The truth behind stolen beaches and dredged islands
Paradise is a beach, we are told. Pristine white or coral pink. We leaf through brochures in search of perfect sand. There is a Paradise Beach on Barbados, and in Croatia, and Thailand, and South Africa, too. In every tourist-hungry part of the globe, in fact. The naturalist Desmond Morris believes that, as descendants of water-loving apes, we are hard-wired to seek out these places, lulled by the rhythmic advance and retreat of the ocean as we soak up the sun, sand grains trickling through our workless fingers.
And so much to go around. Man has always used sand as an analogy for the infinite, a limitless resource, ordinary and yet magical, incapable of exhaustion. When astronomers seek to impress upon us the size of the universe, they speak of stars being more numerous than grains of sand. There are quite a few grains, as it happens – 7.5 x 10 to the 18th power, according to researchers at the University of Hawaii. That’s 7 quintillion, 500 quadrillion – give or take the odd trillion.
Yet sand in the right places is anything but infinite. Our insatiable appetite for new buildings, roads, coastal defences, glass, fracking, even electronics, threatens the places we are designed by evolution to love most. The world consumes between 30 and 40bn tonnes of building aggregate a year, and half of this is sand. Enough material to build a wall 27m high and 27m wide around the equator. Sand is second only to water as a natural material extracted by humans, and our society is built on it, quite literally. Global production has risen by a quarter in just five years, fuelled by the insatiable demands of China and India for housing and infrastructure. Of the 15 to 20bn tonnes used annually, about half goes into concrete. Our need for concrete is such that we make almost 2 cubic metres worth each year for every man, woman and child on the planet.
But what of those oceans of sand stretching from the Atlantic to the Persian Gulf – the Sahara and the Arabian Desert? The wrong kind of sand, unfortunately. Wind action in deserts results in rounded grains that are too smooth and too small to bind well in concrete. Builders like angular sand of the kind found on riverbeds. Sand, sand everywhere, nor any grain to use, to paraphrase Coleridge. A textbook example is the Burj Khalifa in Dubai, the world’s tallest skyscraper. Despite being surrounded by sand, it was constructed with concrete incorporating the “right kind of sand” from Australia.
Riverbed sand is prized, being of the correct gritty texture and purity, washed clean by running fresh water. Marine sand from the seabed is also used in increasing quantities, but it must be cleansed of salt to avoid metal corrosion in buildings. It all comes at a cost.
China leads the charge in today’s sand-fuelled construction boom, consuming half the world’s supply of concrete. Between 2011 and 2014 it used more concrete than the United States did in the entire 20th century. Aggregate is the main ingredient for roads, and China laid down 146,000km of new highway in a single year. By 2050, two-thirds of humanity will live in urban areas, a product of migration and population growth. The population of India, second only to China in its hunger for concrete, is expected to grow from 1.32bn to 1.7bn by the middle of the century. Mumbai, India’s commercial capital, is one of the world’s top 10 mega-cities, with a population of 22m. China and India rely largely on national supplies of sand – to minimise transport costs – but as the skyscrapers rise in Shanghai and Mumbai so does the price of this once-humble ingredient. China’s hunger for sand is insatiable, its biggest dredging site at Lake Poyang produces 989,000 tonnes per day.
International trade in sand is rising as local supply outstrips demand. The destruction of habitats vital to fish, crocodiles, turtles and other forms of riverine and marine life accompanies the destruction of sand barriers and coral reefs protecting coastal communities, as in Sri Lanka. Sand extraction lowers the water table and pollutes drinking water, as in the Mekong Delta of Vietnam, while stagnant pools created by extraction on land foster malaria.
No one knows how much damage is being done to the environment because sand extraction is a largely hidden threat, under-researched and often happening in isolated places. “We are addicted to sand but don’t know it because we don’t buy it as individuals,” says Aurora Torres, a Spanish ecologist who is studying the effects of global sand extraction at Germany’s Centre for Integrative Biodiversity Research. “Extraction has grown strongly over the past four decades and has accelerated since 2000. Urban development is putting more and more strain on limited accessible deposits, causing conflict around the world. Sand dredging degrades corals, seaweeds and seagrass meadows and is a driver of biodiversity loss, threatening species already on the verge of extinction. Our consumption of sand is outstripping our understanding of its environmental and social effects.”
