winter, he sent an email to Nantucket school officials criticizing them for using taxpayer money to hire Green “to gaslight” the community.

“We have come to expect this from industry-funded scientists,” Mitchell wrote. “What we don’t expect is that our own school system would be the reason she’s here in our community, spreading her misinformation.”

Reporter Kevin Bogardus contributed.

5 environmental victories from 2021 that offer hope

It’s easy to feel despondent about the state of the global environment in 2021. More than a million species are at risk of extinction, levels of carbon dioxide in the atmosphere continue to increase, and the planet was rocked by a series of climate change-fueled extreme weather events. Meanwhile, the world continues to grapple with a deadly pandemic that seems like it will never end.

But, as the year draws to a close, there are reasons to feel cautiously optimistic about areas in which the environment scored victories in 2021.

It’s important to note that even these promising developments involve pledges that may yet be watered down, misleading, or altogether unfulfilled. Still, there are signs of success on this long, difficult road. Here are five reasons to be hopeful.

1. Pushback on fossil fuels

Delayed by a year as a result of COVID-19, November’s COP26—the United Nations Climate Change Conference, held in Glasgow—welcomed the world’s second-largest fossil-fuel emitter, the United States, back to the negotiating table after four years of inaction on climate change. By the summit’s end, the U.S. and China had made a surprise joint declaration to work together on meeting the goals of the Paris Agreement.

While the level of ambition at Glasgow faced plenty of criticism, particularly in terms of protecting developing countries from climate impacts and supporting their transitions to clean energy systems, the goal of keeping warming to 2.7°F (1.5°C) is arguably more achievable now. Notably, countries agreed to “phase down” their coal use—which fell short of an initial draft to “phase out” coal—and more than a hundred countries agreed to cut their methane emissions 30 percent by 2030.

Away from Glasgow, the Biden administration canceled the controversial Keystone XL pipeline and suspended oil drilling leases in the Arctic National Wildlife Refuge, though it is also opening up millions of acres to oil and gas exploration. The administration set a goal of generating 30 gigawatts of offshore wind by 2030 and announced its intention to reduce solar energy costs 60 percent over the next decade; the two declarations are part of a plan to have the U.S. powered by a clean grid by 2035. In addition, President Joe Biden in August mandated that by 2030, half of all new vehicles sold in the U.S. be electric.

Globally, renewable energy use in 2021 is expected to increase by 8 percent, the fastest year-on-year-growth since the 1970s, while in the U.S., a new report found that it had nearly quadrupled over the last decade.

In the Netherlands, a court ordered Royal Dutch Shell to reduce its carbon emissions by 45 percent relative to 2019 levels by 2030, a result one lawyer described as a “turning point in history.”

2. Progress on plastic

The last 12 months saw a raft of legislation to reduce growing plastic pollution. In Washington State, Governor Jay Inslee signed a law that bans polystyrene products, such as foam coolers and packing peanuts; requires that customers must request single-use utensils, straws, cup lids, and condiments; and mandates minimum post-consumer recycled content in a number of plastic bottles and jugs, including those for personal care products and household cleaning.

California passed landmark bills that, among other things, prohibit manufacturers from placing the “chasing arrows” recycling symbol or the word recyclable on items that aren’t actually recyclable; forbid mixed plastic waste exports to other countries being counted as “recycled,” just so that local governments can claim to comply with state laws; require products labeled as compostable to break down in real-life conditions; and ban the use of extremely long-lasting PFAs, known as forever chemicals, in children’s products.

Such actions may be reflected federally following the introduction of the Break Free from Plastic Pollution Act; among other things, the proposal by two U.S. lawmakers would ban some single-use plastic products and pause permits of new plastics manufacturing plants.

In November, U.S. Secretary of State Anthony Blinken announced that the U.S. would back a global treaty to tackle plastic pollution; the Trump administration opposed it. U.S. support is critical, given that the nation is the world’s largest contributor to plastic waste, as revealed in a congressionally mandated report released in December. The treaty now seems certain to move forward, and the United Nations is scheduled to convene in Nairobi in February to begin formal negotiations.

