A Shell Refinery1 sprawls across the former Bruslie and Monroe plantations. Belle Pointe is now the DuPont Pontchartrain Works, among the most toxic air polluters in the state.2 Soon, the Taiwan-based Formosa Plastics Group intends to build a 2400-acre complex of 14 facilities that will transform fracked gas into plastics. It will occupy land that was formerly the Acadia and Buena Vista plantations, and not incidentally, the ancestral burial grounds of local African American residents, some of whom trace their lineage back to people enslaved there.3 

Formosa has earned a reputation of being a poor steward of sacred places. Local residents have petitioned the Governor to deny permits for the facility, citing a long list of environmental health violations in its existing Louisiana facilities, including violations of the Clean Air Act every quarter since 2009.4 The scofflaw company was found to have dumped plastic pellets known as “nurdles” into the fragile ecosystem of Lavaca Bay on the Gulf of Mexico for years – leading to a record $50 million settlement with activists in that community in 2019.5  

In the Antebellum South, formerly enslaved people often homesteaded on lands that were part of or near the plantations they once worked. They established communities of priceless historical and cultural worth, towns such as Morrisonville, Diamond, Convent, Donaldsonville, and St. James. Donaldsonville, Louisiana, is the town that elected Pierre Caliste Landry, America’s first African American mayor in 1868, just three years after the end of the Civil War. This part of Louisiana holds many layers of complex and deep African American history.

But in the last 75 years, since World War II, these communities have been overrun by petrochemical industry expansion enabled by governments wielding the clout of Jim Crow laws to snuff out any opposition or objection. Towns like Morrisonville and Diamond have been bought up to accommodate plant expansion. Residents have been forced to move out, their history and heritage literally paved over. It wasn’t until 1994 that the River Road African American Museum was established to preserve and present the history of the Black population as distinct from plantation representations of slavery.  According to Michael Taylor, Curator of Books, Louisiana State University Libraries: “Only in the last few decades have historians themselves begun to appreciate the complexity of free black communities and their significance to our understanding not just of the past, but also the present.”6

• Two case studies detailing how Klean Kanteen and University of Victoria use Pharos to improve their work
• A webinar featuring safer chemistry research from the students of Dr. Meg Schwarzman, an environmental health scientist at University of California, Berkeley. Jeremy Faludi, Ph.D., Delft University of Technology also presents his research in 3D printing. Both share success stories using Pharos to support research and chemical alternatives assessment courses.
• Example assignments and curriculum from Assistant Professor Heather Buckley, Ph.D. of the University of Victoria.

For years, Habitable has been thinking about and consulting with our partners about how to describe the impact of choosing healthier building products. Here’s why this is a complex and challenging issue for the industry: 

• Incomplete knowledge of what many building products are made of 
• Limited understanding of the health hazards of the thousands of chemicals in commerce today 
• Trade-offs when making material choices 

These reasons drive the need for full transparency of chemical contents and full assessment of chemical hazards. This can ultimately lead to optimizing products in order to avoid hazardous chemicals.

Toxic chemicals have a huge and complex impact on the health and well-being of people and the environment. Those impacts are spread throughout a product’s life cycle. For example, fenceline communities can be exposed during the manufacturing of products in adjacent facilities, workers can be exposed on the job during the manufacturing and installation processes, and building occupants can be exposed during the product’s use stage. Some individuals suffer multiple exposures because they are affected in all of those instances.  

In addition, toxic chemicals can be released when materials are disposed of or recycled. When they incorporate recycled content into new products, manufacturers can include legacy toxicants, inhibiting the circular economy and exposing individuals to hazardous chemicals—even those that have been phased out as intentional content in products. 

We know intrinsically that hazardous chemicals have the potential to do harm and that they commonly do so. For champions of this cause, that understanding of the precautionary principle is enough. Others still need to be convinced and often want to quantify the impact of a healthy materials program. How can healthy building champions start to talk about and quantify the impacts of material choices?

Some people can probably name a chemical that contributes to climate change, whether that is carbon dioxide or methane. But what about other chemicals that you are not as familiar with? In the building materials world, these may include fluorinated blowing agents used in some foam insulation. The agents either have high global warming potential (GWP) or use chemicals in their production that have high GWP.1 Another example is the release of the toxic, global warming, and ozone-depleting chemical carbon tetrachloride in the enormous supply chain of vinyl products, otherwise known as poly vinyl chloride (PVC).2 Purveyors of vinyl products, you may unwittingly be contributing to global warming! 

