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How countries can trade their way to climate resilience

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In the winter of 2014, the Finistère area of Brittany in northwestern France was hit with violent storms, bringing torrential rain, heavy wind and flooding. Winter floods in this part of France are common; in 2014, however, the heavy rainfall caused the river to rise to record levels – 2.5 times higher than average – threatening people and infrastructure.

As the storm intensified, 55,000 households across the region lost power, and, as rivers breached their banks, the towns of Quimper, Morlaix and Quimperlé were submerged under as much as one metre of water. Homes and schools were evacuated and city centres were closed.

Pictures of water masses that blur over landscapes and cities are gradually becoming recurring features of the television news as the changing climate brings on more violent weather events. According to the World Bank, floods are the most frequent natural disaster and the one that costs most in terms of human life and material damage. Because of this, governments are increasingly seeing the need to implement solutions for building more resilient communities.

Trade can play an important role in response, recovery and building resilience to natural disasters, particularly through the implementation of technologies that help to reduce emissions and protect livelihoods from the impacts of climate change. Many companies are seeing this trend, and are producing innovative technologies to meet the challenges of the future.

NoFloods, a Danish company, have created a mobile flood protection barrier system to protect people, infrastructure and the environment from the impacts of flooding. When this system was deployed in two towns in Brittany, significant damage was prevented and risk to residents was minimized.

During the Brittany floods, the cities of Redon and Pontivy deployed NoFloods barriers, protecting their infrastructure from damage and their residents from danger. For the local authorities, the benefits were clear: the system is up to 40 times quicker to deploy than sandbags, and it costs roughly the same amount. The NoFloods barriers are also more effective than sandbags, and they can be used again in future crises.

Globally, the economic cost of natural disasters is around $520 billion. The prudence of encouraging and investing in environmentally sound technologies to promote climate resilience is becoming clearer and clearer. UN Environment’s Environment and Trade Hub works with governments around the world to help them identify opportunities for trade in environmental goods and services, open up trade in environmental goods and services, and encourage the diffusion of environmentally sound technologies.

“We know that resilience-building is a key focus of many of our government partners. We believe that trade is key to diffusing the technologies that will help vulnerable countries build their climate resilience,” says Anja von Moltke, head of the Environment and Trade Hub. “Encouraging this sort of innovation also helps to create fair, green jobs and build prosperity.”

Based on the system’s success in managing the floods of 2014, the French Ministry of the Interior has invested in 10km of NoFloods barriers, and the system has been sold globally in five other countries. By reducing unnecessary trade barriers, the provision of and access to vital goods and services, including adaption technologies like NoFloods barriers, can be improved, thus enhancing countries’ ability to build resilience and respond to the effects of climate change.

UN Environment

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Climate change could spark floods in world’s largest desert lake

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UNEP/Duncan Moore / 19 Jul 2021

For years it appeared as though Lake Turkana, which sits in an arid part of northern Kenya, was drying up.

Its main river inflows had been muffled by dams and many feared water levels were poised to drop by two-thirds, causing the lake to cleave into two smaller bodies of water. It was, one report said, an African “Aral Sea disaster in the making” – where only 10 per cent remains of the original sea.

But a new study from the United Nations Environment Programme (UNEP) predicts a far wetter future for Lake Turkana – and possibly a more perilous one for the 15 million people who live on its shores.

The report found that over the next 20 years, climate change could likely lead to heavier rains over Lake Turkana’s river inflows, which would raise water levels in the lake itself and increase the likelihood of severe flooding.

The study urged officials in Kenya and Ethiopia, which both border Lake Turkana, to prepare for a future in which once-rare floods, such as those that hit the region in 2019 and 2020, are regular occurrences.

“Many people think that climate change is a problem for the future,” says Frank Turyatunga, Deputy Head of UNEP’s Africa Office. “But as Lake Turkana shows, it’s happening now and it’s already forcing people to adapt to new conditions.”

Lake Turkana, the world’s largest desert lake, is part of the Omo-Turkana basin, which stretches into four countries: Ethiopia, Kenya, South Sudan and Uganda. The basin is home to many rare plants and animals.

Since 1988, Ethiopia has built a series of hydroelectric dams on its main tributary, the Omo River, leading to predictions of Lake Turkana’s demise.

Climate projections

Using sophisticated water resources modelling and climate change scenario analysis, the new UNEP report found that up to eight human settlements around the lake could be inundated by flooding periodically. While severe, abrupt flooding has been rare, climate change projections foresee this becoming more regular and impacting more people if adaptation measures are not put in place.

