The skies over Tehran darkened by March 8, not only from conflict but also with a thick, foul-smelling rain, a direct consequence of Israeli attacks on over 30 Iranian oil facilities. This incident marked the beginning of an escalating environmental crisis, as reported by Wired, with repercussions now extending across the Gulf and into southern Lebanon. Residents described the downpour as 'black rain,' coating everything in a soot-like residue, a stark visual of the war's spreading ecological toll.
The immediate aftermath of the March 8 strikes on Iranian oil infrastructure brought an unwelcome spectacle to Tehran. Residents watched as a dark, viscous rain fell, leaving a sooty film on streets and buildings. This was not a natural phenomenon.
The scale of these attacks, targeting more than 30 oil facilities, was so extensive that even US officials later expressed reservations about their strategic justification, Wired reported. From that night, the environmental damage began to spread. Smoke plumes drifted over Fujairah, oil slicks threatened Gulf waters, and charred farmland became visible in southern Lebanon.
Open-source intelligence, satellite imagery analysis, social media reports, and official government statements collectively paint a picture of an ecological crisis unfolding across multiple fronts: land, sea, and air. This is a complex problem, not a single incident. Numbers tell part of the story.
The first two weeks of the conflict alone released more than 5 million tons of carbon dioxide equivalent into the atmosphere. To put this in perspective, researchers estimate a single missile strike generates roughly 0.14 tons of CO2 equivalent. That is comparable to driving a car for 350 miles.
The math does not add up for a sustainable future in this region. These emissions stem from more than just exploding ordnance. Aircraft sorties, naval operations, widespread fires ignited by bombardments, heavy fuel consumption, and the inevitable processes of reconstruction all contribute to the carbon footprint.
While some damage can be quantified in atmospheric emissions, much of the physical, localized destruction remains challenging to measure fully while hostilities persist. Beyond the sky, the physical destruction on the ground is stark. Lebanon’s National Council for Scientific Research (CNRS) reported that over 50,000 housing units were destroyed or damaged within approximately 45 days of the war, according to AFP.
Of these, 17,756 units were completely destroyed, with another 32,668 sustaining significant damage. In Iran, satellite damage assessments by Conflict Ecology, a geospatial research lab at the University of Oregon, identified 7,645 destroyed buildings. Tehran itself saw more than 1,200 buildings leveled, including military installations.
Destroyed structures represent only the most visible layer of the environmental cost. Soil, water, and debris often harbor contamination that is slower to detect and harder to quantify. Antoine Kallab, a policy adviser and academic who has extensively studied environmental damage in Lebanon, observed that conflict fundamentally reshapes ecosystems. “Any active war that leads to displacement, where people are forced to leave their communities and agricultural lands, definitely has an impact on the environment,” Kallab stated.
He highlighted that while bomb smoke dissipates, toxic debris persists. This material mixes into the soil, altering its quality, or contaminates water sources. The scale is immense.
Kallab noted that Lebanon generated between 15 and 20 million tons of rubble in just three months during the previous 2024 conflict with Israel—an amount the country would typically produce over two decades in peacetime. This rubble is not inert. When buildings collapse or are bulldozed, the resulting debris can leach plastics, solvents, insulation fibers, heavy metals, asbestos, and other pollutants into surrounding soil and water systems.
The environmental toll deepens as homes, roads, water networks, and sanitation infrastructure disintegrate. Pollution from burning fuel and explosives also lingers, with toxic particles settling onto land and water, damaging soil, forests, and crops, disrupting nutrient cycles, and contaminating water supplies. Wim Zwijnenburg, program leader for humanitarian disarmament at the Dutch NGO PAX, underscored the particular danger posed by military and industrial sites. “Rocket fuel production sites, any sites involved in the process of making missiles, these are facilities that are processing and storing toxic substances,” Zwijnenburg explained.
Here is what they are not telling you: the long-term health implications from these substances can span generations. Patrick Bigger of the Climate and Community Institute warned that pollutants released by burning fuel and explosives create longer-term risks extending far beyond the immediate blast zone. “There’s also the really scary potential for the bioaccumulation of heavy metals and persistent organic pollutants in the food chain,” Bigger added. These dangerous substances enter the soil, are absorbed by plants, consumed by animals, and then ascend the food chain, ultimately impacting human populations.
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The Ministry of Agriculture in Lebanon reported that at least 68 percent of its agricultural areas had been affected, either directly or indirectly, as of September 2024. At sea, separate attacks, spills, and leaks risk converging into a wider ecological catastrophe. The Gulf’s marine environment was already under considerable pressure from rising water temperatures, extensive industrial activity, and habitat loss.
The war introduces another layer of stress. This danger extends beyond direct spills. As vessels return to the Strait of Hormuz, the presence of mines, active sonar, increased military patrols, and renewed shipping congestion generate additional stress beneath the surface for species already navigating one of the world’s most extreme marine environments.
These waters are shallow, warm, and semi-enclosed, with limited circulation. Such conditions allow contaminants to persist longer than in more open oceans, meaning pollution can travel far and linger in fragile ecosystems. This region is home to around 7,000 dugongs and fewer than 100 Arabian humpback whales, a rare non-migratory population.