Yes, the way in which certain chemicals contribute to climate change is important, but this interplay is not the only consequence of chemicals on our climate. Climate change is also altering how toxic chemicals impact our health and the health of the environment – as the world warms, reducing our exposure to toxic chemicals becomes ever more important.

1. Temperatures affect how chemicals behave – warmer temperatures increase our exposure to toxic chemicals—.3 Higher temperatures can allow certain chemicals to vaporize more easily and enter the air we breathe.4 Warmer temperatures on Earth can also encourage the breakdown of some chemicals into toxic byproducts.5
2. Impacts of extreme weather events include concentrated releases of chemicals—catastrophic weather-related events such as hurricanes, fires, etc. can result in the release of toxic chemicals into the air when homes burn, or as factories in the Gulf region are damaged or destroyed.6 These events are becoming more and more frequent and will continue to expose people and the planet to highly concentrated chemical doses.
3. Climate change can exacerbate the health impacts of air pollution—volatile organic compounds released by chemical products contribute to the production of smog, leading to poor air quality which can negatively impact the lungs or exacerbate respiratory diseases such as asthma or Chronic Obstructive Lung Disease.7 Warmer temperatures amplify these impacts.8 As the largest source of air pollutants slowly transitions from transportation sources to chemical products, and as the earth warms, smart product choices will have even more impact on air quality.9
   
4. Toxic chemicals may hinder the body’s ability to adapt to climate change—in recent years, studies discovered that many toxic chemicals are endocrine disruptors.10 Animal studies have highlighted that endocrine-disrupting chemicals can alter metabolism and hinder animals’ ability to adapt to changing temperatures.11 While these findings were in animals, similar effects occur in humans as well, particularly in communities without access to heating or air conditioning.
5. Toxic chemicals increase communities’ vulnerability to climate change effects—toxic chemicals are an environmental justice issue. Ever heard of Cancer Alley? Cancer Alley is a predominantly African American community located in Southern Louisiana right next door to factories pumping out toxic chemicals every day.12 This 100 mile stretch of land is home to 25 percent of the nation’s petrochemical manufacturing and a large portion of its PVC supply chain.13 Aptly named, the cancer rate in this area is higher than the state and national cancer rate.14 Cancer Alley’s location right next to the Gulf Coast also increases its vulnerability to hurricanes and tropical storms. As climate change increases the frequency of extreme weather events, the impacts of toxic chemicals on this community also deepens.

While most toxic chemicals do not cause climate change, they do affect how climate change might impact you. These impacts compound as more chemicals are produced or utilized.15 In 1970, the U.S. produced 50 million tons of synthetic chemicals.16 In 1995, the number tripled to 150 million tons, and today, that number continues to increase.17

Very few of the tens of thousands of chemicals on the marketplace are fully tested for health hazards, and details on human exposure to these chemicals are limited.18 We are exposed to these chemicals every day, in varying quantities and mixtures. Over a lifetime, the small exposures add up. Predictions of health outcomes from long-term exposure are already fuzzy at best, but add on the component of climate change and the mystery deepens.19 While researchers continue to study climate change and chemicals to answer the questions we have, there are steps that we can take to help mitigate the negative impact of climate change on chemicals.

Habitable’s Small Piece of the Pie — How We’re Keeping Consumers Safe 

We cannot remove all chemicals from our lives and many play important roles, but, we can follow the precautionary principle. If there is a less toxic chemical or product available that meets our requirements, we should use it. At Habitable, our work is guided by the precautionary principle—otherwise known as ‘better to be safe than sorry.’ Our chemical and product guidance provides advice on better products.Empowering industry to choose safer chemicals and products helps reduce the burden of toxic chemicals on all people and the planet – especially our most vulnerable populations.

Why We Can and Must Do Better  

Between climate change and toxic chemicals, it could be easy to push toxic chemicals to the side as a someday problem and choose to tackle climate change first. But the truth is that the impacts of toxic chemicals are real and happening today and will only get worse in a warming world. These two issues are connected and influence each other’s outcomes. Climate change is having a significant impact on our world, but prioritizing reduction of  toxic chemicals can reduce the negative consequences that climate change will have on chemicals, and consequently on us.

