Tag Archives: invisible

Invisible highways: Undersea Cables Power 99% Of Global Internet Traffic, Despite Growing Risks

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The world’s digital economy depends heavily on a vast network of undersea cables stretching across the ocean floor, quietly carrying nearly all international internet traffic and enabling trillions of dollars in financial transactions every day.

Despite their central role in modern connectivity, these cables remain largely invisible to the public, even as governments and technology experts grow increasingly concerned about their security and resilience.

Tomas Lamanauskas, Deputy Secretary-General of the International Telecommunication Union (ITU), highlighted the importance of the infrastructure ahead of a global summit on submarine cable resilience in Porto, Portugal.

“About 99 per cent of the international internet traffic goes through submarine cables. Even the conversation you and I are having right now is carried through these cables,” he said in an interview with UN News.

Backbone Of The Digital Economy

While most people associate internet access with mobile networks, satellites or broadband connections, the global exchange of data actually relies on a complex system of fibre-optic cables lying hundreds of metres beneath the ocean surface.

These cables act as the “digital highways” of the modern world, linking continents and enabling the rapid movement of information across countries and markets.

Today more than 500 commercial submarine cables connect different parts of the world, carrying vast volumes of data every second. Together, they stretch across roughly 1.7 million kilometres of ocean floor, long enough to circle the Earth multiple times.

Though relatively thin, roughly the width of a garden hose, the cables transmit hundreds of terabits of information per second using fibre-optic technology.

A Technology With Deep Historical Roots

The idea of connecting nations through underwater cables dates back more than a century.

The first undersea telegraph cable was laid between England and France in 1850, marking the beginning of a technological transformation in global communications.

Over time, these systems evolved from telegraph lines to telephone networks and eventually to high-speed fibre-optic cables capable of transmitting massive volumes of digital data.

Before cables are installed, engineers survey the seabed to identify routes that minimise environmental impact and reduce the risk of damage. Specialised ships then deploy the cables, unrolling large reels onto the ocean floor.

Disruptions Can Have Global Impact

Because submarine cables form the backbone of international communications, any disruption can quickly affect economies, financial markets and essential services.

According to the ITU, between 150 and 200 cable incidents occur globally each year, averaging three to four disruptions every week.

Some of the most significant disruptions in recent years occurred in the Red Sea, where cable damage in 2024 interrupted roughly a quarter of data traffic flowing between Europe and Asia.

Outages can also be triggered by natural disasters such as earthquakes, underwater landslides or volcanic eruptions.

However, experts say human activity accounts for the majority of incidents. Around 80 percent of cable damage is caused by fishing trawlers or ship anchors dragging across the seabed.

Remote Regions Face Greater Risks

When cables fail, the consequences can be particularly severe for remote island nations and regions with limited connectivity.

Lamanauskas pointed to the Pacific island nation of Tonga as an example. Since 2019, the country has experienced three major internet disruptions linked to an earthquake, volcanic eruptions and accidental damage caused by ship anchoring.

In areas with only a single cable connection, even minor damage can leave entire populations without internet access for days or weeks.

“Imagine your entire community being offline for a week, unable to access digital healthcare, information or education,” he said.

Even small delays in data transmission can have significant economic consequences. For instance, a millisecond delay caused by cable congestion could affect financial trading systems in major global markets.

Repairs And Maintenance Challenges

Maintaining the vast network of undersea cables presents logistical challenges.

Some of the infrastructure installed during the early 2000s technology boom is now nearing the end of its typical 25-year lifespan, increasing the need for maintenance and replacement.

When a cable is damaged, engineers can usually identify the problem quickly using monitoring systems. However, the repair process often involves complex international coordination.

Obtaining permits and approvals from multiple jurisdictions can sometimes delay repair operations more than the technical work itself.

Depending on the location of the damage and the availability of specialised repair vessels, restoring a cable may take anywhere from several days to several months.

Global Efforts To Strengthen Cable Resilience

The growing dependence on digital connectivity has prompted governments and industry leaders to focus more closely on protecting submarine cables.