Why buy expensive sand from a legal mine when you can suck up a riverbed? Or nick a beach? Or an entire island?
Sand accounted for 85% of the total weight of mined material in 2014, yet it is replenished by rock erosion only over thousands of years. Booming demand means scarcity, scarcity means money and money means criminality. Globally, sand extraction is estimated to be worth £50bn per year, a cubic metre of sand selling for as much as £62 in areas of high demand and scarce supply. This makes it vulnerable to illegal exploitation, particularly in the developing world. Why buy expensive sand, sourced from licensed mines, when you can anchor your dredger in some remote estuary, blast the sand out of the riverbed with a water jet and suck it up? Or steal a beach? Or dismantle an entire island? Or whole groups of islands? This is what the “Sand Mafias” do. Criminal enterprises, their illegal mining operations in Asia, Africa and elsewhere, are protected by officials and police paid to look the other way – and powerful customers in the construction industry who prefer not to ask too many questions.
From Jamaica to Morocco to India and Indonesia, the sand mafias ruin habitats, remove whole beaches by truck in a single night and pollute farmlands and fishing grounds. Those who get in their way – environmentalists, journalists or honest policemen – face intimidation, injury and even death. “It’s very attractive for these sand mafias,” says Torres, who is one of the few academics studying this Cinderella issue – overshadowed as it is by climate change, plastic pollution and other environmental threats. “Sand has become very profitable in a short time, which makes for a healthy black market.”
Reporting on this illegal trade can get you killed in India. In March this year, Sandeep Sharma, a reporter with a local television station, was mown down by a sand truck after filming a police officer accepting a bribe in return for turning a blind eye to sand mining in a crocodile sanctuary. Last month, a special branch constable in Tamil Nadu also paid with his life for gathering intelligence at an illegal mining site. Mumbai environmentalist Sumaira Abdulali is India’s foremost campaigner against illegal sand mining, a distinction that led to an attempt on her life in 2010. “The problem extends even to tourist beaches in Goa, Kerala and elsewhere,” she says. “Most people are afraid to complain – even government officials and police officers are afraid to approach illegal sites. Murders, threats and acts of intimidation between them probably number in the hundreds.”
In southeast Asia, sand is a crucial ingredient in geopolitics. China’s imperial ambitions in the South China Sea are being furthered by the construction with sand of artificial islands hosting military bases intended to reinforce its claims in the region. This novel form of territorial expansion is also being pursued by rich but tiny Singapore, resulting in conflict with its bigger neighbours. The population of the city state has more than trebled to 6m since independence from Britain in 1963, resulting in a literal land grab. The world’s biggest importer of sand, Singapore has contrived a 20% increase in its land area using sand sourced from Indonesia, Malaysia, Cambodia and Thailand, much of it illegally. In 2008, it claimed to have imported only 3m tonnes of sand from Malaysia, but the real figure, according to the Malaysian government, was 133m tonnes, almost all of it smuggled, allegedly. As Singapore grows so its vast neighbour Indonesia shrinks. Illegal sand extraction threatens the very existence of some 80 small low-lying Indonesian islands bordering Singapore, playing havoc with marine ecology.
Singapore is the world’s biggest importer of sand, increasing its size by 20% using sand from Indonesia, Malaysia, Cambodia and Thailand.
Given the vast forces at work, the incomes and even lives of small farmers and fishermen in sand-rich areas are considered expendable. Bhaskar Rao Patil has never known wealth but the waters he fishes once provided enough to meet the modest needs of his family. Now they are barren, ruined by sand dredging. Patil lives in Bankot, a small coastal fishing town some 200km south of Mumbai. Across the estuary of the Savitri River, his nemesis is hard at work: a sand dredger, sucking up the bed of the river before depositing its “catch” in barges which then discharge their cargo into dumper trucks destined for Mumbai. Sought-after fish caught at the rate of 50 an hour in good times now number just five a day. A fishing boat of the kind he uses once supported five families; now it is two.
“The only time we think about sand is on a beach holiday, but our lives are built on it,” says London-based Indian researcher Kiran Pereira, who has interviewed many people affected by rapacious sand mafias. Their accounts are published on her website, sandstories.org. “In some cases, people initially welcome sand mining because it creates jobs,” she says. “But once they see the effects it is too late to change.” The fishermen of western India must collude in the destruction of their fast-disappearing world. Around Mumbai, some 80,000 of them have changed their catch from fish to sand, so spoiled are their fishing grounds and so high is the demand for this basic material.