In December, the National Academies of Sciences urged the U.S., which generates more plastic waste than all the European Union states combined, to develop a strategy to reduce it, including a national cap on virgin plastic production.

3. Protection of forests

By far the biggest news in forest conservation was the pledge at the UN Climate Conference in Glasgow to end deforestation by 2030; the commitment includes a pledge to provide $12 billion in funding to “help unleash the potential of forests and sustainable land use.” However, the promise was met with widespread skepticism, not least because deforestation rates actually increased following a 2014 agreement with the same goal.

However, 2021 did see a number of on-the-ground victories. In October, President Felix Tshisekedi of the Democratic Republic of Congo called for an audit of its vast forest concessions and the suspension of all “questionable contracts” until the audit is done. A few weeks later, the government retreated from a plan to lift a 19-year-old moratorium on the granting of new logging licenses in the Congo Basin Forest. “We don’t want any more contracts with partners who came to savagely cut our forests; we will retire these types of contracts,” said Environment Minister Eve Bazaiba. Environmental groups remain wary, and Greenpeace is calling for the DRC moratorium to be made permanent.

The government of the Indonesian province of West Papua revoked permits for 12 palm oil contracts covering more than 660,000 acres (an area twice the size of Los Angeles), three-fifths of which remains forested. Environmental and Indigenous rights groups are urging the government to go further and recognize the rights of Native peoples in those areas to manage the forests themselves. Three of the 12 contract holders continue to fight the government’s decision in court.

And Ecuador’s highest court has ruled that plans to mine for copper and gold in a protected cloud forest would harm its biodiversity and violate the rights of nature, which are enshrined in the Ecuadorian constitution. The ruling means that mining concessions, and environmental and water permits in the forest, must be cancelled.

4. Restoration of habitats

The Biden administration spent part of its first year restoring habitat protections that had been rolled back by its predecessor. Perhaps the most prominent was the re-establishment of full protection for the Bears Ears and Grand Staircase-Escalante monuments in southern Utah, as well as the Northeast Canyons and Seamounts National Monument off New England.

The administration restored protection to more than 3 million acres of old-growth forest in the Pacific Northwest that is critical habitat for the northern spotted owl. It also reversed an effort to weaken the Migratory Bird Treaty that the Trump White House set in motion in its last few days in office. Meanwhile, a court overturned a Trump administration decision to strip protections from 10 million acres, mostly in Nevada and Idaho, to allow mining in critical habitat for greater sage-grouse.

In May, the Biden administration unveiled its America the Beautiful initiative, which among other things established the first-ever national conservation goal: conserving 30 percent of U.S. lands and waters by 2030. It reflects a United Nations aim to protect the same percentage of land and ocean, an objective to which more than 100 nations committed in September.

In November, Colombia pledged to protect 30 percent of its land by 2022. And Panama took major steps toward the same goal by tripling the size of its Cordillera de Coiba Marine Protected Area. Also in November, Portugal established the largest fully protected marine reserve in Europe.

5. Support for wildlife

Populations of some of the world’s most iconic species are showing some improvement as a result of protective measures. In July, China announced that it no longer considers the giant panda, the symbol of the World Wildlife Fund, to be endangered, upgrading its status to vulnerable. Just over 1,800 pandas remain in the wild, an improvement over the 1,100 thought to live in the wild as recently as 2000. Meanwhile, China announced the creation of the Giant Panda National Park, part of a system of new parks that will cover an area nearly the size of the United Kingdom.  The parks are designed to protect native species such as the Northeast China tiger, Siberian leopard, and the Hainan black-crested gibbon.

Humpback whales, whose haunting songs helped build support for the “Save the Whales” campaign that ushered in the modern environmental movement, are increasing in number in many parts of their range, including off Australia (where the government is considering removing them from the country’s threatened list) and in their South Atlantic feeding grounds. That said, the number of calves in the Northwest Atlantic population has declined over the last 15 years.

