The Toxic Inheritance of America’s Wars
Esmaeil Baqaei, the spokesperson for Iran’s Foreign Ministry, recently warned of the increasing environmental damage caused by the U.S. war, drawing attention to oil contamination in the Persian Gulf that has begun washing up on Iranian shores. “This incident is only one visible example of the extensive pollution — both overt and concealed — that has degraded the waters of the Persian Gulf and the Sea of Oman,” he wrote on X. “Who bears responsibility for compensating these damages? Is it the nations that consume the inexpensive energy exported from our region, the shipping insurers, or the aggressors and their partners who have transformed the Persian Gulf and the Sea of Oman into a theater for military operations and the testing of highly destructive weaponry?”
Alongside death and destruction that has killed or wounded tens of thousands of Iranians, the U.S.–Israeli war has caused massive environmental devastation. By March, attacks had already resulted in more than 300 incidents of potential environmental harm, documented across 12 countries in the region, according to a report by the Conflict and Environment Observatory. These toxic exposures threaten not only today’s war victims, but also future generations who will grapple with the knock-on effects.
The ongoing satellite blackout has hindered the work of those tracking the environmental devastation.
Major commercial satellite companies have restricted or delayed the publication of their Middle East data at the behest of the U.S. government. Likely intended to obscure the true extent of damage inflicted on U.S. military facilities across the region, the ongoing satellite blackout has also hindered the work of those tracking the environmental devastation that has accompanied the conflict since it began in February. Even with the limited data, the Conflict and Environment Observatory has concluded that “[a]ll parties to the conflict” have appeared to target “environmentally risky facilities,” including oil infrastructure and water desalination plants.
According to research by the Climate and Community Institute, U.S. and Israeli attacks on Iran in the first 14 days of the war emitted roughly 5 million metric cubic tons of greenhouse gases. Put another way: In two weeks, coalition strikes produced roughly the same amount of carbon emissions as the country of Iceland does over the course of a year. And as the war dragged on, missile facilities, weapons depots, oil infrastructure, nuclear facilities, dual-use and civilian infrastructure including power stations and desalination plants were also increasingly struck.
The environmental threats these targets pose is enormous. Damaged desalination plants jeopardize the civilian water supply and flood nearby land and marine environments with harmful chemicals like sulfuric acid. Bombed infrastructure fills urban streets with asbestos-contaminated rubble and dust, heightening the risk of respiratory illness and cancer among exposed populations. Damaged weapons facilities pollute surrounding areas with explosives, highly toxic liquid propellants, and heavy metals. And the targeting of nuclear facilities risks radiation exposure or worse, an uncontrolled nuclear disaster, like a meltdown.
Fossil fuel infrastructure has also remained a key military objective for all belligerents. Israeli strikes on more than two dozen Iranian oil depots in early March engulfed the capital city of Tehran in a cloud of toxic smoke that rained black carbon and sulfuric acid on the city’s 9 million residents. Attacks on oil tankers and other commercial vessels have leached oil and spilled fuel into myriad waterways from the Egyptian port of Damietta, where Iran struck two liquefied natural gas vessels, to the coast of Sri Lanka, where the U.S. sank an Iranian frigate. And such environmental damage is likely to increase as the conflict continues to sporadically flare up.
The U.S. has a long history of starting wars that leave deep environmental scars. And for decades, U.S. troops have paid for it with exposures to toxic substances, including defoliants like Agent Orange, an herbicide the U.S. sprayed across Southeast Asia in the 1960s and 1970s; smoke from oil depot fires that dotted the landscape in and around Iraq during the 1991 Gulf War; and the military base burn pits of the post-9/11 forever wars. The PACT Act of 2022 extended healthcare access to millions of veterans who served from the last half of the 20th century to today and now suffer from a wide range of conditions related to such wartime exposures, including cancer, chronic obstructive pulmonary disease, and reproductive issues likely caused or exacerbated by their military service.
Health problems among U.S. veterans often mirror those of local communities in war zones as they are exposed to the same toxic substances. Just as American troops returned home from Iraq with higher rates of diseases like urinary and blood cancers, doctors in the Iraqi city of Fallujah, for example, reported higher birth abnormalities and miscarriages among the local population.
Fallujah offers a glimpse of the environmental fallout that the people of neighboring Iran may face in the years to come. More than half of Fallujah was leveled in a U.S. Marine-led siege of the city in 2004. Hospitals, water systems and electrical grids were destroyed. A similar wave of destruction accompanied the ISIS takeover of the city in 2014. Fallujah was then besieged and heavily bombed in 2016 during the U.S.–Iraqi military operation that retook the city. Iraqis in Fallujah fled en masse in both 2004 and 2014. Those who returned were greeted by demolished homes, bomb craters, chemical spills, and houses with ash covered walls littered with bullet holes.