Sand extraction is a developed world problem, too. In the US, sand mining for fracking has despoiled areas of Wisconsin, provoking protests from local people. And in the UK, Friends of the Earth has been fighting a long battle to curb sand dredging on Lough Neagh in Northern Ireland, one of Europe’s most important wetlands. Some 1.7m tonnes of sand are sucked up each year by dredging companies, despite the lake, the largest in the British Isles, being a protected area under domestic and European law. Friends of the Earth claim the local bird population has declined by more than 75% in the past 30 years, and fish habitats have been harmed by worsening water quality. “Despite rich layers of protection, the government has for decades turned a blind eye to the scouring of the bed of our biggest nature reserve,” says James Orr, director of Friends of the Earth in Northern Ireland. “It is a Klondyke on Lough Neagh.”
The British love affair with the seaside encourages this unnatural practice
The demands of the construction industry are not the only problem, however. Around the world, the natural coastline is threatened by other forms of human interference. “Most natural sand beaches are disappearing, partly due to rising sea levels and increased storm action, but also to massive erosion caused by development of the shore,” says Andrew Cooper, professor of coastal studies at the University of Ulster and co-author of The Last Beach. The building of sea defences and so-called “beach nourishment” (dumping fresh sand on tourist beaches to combat erosion) store up trouble for the future, he says, disrupting the natural movement of waves and sand along the shore.
“Beach nourishment is not a panacea for coastal erosion,” says Cooper. “It is, like a seawall, a means of holding a naturally mobile coast in place. And, like a seawall, it requires ongoing maintenance. Beach nourishment causes damage in the source area, killing all that goes into the dredger, before smothering and killing most things on the beach where it is placed. The beach it creates may serve as a recreational platform, but many studies have shown that nourished beaches are very poor substitutes for the natural ecosystems they replace.”
Yet the British love affair with the seaside, sustained by memories of idyllic bucket-and-spade holidays in youth, encourages this unnatural practice. In 2006, Lyme Regis turned to France for sand to replace that washed away by the constant motion of the English Channel, the Dorsetshire resort’s burghers justifying the expense by claiming that Gallic sand grains were less easily washed away than Anglo-Saxon ones. More sand (English this time) was needed in Dorsetshire to rebuild beaches washed away by the vicious storms of January 2014. Bournemouth, meanwhile, has opted for cosmetic surgery to maintain its appeal, spending £3.6m to dump 320,000 cubic metres of supposedly “perfect” sand, sourced locally, on to its denuded beaches.
Of course, you can always steal sand to nourish your beach, rather than buy it. In 2008, at Coral Spring on the north coast of Jamaica, 500 truck-loads of pristine sand was spirited away in a single night, never to be seen again. And when sand was required last year for a new resort in the Canary Islands it was imported (illegally, say environmentalists) from Western Sahara, the former Spanish colony now occupied by Morocco. Sand looted from beaches and riverbeds in the disputed territory is shipped north to Morocco for construction and to nourish the kingdom’s tourist beaches. “Beach nourishment is like a sticking plaster,” says Cooper. “It does not remove the underlying reasons for erosion. Worse, it provides a false sense of security. In future, as sea levels rise, it will demand bigger and bigger volumes of sand to be effective.”
If the natural coastline, with its inconvenient shingle, its messy flotsam and jetsam, its sheer reality, does not suit, one can always visit a pop-up beach. These ersatz paradises spring up each year in major cities, created with sand imported by lorry. In London, a fiver will buy you access to “Fulham Beach” this summer, and “Hampstead Beach” is free. Brent Cross shopping centre may not be a contender for Condé Nast Traveller’s top 10 beach settings, but you can sun yourself there on imported sand until September. Landlocked Birmingham, meanwhile, boasts access to several urban and pop-up beaches, including the “Costa del Solihull”.
Our demand for sand appears ever more insatiable. Can rampant sand extraction be curbed? A win-win solution is the use of waste plastic in making concrete. Research suggests small particles of plastic waste – “plastic sand” – can replace 10% of the natural sand in concrete, saving at least 800m tonnes per year. Another solution is more intelligent design: concrete structures are often over-engineered, incorporating beams that are thicker than necessary. A team at Cambridge University is using computer modelling to size concrete more efficiently and cut waste.