The report called for improved international cooperation and adaptation measures, including reforestation, agroforestry and avoiding construction in areas at risk of flooding.

“In the last two years, rising water levels in Lake Turkana have damaged pastureland, inundated buildings and forced people to flee their homes,” says Tito Ochieng, Director of Water in Kenya’s Turkana County. ”But there is still a mindset in Kenya that lake water levels are constantly falling, which makes planning difficult.”

The study also found evidence of rising water levels in the eight lakes that line Kenya’s Rift Valley. Severe flooding in those lakes in 2019 and 2020 damaged homes and infrastructure – and even reportedly led to a spike in deadly crocodile attacks.

Africa stands out disproportionately as the most vulnerable region in the world to climate change. This vulnerability is driven by the prevailing low levels of socioeconomic growth in the continent. While climate change is global, the poor are disproportionately vulnerable to its effects.

UNEP’s climate change work in Africa supports countries to implement their climate action commitments – Nationally Determined Contributions (NDCs) – to meet food security, create income and opportunities for youth, and economic expansion.

Regional cooperation

The report was part of a wider project designed to accelerate cooperation in the border areas between Ethiopia, Kenya and Somalia.

The project also developed an open-source information portal on the basin, based in part on satellite imagery. It contains data on land cover, water quality and soil moisture, and examines the various climate change scenarios.

The report follows the launch of the UN Decade on Ecosystem Restoration 2021-2030, a global push to revive natural spaces. It is also part of UNEP’s wider work to monitor and restore freshwater ecosystems worldwide, supporting Sustainable Development Goal 6.

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Six things you can do to bring back mangroves

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Don’t be fooled by their modest appearance: mangroves are important players in some of the greatest challenges facing the world today. They provide a defense between land and sea, absorb carbon, contribute to economic and food security, and are home to some of the most rare and colourful species.

But mangroves are disappearing at an accelerating rate.In some areas of the Western Indian Ocean region – one of the two most important global mangrove hotspots, together with Southeast Asia – more than 80 per cent of mangroves have already been lost.

The United Nations (UN) Decade on Ecosystem Restoration is a global rallying cry to change our relationship with nature – from degradation to restoration. Here are six things you can do to start bringing back mangroves today.

1. Understand the importance of mangroves.

Only with healthy ecosystems can we enhance people’s livelihoods, counteract climate change, and stop the collapse of biodiversity.

UNEP research shows that mangrove ecosystems underpin global and local economies, by supporting fisheries, providing other food sources and protecting coastlines. In fact, every hectare of mangrove forest represents an estimated US$33–57,000 per year.  

They’re also important protectors – sheltering land and coastal communities from storms, tsunamis, rising sea levels and erosion. And with the world at risk of a temperature rise of over 3°C this century, mangroves are also an invaluable ally in the race to adapt. They extract up to five times more carbon from the atmosphere than forests on land, and protecting mangroves is 1000 times less expensive, per kilometer, than building seawalls.

Learn more about mangrove ecosystems in this short video; and their role in climate change adaptation in this animation.

2. Understand what is driving their loss.

Home to forty per cent of the world’s population, coastlines are among the most densely-populated areas on Earth. Consequent development of coastlines – clearing mangrove forests to create space for buildings, and to farm fish and shrimp – is the main driver of mangrove loss. Worldwide, this has caused the loss of 20 per cent of mangrove ecosystems. 

Pollution also plays a role. Because they form a protective line between coasts and ocean, mangroves are effectively a “plastic trap”. When plastic bags and litter cover roots and sediment layers, it can starve mangroves of oxygen; and can harm sea animals.

3. Make sustainable choices.

The choices we make are a powerful way to express our values and to affect consumption and demand. Ask questions about the food you consume; choose foods that are sustainably sourced; say no to single-use plastic and reduce consumption in general.   

Learn more about what you can do through the UN Environment Programme (UNEP) Clean Seas campaign, and see examples of restoration supportive choices in the Ecosystem Restoration Playbook.

4. Learn how restoration works.

Before planting new mangroves, it is important to understand the cause of forest degradation or disappearance. In the case of pollution, over-harvesting or other causes that can be eliminated, mangroves can recover naturally.

When recovery requires human intervention, it is important to follow key steps, like involving local communities, selecting native seedlings and establishing a functioning nursery. To learn more, see UNEP’s Guidelines on Mangrove Ecosystem Restoration, which elaborate each step of the process.

5. Be an advocate and an activist.

Whoever you are, wherever you are, you can begin to take action today. Discuss the importance of mangroves with your friends, family, colleagues and networks. Share information, images and ideas that inspire you.