Several species of tuna are no longer heading toward extinction, according to the International Union for Conservation of Nature. Two bluefin species, a yellowfin, and an albacore are no longer classified as critically endangered or have moved off the leading international list of endangered species entirely, the result of decades of efforts to limit the impacts of commercial fishing.

Three thousand years after the species was eliminated everywhere except its eponymous island, seven Tasmanian devils were born in a reserve in mainland Australia. Scientists hope that if the marsupials one day again become established on the mainland, they could play a vital role in controlling invasive species.

And in the U.K., a government report concluded that lobsters, crabs, and octopuses are sentient beings that feel pain, and as a result should be granted protection under the country’s draft Animal Welfare (Sentience) Bill.  

Microplastics cause damage to human cells, study shows

Microplastics cause damage to human cells, study shows

Harm included cell death and occurred at levels of plastic eaten by people via their food

Plastic waste in Rize, Turkey.

Microplastics cause damage to human cells in the laboratory at the levels known to be eaten by people via their food, a study has found.

The harm included cell death and allergic reactions and the research is the first to show this happens at levels relevant to human exposure. However, the health impact to the human body is uncertain because it is not known how long microplastics remain in the body before being excreted.

Microplastics pollution has contaminated the entire planet, from the summit of Mount Everest to the deepest oceans. People were already known to consume the tiny particles via food and water as well as breathing them in.

The research analysed 17 previous studies which looked at the toxicological impacts of microplastics on human cell lines. The scientists compared the level of microplastics at which damage was caused to the cells with the levels consumed by people through contaminated drinking water, seafood and table salt.

They found specific types of harm – cell death, allergic response, and damage to cell walls – were caused by the levels of microplastics that people ingest.

“Harmful effects on cells are in many cases the initiating event for health effects,” said Evangelos Danopoulos, of Hull York Medical School, UK, and who led the research published in the Journal of Hazardous Materials. “We should be concerned. Right now, there isn’t really a way to protect ourselves.”

Future research could make it possible to identify the most contaminated foods and avoid them, he said, but the ultimate solution was to stop the loss of plastic waste: “Once the plastic is in the environment, we can’t really get it out.”

Research on the health impact of microplastics is ramping up quickly, Danopoulos said: “It is exploding and for good reason. We are exposed to these particles every day: we’re eating them, we’re inhaling them. And we don’t really know how they react with our bodies once they are in.”

The research also showed irregularly shaped microplastics caused more cell death than spherical ones. This is important for future studies as many microplastics bought for use in laboratory experiments are spherical, and therefore may not be representative of the particles humans ingest.

“This work helps inform where research should be looking to find real-world effects,” said microplastics researcher Steve Allen. “It was interesting that shape was so important to toxicity, as it confirms what many plastic pollution researchers believed would be happening – that pristine spheres used in lab experiments may not be showing the real-world effects.”

Danopoulos said the next step for researchers was to look at studies of microplastic harm in laboratory animals – experiments on human subjects would not be ethical. In March, a study showed tiny plastic particles in the lungs of pregnant rats pass rapidly into the hearts, brains and other organs of their foetuses.

In December, microplastics were revealed in the placentas of unborn babies, which the researchers said was “a matter of great concern”. In October, scientists showed that babies fed formula milk in plastic bottles were swallowing millions of particles a day.

‘Disastrous’ plastic use in farming threatens food safety – UN

‘Disastrous’ plastic use in farming threatens food safety – UN

Food and Agriculture Organization says most plastics are burned, buried or lost after use

Farmers cover a field with plastic films in Yuli county, Xinjiang Uygur Autonomous Region, northern China.

The “disastrous” way in which plastic is used in farming across the world is threatening food safety and potentially human health, according to a report from the UN’s Food and Agriculture Organization.

It says soils contain more microplastic pollution than the oceans and that there is “irrefutable” evidence of the need for better management of the millions of tonnes of plastics used in the food and farming system each year.