These animals cannot simply relocate when conflict intensifies. In March, US and Israeli forces attacked the Shahid Bagheri, a container ship converted into a military drone carrier by Iran’s Islamic Revolutionary Guard Corps (IRGC). Satellite analysis cited by experts indicated the grounded vessel subsequently leaked heavy fuel oil.
Slicks from this incident drifted west towards the mangroves of the Hara Biosphere Reserve, a Unesco-recognized biodiversity site supporting turtles, pelicans, and sea snakes. Further south, attacks on refineries on Lavan Island raised concerns for nearby Shidvar Island, an uninhabited area known for its coral reefs, nesting sea turtles, and migratory birds. Other smaller spills have also been reported off Basra, Kuwait, and north of the UAE, demonstrating how disparate maritime incidents can collectively create significant ecological stress.
These incidents threaten more than just wildlife. Contaminated coastal waters can damage fisheries, jeopardize aquaculture, affect seafood safety, and put additional pressure on Gulf states that rely heavily on desalination for freshwater. Doug Weir, director of the Conflict and Environment Observatory (CEOBS), a UK-based monitor, analyzed footage from Tehran that appeared to show burning oil leaking from a damaged petrochemical facility directly into a nearby sewer system.
Weir observed that many local contamination events may never be fully documented, even as their consequences persist. “There is a huge amount of devastation that we haven’t seen,” he said. This is a death by a thousand cuts. Some of the war’s most visible environmental damage has manifested in the atmosphere.
Strikes on oil facilities in Tehran resulted in days of thick black smoke covering the skies above the city of millions. Iranians described scenes as “apocalyptic” as dark clouds of noxious gases from burning oil fires engulfed the capital. Among the pollutants released during these fires was black carbon, directly linked to acute respiratory problems.
Burning oil and high explosives also emit volatile organic compounds (VOCs), sulfur oxides (SOx), nitrogen oxides (NOx), and fine particulate matter, all posing broader environmental and public health risks. Attacks on military facilities can release fuels, oils, heavy metals, energetic compounds, and PFAS—the so-called “forever chemicals” that endure in the environment. In Lebanon, the reported use of white phosphorus has raised additional alarms.
It ignites fires, damages crops, alters soil chemistry, and releases toxic particles into surrounding areas. Meanwhile, researchers estimate a single fighter jet can emit around 15 tons of carbon dioxide for every hour of flight. The thousands of sorties conducted in the initial weeks of the war are estimated to have generated the equivalent of more than half a million tons of CO2.
While the bombs may eventually cease, the environmental consequences often do not. Bigger reiterated that beyond immediate airborne pollutants, “The vast majority of the climate damages that come from modern warfare are from the destruction and the necessary rebuilding of concrete buildings.” This highlights a long-term, systemic issue. Beyond the physical harms of conflict, another significant environmental risk emerges once the fighting stops: weakened governance and an impaired ability to recover.
Doug Weir articulated this clearly: “What we always see in conflicts is environmental governance is weakened because states recovering from conflict are distracted.” He noted that these states face a multitude of priorities, with environmental concerns often relegated to a lower tier. Follow the leverage, not the rhetoric; reconstruction funds rarely prioritize ecological restoration. International support, therefore, proves critical.
In other conflicts, such as in Ukraine, funding and cooperation for environmental recovery were more accessible and reactive, Weir observed. Asked whether the world was likely to mobilize in the same way for the Middle East, his answer was blunt: “Not so much.” In Lebanon, this challenge is compounded by persistent instability and ongoing displacement. Kallab emphasized that many communities remain unable to return to their agricultural lands, while others face severe humanitarian pressures even after de-escalation. “So before we give people the ability to restore their natural environment, they need to restore their immediate livelihood, home, and houses,” Kallab explained.
The impact is cumulative, a series of events adding up. Moving forward, environmental monitoring organizations will continue to track the long-term spread of contaminants, assessing the full scope of damage to biodiversity and human health. The effectiveness of any future cleanup efforts will depend heavily on regional stability and the political will of affected nations and international bodies to prioritize ecological recovery alongside humanitarian and infrastructural reconstruction.
Observers will watch for any coordinated international initiatives to address this widespread contamination, particularly in the Gulf’s fragile marine ecosystems and Lebanon’s agricultural heartlands. The next phase will involve calculating the true economic cost of this environmental degradation, a figure likely to dwarf immediate military expenditures.
Key Takeaways
— - Israeli strikes on Iranian oil facilities initiated a widespread environmental crisis, including 'black rain' in Tehran.
— - Over 5 million tons of CO2 equivalent were released in the conflict's initial two weeks, alongside extensive physical destruction of buildings and infrastructure.
— - Contamination from rubble, industrial sites, and oil spills threatens soil, water, and marine ecosystems across Iran, the Gulf, and Lebanon.
— - Post-conflict recovery faces challenges due to weakened environmental governance and a likely lack of international support, exacerbating long-term humanitarian and ecological issues.
Source: Wired