If you’re not sure where to start, find inspiration in what others are doing. In Kenya and Madagascar, communities have recognized the contribution of mangroves to their own livelihoods and are actively participating in carbon monitoring, reforestation and education to prevent exploitation and ensure the livelihoods of future generations.

To get ideas about actions that could be right for you, play this game; and go to the UN Decade for Ecosystem Restoration Implementers Hub to find out how others are taking the lead in this work.

6. Make some noise.

Despite the scale of the challenge, there are solutions; and some governments are already taking action. Cuba, Haiti, Puerto Rico and the Dominican Republic have prioritized mangrove restoration through the Caribbean Biological Corridor initiative; and in Cuba, mangrove forests still cover 70 per cent of the coastline. Pakistan has committed to planting 10 billion trees by 2023 in an initiative led by Prime Minister Imran Khan and supported by UNEP, and millions – if not billions – of these trees will be mangroves. Restoration pledges from other countries can be found here.

UN Environment

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Oil, acid, plastic: Inside the shipping disaster gripping Sri Lanka

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Fires crews attempt to put out the fire onboard the X-Press Pearl. The ship would burn for two weeks before finally sinking. Photo: Unsplash/Nilantha Ilangamuwa

It’s visible in satellite images from just off Sri Lanka’s coast: a thin grey film that snakes three kilometres out to sea before disappearing into the waves.

This, experts say, is fuel oil leaking from the X-Press Pearl, a Singapore-flagged cargo ship that caught fire and sank off Sri Lanka’s western coast last month.

The slick is a visceral reminder of what observers say is a slow-motion environmental disaster – one of the worst in the country’s history – and of the mammoth effort that will be needed to clean it up.

“This is the biggest environmental catastrophe to hit Sri Lanka since the 2004 Indian Ocean Tsunami,” said Thummarukudyil Muraleedharan, the acting head of the disasters and conflicts branch with the United Nations Environment Programme (UNEP).

Thummarukudyil is among more than a half-dozen UNEP experts advising Sri Lanka’s government on how to contain the toxic fallout from the X-Press Pearl, which was carrying 81 containers of dangerous goods when it sank in June, according to its owner, X-Press Feeders. The ship’s cargo included 25 tonnes of nitric acid, 348 tonnes of oil and, according to independent estimates, up to 75 billion small plastic pellets known as nurdles that has created a pollution crisis—one that could plague Sri Lanka for years.

“This is a toxic ship,” said Hemantha Withanage, Executive Director of Sri Lanka’s Centre for Environmental Justice, an advocacy group. “This will be a long-running disaster.”

Fire down below

Crew members first noticed smoke coming from the X-Press Pearl’s hold on 20 May while the ship was anchored off Colombo, Sri Lanka’s capital. Over the next two weeks, fire crews battled a raging inferno punctuated by at least two major explosions. As the ship slowly sunk—it would be 17 June before it settled on the seabed—strong currents scooped up shipping containers and sprinkled them along Sri Lanka’s coast.

One container surfaced more than 100 kilometres south of the wreck, coating prime tourist beaches near the southwestern resort town of Galle with nurdles.

“It was like a cluster bomb,” said Hassan Partow, part of UNEP’s disaster response team.

Plastic pollution

For Sri Lankans, the small plastic pellets, which are about the size of a lentil, have been the most visible sign of the X-Press Pearl sinking.

Using publicly available data, Withanage estimates the ship contained 70-75 billion individual pellets. Partow said the disaster is the single-largest release of nurdles into the ocean ever reported.

The plastic has flooded onto beaches around Colombo. One, Sarukkuwa, was blanketed in meter-deep piles of plastic. The nurdles also turned up in the gills and guts of fish. Local fishers, who have been barred from the rich fishing grounds around Colombo, have blamed the nurdles for killing sea life, though that claim is still being investigated by Sri Lanka scientists. Withanage said pellets have also been found in a turtle sanctuary 300km north of Colombo.

Over time the pellets, which will take up to 1,000 years to disintegrate, may build up in the food chain, sickening fish and potentially humans, Withanage said. “When it comes to the environment, every plastic nurdle is a disaster.”

Making matters worse, many of the pellets were charred, causing them to crumble into a potentially toxic powder when disturbed.

“These weren’t just virgin pellets,” said Partow. “Around half were combusted, so the jury is out about their toxicity.”

In the immediate aftermath of the X-Press Pearl sinking, hundreds of Sri Lankan navy, air force and coast guard members were deployed in a massive clean-up operation overseen by the Marine Environment Protection Authority.  Working around the clock under strict COVID-19 lockdown restrictions, they have so far collected more than 53,000 bags of pellets, burnt plastic and other debris mixed with sand. The small size of the plastic pellets means that many had to be hand sieved.