The report recognises the benefits of plastic in producing and protecting food, from irrigation and silage bags to fishing gear and tree guards. But the FAO said the use of plastics had become pervasive and that most were currently single-use and were buried, burned or lost after use. It also warned of a growing demand for agricultural plastics.

There is increasing concern about the microplastics formed as larger plastics are broken down, the report said. Microplastics are consumed by people and wildlife and some contain toxic additives and can also carry pathogens. Some marine animals are harmed by eating plastics but little is known about the impact on land animals or people.

“The report serves as a loud call for decisive action to curb the disastrous use of plastics across the agricultural sectors,” said Maria Helena Semedo, deputy director general at the FAO.

“Soils are one of the main receptors of agricultural plastics and are known to contain larger quantities of microplastics than oceans,” she said. “Microplastics can accumulate in food chains, threatening food security, food safety and potentially human health.”

Global soils are the source of all life on land but the FAO warned in December 2020 that their future looked “bleak” without action to halt degradation. Microplastic pollution is also a global problem, pervading the planet from the summit of Mount Everest to the deepest ocean trenches.

The FAO report, which was reviewed by external experts, estimates 12.5m tonnes of plastic products were used in plant and animal production in 2019, and a further 37.3m in food packaging.

Plastic is a versatile material and cheap and easy to make into products, the report says. These include greenhouse and mulching films as well as polymer-coated fertiliser pellets, which release nutrients more slowly and efficiently.

“However, despite the many benefits, agricultural plastics also pose a serious risk of pollution and harm to human and ecosystem health when they are damaged, degraded or discarded in the environment,” the report says.

Data on plastic use is limited, it says, but Asia was estimated to be the largest user, accounting for about half of global usage. Furthermore, the global demand for major products such as greenhouse, mulching and silage films is expected to rise by 50% by 2030.

Only a small fraction of agricultural plastics are collected and recycled. The FAO said: “The urgency for coordinated and decisive action cannot be understated.”

Prof Jonathan Leake, at the University of Sheffield in the UK and a panel member of the UK Sustainable Soils Alliance, said: “Plastic pollution of agricultural soils is a pervasive, persistent problem that threatens soil health throughout much of the world.”

He said the impact of plastic was poorly understood, although adverse effects had been seen on earthworms, which played a crucial role in keeping soils and crops healthy.

“We are currently adding large amounts of these unnatural materials into agricultural soils without understanding their long-term effects,” he said. “In the UK the problems are especially serious because of our applications of large amounts of plastic-contaminated sewage sludges and composts. We need to remove the plastics [from these] before they are added to land, as it is impossible to remove them afterwards.”

As a solution, the FAO report cites “the 6R model” – refuse, redesign, reduce, reuse, recycle, and recover. This means adopting farming practices that avoid plastic use, substituting plastic products with natural or biodegradable alternatives, promoting reusable plastic products and improving plastic waste management.

Styrofoam trash adds to antibiotic resistance crisis

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The styrofoam container that holds your takeout cheeseburger may contribute to the population’s growing resistance to antibiotics.

Discarded polystyrene broken down into microplastics provides a cozy home not only for microbes and chemical contaminants but also for the free-floating genetic materials that deliver the gift of resistance to bacteria, researchers say.

A paper in the Journal of Hazardous Materials describes how the ultraviolet aging of microplastics in the environment make them apt platforms for antibiotic-resistant genes (ARGs).

These genes are armored by bacterial chromosomes, phages, and plasmids, all biological vectors that can spread antibiotic resistance to people, lowering their ability to fight infections.

The study also showed chemicals leaching from the plastic as it ages increase the susceptibility of vectors to horizontal gene transfer, through which resistance spreads.

“We were surprised to discover that microplastic aging enhances horizontal ARG,” says Pedro Alvarez, professor of civil and environmental engineering and director of the Rice University-based Nanotechnology Enabled Water Treatment Center.