The International Telecommunication Union is working with countries and private companies to strengthen the resilience of the global network.

Its efforts include developing technical standards, improving coordination between countries and encouraging faster permitting processes for repairs.

The agency also promotes measures to prevent accidental damage and ensure that cable maintenance can be carried out more efficiently.

Lamanauskas said the rapid expansion of internet use continues to drive massive growth in cable capacity.

“Over the last 40 years, the capacity of these optical cables has been increasing by about 40 per cent every year,” he said, describing the growth as exponential.

As global demand for data continues to surge, strengthening the reliability and security of these underwater connections will remain a critical challenge for governments, businesses and international organisations alike.

‘Our work is largely invisible’: Journey from outer space to frontline aid worker

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Ahead of donning a beige WFP vest and boots to face hurricanes, wars and refugee camps, the Portuguese scientist worked with satellite imagery and cartography, creating maps to support humanitarian missions, until he realised he didn’t want to stay behind a computer screen.

On the occasion of World Humanitarian Day, marked annually on 19 August, Mr. Matos shared his story with UN News.

Pedro Matos joined the WFP response team following the deadly Cyclone Idai in Mozambique in 2019. (file)

From hurricanes to war

“At a certain point, it just wasn’t enough,” he recalled about his space engineering job. “I didn’t want to be making maps for other people to go and do humanitarian responses. I want to take those maps and be the one to do the responding.”

That’s exactly what he did. At WFP, he first developed maps on the ground and then went on to coordinate the agency’s emergency operations.

Since then, he has visited dozens of countries often at the epicentre of crises, from Hurricane Idai in Mozambique to the outbreak of war in Ukraine.

In 2018, Pedro Matos looks at the Kutupalong refugee camp where Rohingya refugees live. (file)

‘Like moving an entire government’

Coordinating in an emergency response is like “moving an entire government”, where each UN agency represents a “ministry” and the response only works when everyone comes together over the four essential areas in a crisis response: food, shelter, water and health.

Having just returned from a mission in Bangladesh, he described efforts to respond at Cox’s Bazar, the world’s largest refugee camp and home to 700,000 people who fled violence in Myanmar.

“We’ve been able to provide better conditions for people to live in this limbo with a little more comfort,” he said, also remembering his visit there in 2018 at the height of the crisis.

At the time, “a million people crossed the border in a month.” Today, although they remain in “limbo”, he pointed to improvements such as more monsoon-resistant homes and roads, gas stoves and reforestation.

Pedro Matos on board a humanitarian aid flight after Cyclone Idai in Mozambique. (file)

Heart-shredding challenges and profound rewards

The job has meant both challenges and rewards.

“We’ve also had a few instances where we’ve been kidnapped, or come under fire, but it’s not the things that happen to us that impact us the most,” he said. “It’s the things that happen to others that have the most impact.”

Hurricane Idai in Mozambique was a Category 5 hurricane that hit Beira in 2019 was one of the biggest and most intense crisis, but also most rewarding, he said.

“There’s this mix of something that was very intense and hard because we couldn’t reach everyone, but at the same time, the fact was that there were many people – tens or hundreds of thousands of people – who would have died if we hadn’t been there,” he said. “That was the most impactful response in my 17 years at the United Nations.”

When he was in Yemen, “we were bombed 20 times a day” in the capital, Sana’a, he said, adding that “there’s a strange normalcy” that develops.

“We find ourselves saying things like, ‘no, that wasn’t very far; it was only 500 metres from here,’” he said. “It’s something I never thought I’d think or say before doing this work.”

When reaching central Ukraine several weeks after Russia’s full-scale invasion in early 2022, he called the situation “very intense”. Within a week, he and his colleagues began distributing money to people coming from the frontlines.

We couldn’t reach everyone, but there were tens or hundreds of thousands of people who would have died if we hadn’t been there.

“When we interviewed people and asked them what they were doing with the money we gave them, it was very gratifying,” he said. “It was beautiful.”