Aurora Torres warns that such measures will not eliminate the continuing need for sand mining on a vast scale and that stricter monitoring and enforcement in the developing world are required. “This is a hidden ecological disaster in the making,” she says. “We will be hearing a lot more about sand in the coming years.”
The Chinese construction company China Roads and Bridge Corporation (CRBC) operating under their parent company CCCC (China Communication and Construction Corporation - the state-corporation commandeered by China's Communist Party governance) was stopped only after a lengthy legal battle to dredge sand off Kenya's world famous beaches at the southern coast around Diani and to take it abroad with huge barges. While the Kenya Government and its National Environmental Management Authority (NEMA) appeared as conspirators, civil society and the independent judiciary finally stopped the rape and plunder of Kenya's natural environment and resources.
Sand mining 'mafias' destroying environment, livelihoods: U.N.
By Rina Chandran - 07. May 2019
BANGKOK (Thomson Reuters Foundation) - Sand mining is eroding the world’s river deltas and coastlines, damaging the environment and hurting livelihoods from Cambodia to Colombia, as government regulation fails to keep pace with rising demand, the United Nations warned on Tuesday.
Global demand for sand and gravel, used extensively in construction, is about 50 billion tonnes or an average of 18 kg (40 lb) per person per day, according to a report published by the UN Environment Programme (UNEP).
Extraction in rivers and beaches has increased pollution and flooding, lowered groundwater levels, hurt marine life, and exacerbated the occurrence and severity of landslides and drought, it said.
“We are spending our sand ‘budget’ faster than we can produce it responsibly,” Joyce Msuya, UNEP’s acting executive director, said in a statement.
“For one of the most traded commodities on the planet, it is one of the least regulated activities, and there is very low general awareness about extraction impacts.”
Growing populations, increasing urbanization, land reclamation projects, and rapid infrastructure development in countries such as China and India have increased demand for sand three-fold over the last two decades, the UNEP said.
Meanwhile, damming of rivers and excessive extraction have reduced the sediment carried by rivers to coastal areas, leading to reduced deposits in river deltas and faster beach erosion.
“Communities in the Asian deltas are the biggest losers, with the combined effect of sand mining, hydropower dams and groundwater extraction causing large areas of land to sink and shrink,” said Marc Goichot at the Worldwide Fund for Nature.
“But as long as demand for sand remains high and no alternative sourcing is available, enforcement is close to impossible, as the economy is based on sand,” said Goichot, a water expert who contributed to the UNEP report.
Current legal frameworks are not sufficient, and “sand mafias” comprising builders, businessmen and dealers in countries such as Cambodia, Vietnam, India, Kenya and Sierra Leone regularly flout existing laws, said the UNEP.
The science to support responsible consumption and extraction is lagging, it said, adding that new technologies and materials that can substitute or limit the use of traditional concrete are growing in use, but still limited.
In India, a 2017 Thomson Reuters Foundation investigation revealed that workers were drowning while illegally mining sand in some parts of the country.
While awareness of the impacts of sand mining have grown, and more laws are in place, greater efforts are needed to map supply and demand for effective regulation, said Sumaira Abdulali of environmental advocacy group Awaaz Foundation.
“Communities are losing their land and their homes because of sand mining, but they are split over the issue because some people make a living from it, while others say it is ruining their lives,” she told the Thomson Reuters Foundation.
“Sand is too plain, too ubiquitous to get the sort of attention that illegally mined diamonds have. But it deserves just as much attention, because its impact is so tremendous.”
Reporting by Rina Chandran @rinachandran; Editing by Michael Taylor. Please credit the Thomson Reuters Foundation, the charitable arm of Thomson Reuters, that covers humanitarian news, women's and LGBT+ rights, human trafficking, property rights, and climate change. Visit https://news.trust.org
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How the scramble for sand is destroying the Mekong
By Beth Timmins - 19. December 2019
A crisis is engulfing the Mekong River, its banks are collapsing and half a million people are at risk of losing their homes.
The entire ecosystem of this South East Asian river is under threat, all because of the world's insatiable demand for sand.
Extracted from the bed of this giant river in Cambodia and Vietnam, sand is one of the Earth's most sought-after resources. Up to 50 billion tonnes are dredged globally every year - the largest extractive industry on the planet.
"Extraction is happening at absolutely astronomical rates, we're having an industrial-scale transformation of the shape of the planet," says river scientist Prof Stephen Darby at Southampton University.