“Enhanced dissemination of antibiotic resistance is an overlooked potential impact of microplastics pollution.”

The researchers found that microplastics (100 nanometers to five micrometers in diameter) aged by the ultraviolet part of sunlight have high surface areas that trap microbes. As the plastics degrade, they also leach depolymerization chemicals that breach the microbes’ membranes, giving ARGs an opportunity to invade.

The researchers note that microplastic surfaces may serve as aggregation sites for susceptible bacteria, accelerating gene transfer by bringing the bacteria into contact with each other and with released chemicals. That synergy could enrich environmental conditions favorable to antibiotic resistance even in the absence of antibiotics, according to the study.

Additional coauthors are from Zhejiang University, Nanjing Tech University, the University of Houston, and Rice.

The Natural Science Foundation of Jiangsu Province, National Natural Science Foundation of China, and the National Science Foundation funded the work.

Source: Rice University

Hiding in plain sight: How plastics inflame the climate crisis

Plastic is ubiquitous, filling stores, overtopping landfills and littering shorelines

It’s even within us, since residual plastic particles now lace air, water and food. While the hazards posed by microplastics are still emerging, an obvious peril has been hiding in plain sight: Plastic derives from fossil fuels, and worsens climate threats throughout its life cycle.

Look down a supermarket aisle lined with chip bags and soda bottles, and chances are you don’t visualize the flaring gas from a shale drilling operation. That might change if you read “The New Coal: Plastics and Climate Change.” 

This report, commissioned by the Vermont-based nonprofit Beyond Plastics, highlights how much greenhouse gas pollution plastics emit — in fossil fuel extraction, manufacturing, incineration, landfills and long-term degradation (potentially spanning centuries).

Source: Center for International Environmental Law

Climate-disrupting emissions from the plastic industry could surpass those from coal production in the U.S. by 2030, the report warns. Given emissions from more than 130 existing facilities, new plants under construction and other industry sources, U.S. plastics could generate the carbon dioxide equivalent of 143 mid-sized coal-fired plants. 

Yet policy makers and regulators have largely overlooked plastics. Maine’s 2020 Climate Action Plan, for example, holds virtually no mention of plastics, waste reduction, trash incineration or recycling. 

“Massive blind spots in policy at local, state and federal levels have allowed plastics to go under the radar,” said Jim Vallette, president of Maine-based Material Research L3C and author of the recent report. 

It’s time to bring plastic’s climate risks into clear view.

Just another form of fossil fuel

Greenhouse gas emissions from global plastics industries stand just behind those of the worst carbon-polluting nations: China, the U.S., India and Russia. At the recent U.N. Climate Summit in Glasgow, Scotland, multinational fossil fuel interests — which include petrochemical and plastics industries — had a stronger presence than any single country, with more than 500 industry representatives (whereas, the U.S. had 165 delegates).

Fossil fuel corporations are pivoting to plastic production to keep afloat, given the existential threat posed by dropping prices of renewable power and increasing electric vehicle adoption. Global plastics production is expected to double by 2040, becoming the biggest growth market for fossil fuel demand, the International Energy Agency (IEA) and BP both forecast

U.S. plastic production draws primarily on ethane gas from hydraulically fractured shale, an abundant resource since the fracking boom that began in 2008. For the eastern U.S., the federal Department of Energy in 2018 projected a 20-fold increase in ethane production over 2013 levels by 2025.

Toxic manufacturing clusters

Following pipeline transport from fracked wells, ethane gas is steam-heated in “ethane cracker” plants until it breaks into new molecules, forming the ethylene used in plastic manufacturing. This energy-intensive process generates high levels of carbon dioxide, and pollutants such as volatile organic compounds and benzene.

Credit: Beyond Plastics

Most plastic manufacturing occurs near the Gulf of Mexico in Texas and along Louisiana’s Cancer Alley,” a region notorious for its high and growing concentration of petrochemical plants.

