One of the most well-known examples of environmental racism is the 1982 decision to place a toxic waste landfill in Warren County, North Carolina, a predominantly Black community. That case sparked the modern environmental justice movement, but it is far from the only example. Environmental racism shows up across the United States and around the world whenever polluting facilities, toxic dumpsites, or environmental hazards are concentrated in communities of color, whether by deliberate policy or systemic neglect.
Environmental racism refers to any environmental policy, practice, or directive that differentially affects or disadvantages individuals, groups, or communities based on race or color, whether the harm is intended or not. That definition, developed by researcher Robert Bullard in the early 1990s, covers everything from where landfills get built to which neighborhoods breathe the dirtiest air.
Warren County: The Case That Started a Movement
In 1982, the state of North Carolina selected Warren County as the site for a landfill to dispose of soil contaminated with PCBs, a group of industrial chemicals linked to cancer and immune system damage. Warren County was one of the poorest and most heavily Black counties in the state. The decision triggered massive protests and over 500 arrests, drawing national attention to the pattern of siting hazardous waste facilities in communities of color.
Residents lived with the legacy of that 142-acre toxic waste dump for more than two decades before any meaningful cleanup effort was completed. Warren County became the founding story of the environmental justice movement and prompted the first major government studies into the relationship between race and pollution exposure.
Uniontown, Alabama: Coal Ash in a Poor Black Town
After a massive coal ash spill at a power plant in Kingston, Tennessee in 2008, regulators had to decide where to put the waste. In 2010, Alabama’s environmental agency approved the transfer of 4 million cubic yards of coal ash to the Arrowhead Landfill in Uniontown, Alabama. The community’s population is roughly 7.5 times more Black than all other racial groups combined. The median household income sits at about $14,094, and over 40% of residents live below the poverty line, 89.2% of whom are Black.
Residents reported foul odors, respiratory problems, and property value declines after the ash arrived. The case became a textbook example of how environmental burdens travel from wealthier, whiter communities to poorer communities of color. A civil rights complaint was filed, but meaningful federal intervention proved elusive.
Louisiana’s Cancer Alley
The 85-mile stretch of the Mississippi River between Baton Rouge and New Orleans is lined with over 150 petrochemical plants and refineries. The corridor, known as Cancer Alley, runs through parishes with large Black populations whose roots in the area often trace back to former plantation land. According to Johns Hopkins researchers, one area along this corridor carries the highest risk of cancer from industrial air pollution in the entire country, more than seven times the national average. Independent measurements suggest the actual risk could be roughly ten times higher than government models estimate.
Residents in these communities have fought for decades to block new facility permits and push for tighter emissions standards. Despite growing attention, new industrial projects continue to be proposed in the same corridor.
Redlining’s Lasting Environmental Impact
Many of today’s pollution disparities trace directly back to a federal housing policy from the 1930s. The Home Owners’ Loan Corporation graded neighborhoods on maps using a color code: green for “best,” red for “hazardous.” The red-graded neighborhoods were overwhelmingly Black and immigrant communities, and banks refused to lend there. This practice, called redlining, shaped decades of disinvestment.
A 2020 study of 108 U.S. cities found that 94% had elevated land surface temperatures in formerly redlined areas compared to neighborhoods that had been rated favorably. The temperature difference reached as much as 12.6 degrees Fahrenheit. In some cases, locations just two miles apart showed a 10-degree gap. Research on air quality tells a similar story: formerly redlined neighborhoods have measurably higher levels of nitrogen dioxide, a traffic-related pollutant linked to asthma and heart disease, than neighborhoods that received top grades on those same Depression-era maps.
The result is that Black and Hispanic Americans are more likely to live in neighborhoods with worse air, higher temperatures, and closer proximity to industrial facilities, not because of coincidence, but because of policy choices made generations ago that were never corrected.
Urban Heat and Race
Heat is one of the less obvious but deadliest forms of environmental inequity. A 2021 study published in Nature found that the average person of color lives in a census tract with higher summer daytime heat intensity than non-Hispanic white residents in all but 6 of the 175 largest urban areas in the continental United States. A separate analysis of 481 cities showed that the typical Black resident lives in air that is 0.5 degrees Fahrenheit warmer than their city’s average, while the typical white resident lives in air 0.4 degrees cooler. That gap may sound small, but during extended heat waves it translates to meaningfully higher rates of heat-related illness and death.
The pattern exists because historically Black neighborhoods received less investment in tree canopy, parks, and green space, while absorbing more highways, parking lots, and industrial zoning. All of that dark, paved surface traps heat.
E-Waste Dumping in Ghana
Environmental racism also operates across national borders. Wealthy countries export millions of tons of electronic waste to lower-income nations, where workers dismantle old computers, phones, and appliances by hand without protective equipment. One of the largest e-waste processing sites in the world was Agbogbloshie in Accra, Ghana.
A health study of 327 workers at the site, most of them under 30 years old, found that nearly 78% had blood lead levels in the pathological range. About 14% had lead levels high enough to cause symptoms consistent with significant exposure, including severe kidney problems in 6.5% and moderate kidney dysfunction in 39%. Lead poisoning causes permanent neurological damage, especially in young people. The workers processing this waste are overwhelmingly from marginalized communities and have little economic alternative.
Why Complaints Rarely Lead to Change
Federal law technically provides a path for communities to challenge environmental discrimination. Title VI of the Civil Rights Act allows people to file complaints when federally funded programs have a discriminatory impact. But the track record is dismal. The EPA adopted its Title VI regulations in 1973 and received its first environmental complaint in 1993. In its entire history through the period studied, the agency never made a formal finding of discrimination and never denied or withdrew funding from a violating program.
Between 1998 and mid-2003, 136 Title VI complaints were filed with the EPA. Only 16 were accepted. The rest were rejected, dismissed, suspended, or referred elsewhere. Complaint numbers have grown in recent years, nearly doubling to 39 in 2022 and reaching 40 in 2023, with 302 total complaints filed between 2014 and mid-2024. But acceptance and enforcement remain rare. Communities that use the formal process to seek relief are, in practice, almost never successful through that channel alone.
This enforcement gap is itself part of the pattern. The communities most affected by environmental racism are often the ones with the fewest resources to sustain years-long legal battles, and the regulatory systems designed to protect them have historically failed to act.