Those who had been wounded in the war were using the money to buy painkillers. Others used it to pay for gas to escape the frontlines. One mother had been able to buy her daughter a scoop of ice cream for the first time since the war began.

“Her daughter was delighted,” he said. “There are very rewarding moments.”

Feeding millions every day

“We all think we know what the humanitarian or aid sector is,” Mr. Matos explained, adding that the scale during a crisis is much, much larger.

“I thought we’d be rehabilitating schools, feeding 100 people,” he continued. “I never imagined I’d be feeding 13 million people a day in Yemen. The scale is absolutely incredible.”

However, humanitarian work is often seen as a separate job, he said. Almost every profession that exists in private and government sectors also exists in an aid landscape, from lawyers, those who work in procurement, like in supermarkets, and human resources.

“I basically do the same work as social workers or firefighters,” he said. “They do it here every day, and I do it elsewhere. But, our work is in the same field and very similar.”

A toddler eats a food supplement, as part of WFP’s nutrition programme, in Mokha, Taiz, in Yemen.

The value of a Nobel Prize

WFP was awarded the Nobel Peace Prize in 2020, a recognition that Mr. Matos received with humility.

“Our work is largely invisible, despite feeding 120 million people every day,” he said. “It gave us a platform to raise awareness about crises like Congo, Myanmar, Sudan and Gaza, which often go unnoticed.”

Our work is largely invisible, despite feeding 120 million people every day.

He said his job is to give voice to the voiceless when crises fade from news headlines. Despite the difficulties and risks across his career, Mr. Matos has no doubt about the most important lesson he learned.

“People are essentially good,” he said. “When faced with the imminence of tragedy, people are fundamentally good and want to help others, even if that other person is very different. It was good to realise this because it’s not always obvious when we’re far from these crises.”

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Landlocked nations ‘invisible to much of the world’: UN trade and development chief

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At a major UN conference underway this week in Awaza, Turkmenistan, calls are growing to tackle the high trade costs, investment gaps and growing digital divide that continue to hold these countries back.

Despite progress in some areas, landlocked developing nations – from Bolivia to Bhutan and Burkina Faso – account for just 1.2 per cent of global exports, even though they represent over seven per cent of the world’s countries. Their populations face some of the highest levels of poverty, food insecurity and economic vulnerability anywhere.

“These countries are invisible to much of the world,” not able to draw the attention needed to their unique challenges, said Rebeca Grynspan Secretary-General of the UN trade and development body, UNCTAD, speaking to UN News on the margins of the third UN Conference on Landlocked Developing Countries (LLDC3).

Without international attention and coordinated action, they will remain stuck in structural limbo, she emphasised.

High costs, low returns

One of the most persistent challenges they face is geography itself.

Without direct access to seaports, they must rely on neighbouring transit countries to move goods – often through outdated or inefficient infrastructure.

This translates into trade costs that are, on average, 1.4 times higher than those of coastal countries, according to UNCTAD. In some cases, export procedures can stretch into weeks or months due to border delays, fragmented regulations and limited digital systems.

Ms. Grynspan highlighted that in customs procedures, digital tools can cut waiting times at borders from three days to three hours. To that end, regional agreements and digital initiatives have emerged as lifelines.

UNCTAD head Rebeca Grynspan speaking to UN News.

One standout example is the Framework Agreement on Facilitation of Cross-Border Paperless Trade, championed by the UN Economic and Social Commission for Asia and the Pacific (ESCAP). Now in force among several Asia-Pacific countries, it helps reduce paperwork, automate customs and harmonise standards, making processes faster, cheaper and more transparent.

Paperless trade also has the potential to reduce corruption and ease language-related challenges.

ESCAP estimates that implementing cross-border paperless trade measures could reduce trade costs by up to 30 per cent for countries in the region without direct sea access and increase export potential for the whole of Asia and the Pacific by nearly $260 billion.