The New Coal report found that more than 90 percent of climate pollution reported to the U.S. Environmental Protection Agency (EPA) by the plastics industry is released into 18 communities, noting that “people living within three miles of these petrochemical clusters earn 28 percent less than the average U.S. household and are 67 percent more likely to be people of color.”

The world’s largest ethane cracker plant, a joint venture between ExxonMobil and Saudi Arabia’s state-owned petroleum corporation, is nearing completion outside Portland, Texas. Sprawling across a 1,300-acre site, the plant lies less than two miles from area schools and in full view of a low-income housing complex. Communities have fought against these facilities but with limited success.

The myth of plastic recycling

Many of the ethane cracker plants being built will produce single-use plastics such as bottles, sachets and straws. Plastic items often bear recycling symbols, but few actually get recycled. The latest EPA data from 2018 indicates that fewer than 9 percent of plastics were recycled, while 17 percent were incinerated and 69 percent were landfilled. 

At least 115 towns in Maine currently lack any recycling option, with all household waste either landfilled or incinerated. Maine has three municipal waste incinerators operating: in Portland, Auburn and Orrington. Each was built decades ago, when plastic represented roughly 10 percent of the waste stream. That figure has nearly doubled, Vallette said. 

Higher plastic content adds to the carbon dioxide incinerators emit, and can introduce chemicals that are potent warming agents. Vallette has calculated that fluoropolymers, highly persistent PFAS resins used in wiring insulation, may have up to 10,000 times more potential for global warming than carbon dioxide.

Petrochemical corporations have misled consumers for decades by promoting plastic recycling while knowing it was not feasible. The industry also ran repeated ad campaigns to convince consumers that the problem was not with plastic itself, but with irresponsible litterbugs. 

Changes in Maine, Oregon

Now consumers have caught on. States like Maine and Oregon are taking a new regulatory approach that holds producers responsible for the packaging they produce

Maine’s pioneering Extended Producer Responsibility (EPR) law will drastically cut the plastic industry’s “greenwashing capability,” observed Sarah Nichols, Sustainable Maine program director for the Natural Resources Council of Maine. “We’re going to finally get the data we need to make meaningful change. It’s a whole new system.”

Similar programs in other countries have increased recycling rates and reduced waste generation — two measures that could markedly cut Maine’s greenhouse gas emissions. 

Maine has never met its statutory goal for recycling, set in 1989, of 50 percent. Today, only about 36 percent of waste is even collected for recycling (and the percentage getting recycled is likely much less). If the state met its original goal, Nichols estimates, the reduction in carbon pollution would be equivalent to taking roughly 166,000 passenger cars off the road.

Action at all levels — from local to global

“The inevitable, logical next step,” Vallette observed, “is to minimize plastic entering the waste stream.”

Purchasing less plastic, supporting retailers that offer bulk and refillable goods, instituting bans (like Maine’s recent one on single-use plastic bags) and holding producers to account through EPR laws should help. The state also needs to address plastics in the ongoing work of the Maine Climate Council, compensating for the notable absence of waste reduction targets in the 2020 Climate Action Plan.  

A federal EPR bill, the Break Free from Plastic Pollution Act, has garnered more than 100 co-sponsors already, but given the power of the plastics lobby, its passage is far from assured. Among Maine’s delegation, only U.S. Rep. Chellie Pingree has cosponsored the legislation to date.

Congress must also reassess billions of dollars in federal subsidies going annually to the fossil fuel industry. According to a 2020 report by the research nonprofit Carbon Tracker, the global plastics industry receives $12 billion in subsidies annually while paying just $2 billion in taxes and racking up an estimated $350 billion a year in unpaid “externalities” — including marine debris, air pollution and greenhouse gas emissions. 

“In the next few years,” the IEA wrote in a report earlier this year, “all governments need to eliminate fossil fuel subsidies.” 

Peter Dykstra: Environmental “solutions” too good to be true

I’ve long been fascinated with Thomas Midgley Jr. In the 1920’s and 1930’s, he was on his way to joining Thomas Edison and Benjamin Franklin as one of the GOATs of science and invention.