His studies on the lower Mekong show its bed has been lowered by several metres in just a few years, over many hundreds of kilometres, all in the quest for sand.
From highways to hospitals, sand is the essential component for industries as varied as cosmetics, fertilisers and steel production - and particularly for cement.
In the last two decades demand has increased threefold, says the UN, fuelled by the race to build new towns and cities.
China consumed more sand between 2011 and 2013 than the US did in all of the 20th Century, as it urbanised its rural areas.
Sand is also used to bulk up landmass - Singapore is 20% bigger now than it was at the time of independence in 1965.
"Every year we extract enough sand to build a wall 27m (89ft) high and 27m wide, all the way around the world," says Pascal Peduzzi of the United Nations Environment Programme.
Not any old sand will do. Desert sand is too smooth and fine to make concrete. Nor is it the kind that is needed to make glass or be used in the electronic industry.
So that is why sand is sought from ancient deposits in quarries - static extraction - or through so-called dynamic extraction from the sea and rivers like the Mekong.
Mr Peduzzi says dynamic extraction can be particularly damaging: "The sand is part of the ecosystem and plays a vital role, which if lost effects biodiversity, erosion and increases salinisation."
According to conservation charity WWF and the Mekong River Commission, the bed of the two main channels of Mekong Delta lost 1.4m in elevation in the 10 years to 2008, and between two and three metres have been lost in elevation since 1990.
Research in Nature, published last month, says that the sand mining on one 20km (12.5 mile) stretch of the river is "non-sustainable" as it cannot be replaced fast enough by natural sediment from the river's upper reaches.
It is not just a threat to the humans. The Mekong supports the world's largest inland fishery, providing a food source for the 60 million people living in the catchment area. The WWF reckons 800 species of fish and one of the largest remaining populations of the endangered Irrawaddy dolphin, live there.
The Mekong is not the only place where the grab for sand is creating controversy. In Kenya and India for example, there have been violent clashes over the resource, which is consumed at a rate of 18kg for every person on the planet each day.
So is the world running out of sand? Mark Russell, director of the UK Mineral Products Association, says it is not so much about running out, but reliance on harder to find sand.
"While this is a global issue it is playing out at a local scale, it is a resource no one really thinks about," he says.
One way to tackle the issue is by looking at ways to use the world's abundant desert sand. Scientists from Imperial College London have taken smooth desert sand and developed a building material which they have called "Finite". It has the same strength as residential concrete, with half the carbon footprint, and unlike concrete it is biodegradable.
Constructions along Mekong riverbank at risk of collapsing due to excessive sand mining
Geo-environmental researchers have recently revealed that Mekong riverbanks, especially in Cambodia, are prone to collapsing due to the excessive sand mining driven by the high demand for sand in the construction sector.
According to the report by The Science Times, the research team from the University of Southampton discovered that sand mining is the leading cause of the Mekong riverbanks instability, which leads to the collapse and damage to infrastructure.
The same report also mentioned that among all the countries with Mekong riverbanks, Cambodia is one of the world’s major sand-bedded rivers with plenty of sand mining activities.
Through Sonar—a technique using sound propagation to detect objects under the surface of the water— the researchers identified that there are many big holes in the Mekong riverbed across different countries, which on average, are approximately 42 metres long and 8 metres deep. These big holes are assumed to be created by unsustainable sand mining.
Interestingly, the researchers also uncovered the volume of current sand extraction is between 5 and 9 times more than the rate in which the sand is replenished by the river’s natural processes, which can lead to a high risk of riverbank collapsing.
Through Terrestrial Laser Scanning (TLS), Dr Julian Leyland also confirmed that lowering the riverbed by only about two metres can cause many riverbanks to collapse. However, the current sand mining is recorded as more than 8 metres deep. According to him, this is significantly risky.
“It is clear that excessive sand mining is responsible for increased rates of bank erosion that local communities have been reporting for years,” said Dr Leyland in The Science Times.
Sand is the second most-consumed resource on the planet after water. Due to the boom of the construction sector, the production of concrete has increased exponentially, which increases demand for sand, which is mainly extracted from the Mekong riverbed.
Therefore, the scientists suggest that the governments of Mekong countries urgently come up with the proper policies or regulations to balance and control the excessive sand minding, to avoid the catastrophes caused by riverbank collapsing.