There is no way, though, to clean plastic pellets still in the ocean.

“What is in the sea could be there for a long time,” said Thummarukudyil.

A toxic brew

It also appears likely that at least some of the highly corrosive nitric acid aboard the X-Press Pearl seeped into the ocean. Experts are worried it may have scalded sea life at a nearby coral reef. Sri Lanka’s government has recovered turtle carcases that show signs of burns, though Partow said scientists are still examining the animals and that it was too early to determine what had killed them.

While the nitric acid has likely dissipated into the ocean, concerns have now turned to another toxic chemical carried by the X-Press Pearl: epoxy resin. Around 9,800 metric tonnes of epoxy was aboard and experts worry that if it was in toxic liquid form—as opposed to solid form—that it could spread along the Sri Lankan coast.

The ship also contained a witches’ brew of other chemicals, including methanol, gear oil, brake fluid and urea, along with lead, copper and lithium batteries, according to Withanage.

The question of oil

Exactly how much toxic material remains in the ship’s hold or in containers on the ocean floor remains unknown. Sri Lanka’s annual monsoon, coupled with a country-wide COVID-19 lockdown, has hampered salvage efforts.

The ship’s owner, X-Press Feeders, said much of the cargo could have been incinerated in the fire, including the black, molasses-like fuel that powered the X-Press Pearl. But the UN team thinks that even if the oil was burnt it is unlikely to have evaporated. Instead, it would probably be transformed into a more viscous mixture.

“We should assume the oil is still there,” said Thummarukudyil. The ship, he added, was carrying enough oil to blanket Sri Lanka’s entire western coast. “The potential is there for this to be a lot worse than what we’ve already seen.”

Disaster response 

The UNEP staff working on the X-Press Pearl sinking are part of a disaster response unit jointly run by the United Nations Office for the Coordination of Humanitarian Affairs (OCHA).  The unit has helped broker an agreement between the Sri Lankan government and the X-Press Pearl’s owner to contain a potential offshore oil spill as well as clean-up the shoreline. Specialized equipment, including inflatable booms designed to trap oil, arrived in Colombo on 2 July.

“The United Nations is supporting the Government of Sri Lanka to address the disaster of the MV X-Press Pearl,” said UN Resident Coordinator in Sri Lanka Hanaa Singer-Hamdy. “We are coordinating international efforts and mobilizing partners to ensure a cohesive and coherent response to the crisis (and) ensure prevention of such disasters in the future.”

UNEP has called for the ship’s owner and insurer to hash out what Partow called a “peer-reviewed, government-approved” road map for removing the X-Press Pearl and the stray containers on the ocean floor, saying they constitute the most immediate risk of pollution.

“This plan needs to be developed now so that when the conditions allow, the ship can be removed and properly decommissioned,” said Partow.

Sri Lanka’s government is also pushing the ship’s owners and insurers to refloat the X-Press Pearl.

“The Sri Lankan government is deeply concerned about its environment and the livelihood of the vulnerable fishing communities,” said Dharshani Lahandapura, Chairperson of Sri Lanka’s Marine Environment Protection Authority. “The foremost thing that the owners and salvors, caretakers and wreck removers have to do is remove the wreckage, underwater containers and debris as soon as possible.”

For Withanage, time is of the essence. “It is a business for them,” he said of the salvage company hired to raise the ship and the vessel’s owners. “But it is our environment. As long as the ship is there contamination is there.”

UNEP will deliver a final report on the disaster to Sri Lanka’s government next week. It will contain recommendations for the clean-up and suggestions for how Sri Lanka, a country vying to become a major shipping hub, can handle future maritime disasters. Partow said UNEP will also stand by to advise Sri Lanka on longer-term environmental monitoring.

Ghostly scene

Today, the ship sits largely submerged in 21 metres of water, its castle and a few charred cranes poking up over the waves. A caretaker ship circles it 24 hours a day, keeping tabs on the oil leak.

Partow, who toured the wreck by boat and in a helicopter, saw plastic pellets mixed with oil bobbing in the waves around the vessel. Brown patches of oil surrounded by a grey sheen stretched two to three kilometres out into the sea.

He described the 186-metre-long ship, which entered service in February, as a “write off.”

Thummarukudyil has spent 18 years responding to oil spills around the world. When asked if the X-Press Pearl was the worst maritime ecological disaster he’d seen, he paused.

“There are lots of chemicals still sitting there,” he said. “This story is not yet over.”

UN Environment

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