Midgley’s two giant discoveries changed lives – in a good way to start, but then in tragic ways. He discovered that tetraethyl lead (TEL) eliminated engine knock, a scourge of early motorists. And his development of chlorofluorocarbon chemicals (CFC’s) as refrigerants revolutionized air conditioning and food storage.

He was a science rock star, until we learned that the lead in TEL was a potent neurotoxin, impairing child brain development; and CFC’s were destroying Earth’s ozone layer.

Oops. He’s not alone—all too often we “solve” health and environment problems only to learn we’ve created bigger ones.

Miracle chemicals

Midgley never won a Nobel Prize, but Swiss chemist Paul Müller did in 1948. Müller resurrected a long-forgotten synthetic chemical compound, dichlorodiphenyltrichloroethane, or DDT.

DDT showed a remarkable talent for eliminating some agricultural pests as well as human tormentors like lice and mosquitos. DDT is credited with enabling U.S. and Allied troops to drive Japan out of tropical forests in the Pacific.

Scientist and author Rachel Carson exposed DDT’s other talent: Thinning birds’ eggshells, from tiny hummingbirds to raptors like the bald eagle. Bans in the U.S. (1972) and most other nations saved countless species from oblivion.

The peaceful atom

When nuclear weapons destroyed the Japan cities of Hiroshima and Nagasaki, ending World War II, there was little public dissent among Americans. The prevailing argument was that the hundreds of thousands of Japanese citizens killed by the blasts would seem like small potatoes compared to the death toll from a land invasion.

Into the 1950’s, the USSR strove to catch up to the U. S. Through the 1950s and the height of the Cold War, the “Peaceful Atom” became a civic goal. Atomic Energy Commission Chair Lewis L. Strauss saw a future with “electricity too cheap to meter”. The Eisenhower Administration proposed creating a deepwater port at Point Hope, Alaska, by nuking a crater in the Arctic Ocean.

In the 1960’s and 1970’s, fervor to build nuclear power plants grew, then began to wane as concerns about costs, nuclear waste disposal, and safety grew. If the 1979 near-disaster at Three Mile Island chilled Wall Street’s interest in commercial nuclear power, the calamitous 1986 Chernobyl meltdown nearly finished it off.

Bridge fuel?

Nuke power’s “carbon-free” status kept industry hopes alive for a bit. Then in the early 2000’s, with oil men George W. Bush and Dick Cheney at the helm, came a bold play by the oil and gas industry.

Hydraulic fracturing — fracking – was a relatively new take on extracting natural gas from previously unreachable places. Fracking promised a “bridge fuel” that could wean Americans off dirtier fossil fuels en route to a clean energy future.

So tempting was the bridge fuel pitch that the venerable Sierra Club took in an estimated $25 million from fracking giant Chesapeake Energy to help Sierra’s “Beyond Coal” campaign.

Meanwhile, cheap fracked gas undercut both coal and nuclear in energy markets just as multiple trolls peeked out from beneath the bridge: Fracking’s huge climate impacts from methane releases and its rampant use of water and toxic chemicals.

But wait…there’s more!

Years of clogged landfills and trash-choked creeks highlight the worldwide failure of plastics recycling.

Plastic packaging made life easier for all of us. And easier. And easier. According to the U.N. Environment Programme (UNEP), we now use 5 trillion single-use plastic bags per year. A tiny fraction are actually recycled. The rest find virtually indestructible homes in landfills or oceans. Or, with domestic plastics recycling waning, they’re shipped to the dwindling number of developing nations that will accept them.

We’re failing to learn a century’s worth of lessons from Midgley to DDT to nukes to fracking to plastics. Maybe the least we can do is make sure our solutions actually solve things.

Peter Dykstra is our weekend editor and columnist and can be reached at pdykstra@ehn.org or @pdykstra.

His views do not necessarily represent those of Environmental Health News, The Daily Climate, or publisher Environmental Health Sciences.

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