The Carbon Leadership Forum describes embodied carbon as “the sum impact of all the greenhouse gas emissions attributed to the materials throughout their life cycle (extracting from the ground, manufacturing, construction, maintenance and end of life/disposal).2 In a widely praised book, The New Carbon Architecture3, Bruce King explains clearly why reducing carbon inputs to building materials immediately—present day carbon releases—is more effective at meeting urgent carbon reduction goals than the gains of even a Net Zero building, which are realized over decades. This approach is embraced by the Materials Carbon Action Network, a growing association of manufacturers and others, which states as its aim “prioritization of embodied carbon in building materials.”(emphasis added).4

Climate action priorities are framed differently by groups at the forefront of movements for climate justice and equity in the green building movement. Mary Robinson, past President of Ireland, UN High Commissioner on Human Rights and UN Special Envoy on Climate Change, says climate justice “insists on a shift from a discourse on greenhouse gases and melting ice caps into a civil rights movement with the people and communities most vulnerable to climate impacts at its heart.” 5 The Equitable and Just National Climate Platform6, adopted by a broad cross section of environmental justice groups and national organizations including Center for American Progress, League of Conservation Voters, Natural Resources Defense Council, and Sierra Club, calls for “prioritizing climate solutions and other policies that also reduce pollution in these legacy communities at the scale needed to significantly improve their public health and quality of life.”  The NAACP’s Centering Equity In The Sustainable Building Sector (CESBS)7 initiative advocates “action on shutting down coal plants and other toxic facilities at the local level, as well as building of new toxic facilities, with advocacy to strengthen development, monitoring, and enforcement of regulations at federal, state, and local levels. Also includes a focus on corporate responsibility and accountability.”8

The embodied carbon and climate justice initiatives are aligned when carbon reductions in building products are achieved through industrial process changes that reduce the use of fossil fuels and other petrochemicals. But rarely, if ever, can building products be manufactured with no carbon footprint, i.e. without fossil fuel inputs. These initiatives may not be aligned when manufacturers promote “carbon neutral” or “carbon negative” products that rely on carbon trading or offsets, the practice of supporting carbon reduction elsewhere (by planting trees or investing in renewable energy) to offset fossil fuel and petrochemical inputs at the factory.  According to the Equitable and Just National Climate Platform: “ . . . these policies do not guarantee emissions reduction in EJ communities and can even allow increased emissions in communities that are already disproportionately burdened with pollution and substandard infrastructure.”  They may also allow increased toxic pollution, if a manufacturer chooses to invest in carbon offsets, for example, rather than invest in process changes that reduce toxic chemical use or emissions.  As a result, disproportionate impacts, often correlated with race, can be perpetuated.

Vinyl provides one example of such inequity. Vinyl’s carbon footprint includes carbon tetrachloride, a chemical released during chlorine production that is simultaneously highly toxic, ozone depleting, and a global warming gas 1,400 times more potent than CO2. Offsetting these releases with tree planting or renewable energy purchases does nothing for the toxic fallout, from carbon tetrachloride, fossil fuels and other petrochemicals, on the communities adjacent to those manufacturing facilities. 

Experts agree that the most embodied carbon reductions by far are to be had in addressing steel and concrete in buildings. Beyond that, experts disagree about the strength of the data available to track carbon reductions and compare products in a meaningful, objective way, and warn of diminishing returns relative to the investment needed to track carbon in every product.  These may prove to be worth pursuing, but not at the expense of meaningful improvements to conditions in fenceline communities.

Habitable believes that these approaches can be reconciled and aligned through dialogue that includes the communities most impacted by the petrochemical infrastructure that is driving climate change. Our chemical hazard database, Pharos, and our collaboration with ChemFORWARD provide manufacturers with the ability to reduce their product’s carbon and toxic footprints. 

We can in good faith pursue reductions in embedded carbon and toxic chemical use, climate and environmental justice and to define climate positive building products accordingly. Prioritizing selection of products simply upon claims of carbon neutrality, however, is not yet warranted.