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Securing the Safer

A race against time for the people of Yemen and the Red Sea

An international operation to prevent a major oil spill in the Red Sea has reached a critical juncture. A support vessel has reached the FSO Safer and begun assessing conditions on board to prepare for the transfer of a million barrels of oil off the decaying ship. After nearly two years of preparations, this kicks off the delicate operation to avert potentially immense human suffering and costly environmental damage.

An urgent and complex problem

The Safer, moored in the Red Sea almost nine kilometres off the coast, is an oil storage vessel carrying an estimated 1.1 million barrels of light crude. This is four times as much oil as carried by the Exxon Valdez in 1989, the second worst oil spill in the history of the United States.

The Safer is 47 years old. The conflict in Yemen means there has been no maintenance on it for seven years. Its structural integrity is possibly compromised, and its condition continues to worsen. A dangerous build-up of flammable gases in its tanks is likely.

The threat of catastrophe – a spill from a breach in the hull, or an explosion – grows greater with every passing day. At any time, the stranded ship could be struck by a dislodged mine, or it could spontaneously combust or break up.

The result would be a humanitarian and environmental catastrophe. 

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Moored off Yemen, the FSO Safer poses a substantial threat of spilling oil due to leakages, an explosion from the accumulation of volatile gases, or a strike from a floating mine. Photos: UNDP/Coen de Jong (left and centre), UNDP/Janthomas Hiemstra (right)

The people of Yemen will suffer the most. A significant spill could close of the ports of Hodeidah and Saleef, which brings food, fuel and life-saving supplies into Yemen where 17 million people need food assistance.

Millions could be exposed to highly polluted air, and fishing communities along the coast could be devastated, with as many as 200,000 livelihoods being wiped out.

A spill could devastate one of the world’s richest marine environments, destroying pristine reefs and coastal mangroves.

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In the event of an oil spill, the lives and livelihoods of up to 12 million people would be directly affected, with the unique environment of the Red Sea experiencing enormous damage above and below the water. Photos: Shutterstock

Oil from the Safer could reach the African coast and any country bordering the Red Sea.

It could also disrupt the Suez Canal, one of the world’s most important shipping lanes. This would mean billions in trade losses every day, which is what happened when the super container Ever Given grounded in 2021.

The clean-up costs could be as much as US$20 billion, and the damage could take as long as 25 years to recover from.

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A spill would affect countries bordering the Red Sea and disrupt the Suez Canal. Clean-up costs could reach US$20 billion. Photos: NASA

The path to a solution

In September 2021, the UN Resident and Humanitarian Coordinator for Yemen was tasked with leading the UN System response on the Safer and coordinating all efforts to resolve the threat, as well as strengthening contingency plans in the event of a spill. UNDP is implementing the project.

The UN produced a plan to prevent a spill by transferring the oil to a safe vessel and installing a replacement tanker.

The UN has worked closely with the Government of Yemen in Aden. In September 2022, the Government of Yemen in Aden and Sana’a authorities each agree on a long-term solution – a replacement vessel to hold the oil tethered to a special buoy system – a CALM buoy – that makes it a Floating Storage and Offloading or ‘FSO’, will be installed.

Video: Boskalis

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The scale and complexity of the task means the UN has had to draw on specialized expertise. The International Maritime Organization and UN Environment Programme are supporting the contingency planning efforts.

The Office for the Coordination of Humanitarian Affairs has provided bridging finance from the Central Emergency Relief Fund.

The World Food Programme has contributed its experience contracting and operating large transport vessels. 

Photo: Shutterstock

Photo: Shutterstock

UNDP has begun the operation

Following consultation with maritime legal firms, shipbrokers, insurance companies and oil spill experts, UNDP secured a replacement vessel – the Nautica – from leading global tanker company Euronav. Since then, the Nautica has been modified so that it can function as an ‘FSO’. UNDP has also contracted leading global marine salvage company SMIT to undertake the ship-to-ship transfer.

A crew of experts onboard SMIT support vessel Ndeavor are now inspecting the Safer in order to assess its condition and make it safe. This is a risky stage of the process since nobody knows what the conditions on board are like.

Video: UNDP/Coen de Jong

Once the ‘all clear’ is given, a very large crude carrier or ‘VLCC’ – the Nautica – will arrive alongside the Safer. SMIT will then transfer the oil to the Nautica. If all goes well, it will take about three weeks.

The Safer will be towed, and a ‘CALM’ buoy will be installed – a tethering system will allow the replacement tanker to be safely moored offshore for a longer period of time.

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The expert crew of the support vessel Ndeavor (right) is assessing conditions on board the FSO Safer (centre) in preparation for the transfer of crude oil onto the Nautica (left). Photos: UNDP (left and centre), Boskalis (right)

An example of what international cooperation can achieve

The journey of the Safer is one of political complexities, operational risks, and funding challenges. To reach this point has not been easy.

The UN has mobilized UNDP, UNEP, IMO, OCHA, WFP, as well as UN Member States, private companies and the general public. This collaboration remains critical to the project’s success.

“With the marine salvage support vessel Ndeavor onsite, the project can now begin in earnest. This marks the culmination of tremendous amounts of work and coordination among UN agencies, maritime lawyers, oil spill experts and many more,” UNDP Administrator Achim Steiner said. “It is also a clear sign of what multilateral cooperation can achieve, and a prime example of the importance of prevention.”

Obstacles remain

We cannot celebrate until the oil is safely stored in the replacement vessel and the Safer is towed to a yard for green recycling. Aside from the ongoing risk of an explosion or spill, the project is reliant on the continued goodwill and commitment from the parties to the Yemen conflict.

A more permanent solution for what to will happen to the oil after it has been transferred to the Nautica is also a critical issue. The UN continues to work tirelessly to find a solution.

Last but not least, despite the generosity of donors to date, the project remains underfunded.

$114 million has so far been mobilized from generous Member States, the private sector and the global public, as well as additional internal bridging finance, which must be reimbursed.

With this funding, the UN has the resources to carry out phase 1 of the operation. A million barrels of oil will be transferred from the Safer to the replacement vessel, preventing the worst-case humanitarian, environmental and economic catastrophe.

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The UN currently has the resources to carry out the initial critical phase of transferring the oil onto the Nautica. However there is still a budget gap of $15 million for the emergency phase, while $14 million is needed for phase 2. Photos: UNDP/Coen de Jong

Even after the ship-to-ship transfer, the decaying Safer will still carry a considerable amount of viscous residual oil and pose a significant environmental threat to the Red Sea.

The operation has begun – but to finish it without delay, the UN is counting on further generous contributions.

“With $143 million we can save $20 billion in clean-up costs and untold billions of dollars of damage to the environment, to fishing, to shipping, and to tourism in the Red Sea area,” the UN Resident and Humanitarian Coordinator for Yemen, David Gressly, said. “Do we prevent this catastrophe, or do we allow it to happen? It’s our choice. Let’s choose wisely.”

Video: UNDP/Coen de Jong

An additional $29 million is required to complete the work, including as a matter of urgency to repay the $20 million in internal bridge financing from the UN Central Emergency Response Fund.

We cannot afford not to succeed – the potential impacts of failure are simply too great for the people of Yemen who are already suffering from years of war, not to mention the possible danger to the Red Sea, the Suez Canal and the wider region, and the global economy. We urge the international community to step up its support at this critical juncture.

The United Nations is grateful for the support of the following donors on the Safer Project:

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We also thank the HSA Group, the International Association of Oil & Gas Producers and Trafigura Foundation, and Octavia Energy/Calvalley Petroleum and generous individuals that have contributed to the UN crowdfunding campaign for the plan.


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