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Since 2004, Fallujah has seen a 12-fold increase in childhood cancer rates and similar spikes in early onset cancer and respiratory diseases, according to a study co-authored by local physicians. Elevated rates of miscarriages and lethal birth defects that followed the initial U.S. invasion have never diminished. Reports on these poor health outcomes by doctors at Fallujah Women and Children’s Hospital led to the creation of a multidisciplinary study steered by researchers from Purdue University in the U.S. and Britain’s Newcastle University which tracked the intergenerational health effects of heavy metal exposure.
Depleted uranium munitions — which shatter and ignite on impact, allowing them to penetrate heavy armor plating — have been used by the U.S. in combat since the Gulf War. Spent rounds then release particles of radioactive uranium and other heavy metals, like titanium, into the surrounding earth, water, and air. Heavily bombarded areas in Fallujah were left with a greater percentage of heavy metals in their soil as a result.
Those who returned to the city after the battles, rebuilt their homes, reseeded contaminated farmlands, and drank and bathed in local waters now carry higher levels of radiation and heavy metals in their bodies. Indeed, uranium was found in the bones of one-third of study participants, all of whom were children during the 2004 siege — at levels roughly 300 times higher than their generational peers in America.
While highly toxic on its own, uranium levels are also often a marker for exposure to heavy metals including lead, arsenic, and mercury, which have been known to harm virtually every organ in the human body. Today, elevated rates of miscarriages and lethal congenital anomalies plague families in Fallujah.
“War itself is always about combustion,” explained Kali Rubaii, a cultural anthropologist and Purdue University assistant professor who led the study on Fallujah. “The combustion of generally toxic materials redistributes these toxicants into people’s air, water and food. Every time someone breathes in everything in the air, they are inheriting the pollutants of war.”
Post-war surges in birth defects, respiratory diseases, and cancers in Fallujah have now been directly linked with exposure to the weapons of war. As the pollutants of war are largely universal, the study’s implications lie far beyond Fallujah. Recommendations for those returning to bombarded areas are included in the study’s appendix in both Ukrainian and Arabic. When I spoke to Rubaii in March — two days after Tehran was drenched in black rain — she hoped the study’s finding, and its recommendations for returnees, could be of help to those living near the Persian Gulf.
The U.S–Israeli war on Iran has only exacerbated ongoing environmental crises in the Middle East, including a five-year-long drought, brought on by years of insufficient rainfall linked to human-induced climate change, that poses a severe threat to Tehran’s water supply. The Persian Gulf’s fragile coral reefs and mangrove forests have also, for years, suffered under rising water temperatures, intensive vessel activity, and growing industrial pollution.
“The most effective way to limit heavy metal toxicity from war is by not bombing cities.”
The Persian Gulf’s ecosystems still bear the scars of oil spills from the U.S. battles with Iraq during the 1991 Gulf War. Now, according to a recent study from the University of South Florida’s College of Marine Science, oil spills in the Gulf have increased dramatically since the beginning of the war to cover roughly four times the area in March 2026 as they did one year earlier. Though it is still too soon to calculate the full extent of the environmental harm imposed by the ongoing conflict, the toxic airborne pollutants, land contaminated with heavy metals, and oil-soaked waterways will pose a threat to life for decades to come.
As Rubaii’s study concludes, “the most effective way to limit heavy metal toxicity from war is by not bombing cities.” While we live in an age where threats to civilian infrastructure are espoused and ordered by prime ministers and presidents alike, the illegality of these attacks — and their grave ecological consequences — cannot be ignored. The targeting of a country’s energy infrastructure, waterways, bridges, and homes makes it more likely that the attacked nation will respond with attacks on similar targets, placing civilians at risk in the present and, due to environmental contamination, for following generations.
People can’t be healthy if they live on sick lands.
The International Committee of the Red Cross — which works to uphold the laws of war — has repeatedly affirmed that the environment itself is a civilian object and must be protected. Under the 1998 Rome Statute, which established the International Criminal Court, to inflict disproportionate widespread and severe environmental damage is a war crime.
The Iran war has already sparked a global fuel crisis, threatened future harvests, and placed tens of millions of people at risk of hunger, imperiling this generation and the next. It has also subjected civilians to toxic smoke, black carbon rain, and other public health hazards. People can’t be healthy if they live on sick lands. Even after the final bomb of the Iran war has dropped, the ecological devastation and health hazards will haunt U.S. service members and local residents alike. Fallujah has shown that even long after the guns fall silent, war victims continue to suffer with the fallout of conflicts that have, quite literally, seeped into their bones.
