Irish waters exposed to grave environmental dangers by shadow fleet carrying Russian oil

The shadow fleet is a group of several hundred vessels used to transport sanctioned Russian oil and other goods. These ships operate in a trade affected by sanctions, making their movement and oversight especially important. The fleet matters because many vessels are ageing and poorly maintained, creating environmental risks as they travel along busy international routes.

The ships are typically registered in developing countries with poor or non-existent inspection regimes. Their crews often lack adequate training. This combination can leave serious safety problems undetected or unresolved, while the vessels continue carrying oil over long distances.

The article does not describe one single method that every ship uses to bypass sanctions. It shows that sanctioned Russian oil continues moving through a fleet designed around weak oversight and difficult-to-monitor routes. That trade has brought more of these tankers near Ireland, where authorities recorded 218 vessels this year and found major safety or pollution-control issues on 72 per cent of them.

Satellite data recorded 218 shadow fleet vessels passing through Ireland’s exclusive economic zone so far this year. Some ships made multiple transits, so the figure counts recorded vessels and passages in the investigation’s dataset. The traffic was almost twice the level seen during the same period last year.

The inspection records show serious weaknesses. Seventy-two per cent of the vessels had major safety or pollution-control issues during their last inspection. Across the fleet, inspectors recorded 676 individual deficiencies. One tanker had 20 defects, showing how problems could be concentrated on a single vessel.

The concerns were not limited to paperwork or minor maintenance. Fire-safety problems appeared on 71 vessels. Structural issues were found on 22, while 28 had pollution-control failings. The article says these kinds of defects could directly increase a tanker’s chance of sinking or causing serious pollution, raising the environmental risk for Ireland’s west coast.

An exclusive economic zone, or EEZ, is a sea area where a coastal state has specified economic and sovereign rights. Ireland’s EEZ extends 370km into the Atlantic. It is not described in the article as ordinary national territory, but Ireland still has important authority and responsibilities within the zone.

The article identifies two central roles for Ireland. The State can exercise certain economic and sovereign rights in the area. It is also responsible for pollution control there. That responsibility matters because tankers carrying oil pass through the zone, sometimes with serious defects recorded during earlier inspections.

This makes the EEZ more than a line on a map. It is an area where Ireland must monitor environmental threats linked to maritime traffic. The investigation recorded 218 shadow fleet vessels there this year. Because 72 per cent had major safety or pollution-control issues, the condition of ships passing through the zone has direct significance for Ireland’s coastal environment.

Shadow fleet traffic near Ireland increased sharply because vessels carrying Russian oil changed route. The Defence Forces said traffic grew by 192 per cent this year. The article also says the level was almost double that of the same period last year, showing how quickly Ireland’s exposure has increased.

A military spokesman linked the change to threats by UK authorities last March to seize shadow fleet vessels passing through the English Channel. The Channel became a more difficult route for ships involved in this trade. Many vessels therefore took a longer route around Scotland and Ireland instead.

That northern passage is described as longer and more perilous. It has shifted more sanctioned tankers into Ireland’s EEZ, where satellite data recorded 218 vessels this year. Their arrival matters because 72 per cent had major safety or pollution-control issues on their last inspection. The route change therefore increased both traffic and Ireland’s potential environmental exposure.

If a poorly maintained oil tanker sinks, collides, or spills, oil could reach the waters and coastline off Ireland’s west coast. The article describes the resulting danger as an exponential environmental risk. Ireland is responsible for pollution control in its EEZ, so an incident there would create a serious national challenge.

The mechanism is straightforward. A tanker carrying oil can release that cargo when its structure fails, when a collision damages the vessel, or when pollution-control equipment does not work properly. The investigation found structural issues on 22 vessels and pollution-control failings on 28. These defects could increase the chance of serious pollution.

The danger is not only theoretical. In recent years, shadow fleet vessels have been involved in about 50 oil spills and collisions. Last June, a tanker ran aground off Oman and polluted many kilometres of coastline. More tankers now use the perilous northern route, increasing Ireland’s exposure to a similar event.

These defects are especially dangerous because each weakens a different protection on an oil tanker. Fire-safety failures can make it harder to prevent or control a fire. Structural problems can weaken the vessel’s ability to withstand stress, damage, or rough conditions. Pollution-control failures can allow oil or other harmful material to escape.

The risks can also combine. A fire may damage equipment or the ship itself. Structural failure can lead to flooding, loss of stability, or sinking. If pollution-control systems are defective during an accident, the released oil may be harder to contain. The article directly links such issues with a greater chance of sinking or serious pollution.

The inspection figures show the scale of concern. Fire-safety issues were recorded on 71 vessels. Structural problems appeared on 22, and pollution-control failings on 28. Across 218 vessels, inspectors recorded 676 deficiencies. These findings explain why ageing, poorly maintained tankers pose a growing environmental risk to Ireland’s west coast.

Sanctions place legal restrictions on Russian oil and the vessels carrying it. The article recorded 208 of the 218 tankers under EU sanctions when they passed through Ireland’s EEZ. The remaining vessels faced sanctions imposed by the US, UK, or New Zealand. Yet sanctioned cargoes continued moving through a large fleet of tankers.

Registration and inspection are central to that system. Shadow fleet vessels are typically registered in developing countries with poor or non-existent inspection regimes, and their crews often lack adequate training. Weak oversight can leave serious defects unresolved. The article found 676 deficiencies across the fleet, including fire, structural, and pollution-control problems.

Routes then adapt to enforcement pressure. After UK authorities threatened to seize shadow fleet vessels in the English Channel, many shifted to the longer route around Scotland and Ireland. This helped keep Russian oil moving while increasing Ireland’s exposure. The article records almost double the previous year’s traffic and describes the northern route as more perilous.