Infrastructure and integration

Even when goods reach border crossings, weak domestic transport networks further slow trade down. Roads and railways are often underdeveloped, underfunded or vulnerable to climate shocks.

“Regional infrastructure – like the African North Corridor – is crucial,” Ms. Grynspan said, citing examples where wait times at borders have dropped by more than 150 per cent due to corridor investment and coordination.

But infrastructure alone is not enough – it must be paired with digital systems and strong regional partnerships.

“For landlocked countries, regional integration is very important because when you integrate regionally, you are in a better position because goods pass through you…[making you] part of global value chains with value added.”

In landlocked countries like Bhutan (pictured), roads are a vital lifeline. But limited and costly transport infrastructure restricts mobility, inflates trade costs, and hinders access to markets, education, and healthcare.

Escaping the commodity trap

Another structural challenge is heavy dependence on commodities. Over 80 per cent of landlocked developing countries rely on raw materials like minerals, oil or agricultural goods, making them highly exposed to global price swings and long-term decline in terms of trade.

“You educate your people, but then they have nowhere to work because commodities do not give you the quality jobs that you need for the future,” said Ms. Grynspan.

The path forward lies in economic diversification, especially toward value-added manufacturing, digital services and knowledge-based sectors – industries that are less constrained by geography.

The investment conundrum

Yet to realise that potential, these countries need investment and they are not getting enough.

Despite more than 135 legal and policy reforms aimed at attracting foreign capital, foreign direct investment has declined by an average of 2 per cent over the past decade.

ESCAP’s analysis confirms this gap: landlocked countries in Asia are receiving far less infrastructure investment per person compared with coastal countries, even though their transport requirements are proportionally higher.

“Governments are trying to make their countries more attractive [but] investment is not coming in,” Ms. Grynspan said.

High risk factors, lack of guarantees, and a reliance on short-term financing are deterring investors.

“Multilateral development banks need to help us,” she added. “We need long-term, affordable financing and lowered cost of capital.” 

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Millions remain invisible – but Asia-Pacific leaders pledge change by 2030

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Now, governments have committed to close that gap by 2030.

At the conclusion of the Third Ministerial Conference on Civil Registration and Vital Statistics in Asia and the Pacific, leaders adopted a renewed declaration to strengthen national civil registration systems – the foundational mechanisms that register births, deaths and other vital events.

The move extends the regional “CRVS Decade” initiative, first launched in 2014, into a new phase aligned with the Sustainable Development Goals (SDGs), especially target 16.9 on ensuring legal identity for all.

“These numbers are more than statistics, they represent lives without legal recognition and families left without support,” said Armida Salsiah Alisjahbana, the Executive Secretary of the UN Economic and Social Commission for Asia and the Pacific (ESCAP), which convened the forum.

“This week has been a powerful call to action. We have seen inspiring examples of countries reaching the most marginalized, embracing digital innovation and strengthening legal and institutional frameworks.”

More than statistics

Civil registration and vital statistics (CRVS) systems are essential to establishing legal identity, accessing services, and ensuring inclusion in public policy.

A birth certificate can mean access to healthcare, education and social protection.

A death certificate enables families to claim inheritance, pensions and other rights.

Without these critical documents, individuals – especially women, children and rural populations – risk exclusion, vulnerability, and injustice.

Uneven progress

According to a recent ESCAP report, the region has made remarkable gains since 2012 – the number of unregistered children under five has fallen by over 60 per cent, from 135 million to 51 million.

As of 2024, 29 countries now register more than 90 per cent of births within a year, and 30 do the same for deaths. The number of countries publishing civil registration-based vital statistics nearly doubled in that period.

However, progress remains uneven – about 14 million children in the region reach their first birthday without having their birth registered. And 6.9 million deaths go unrecorded annually, particularly those that occur outside health facilities or in remote areas.

Many countries still face gaps in certifying and coding causes of death, hampering disease surveillance and public health responses, as seen during the COVID-19 pandemic.

ESCAP Photo/Panumas Sanguanwong

A participant at the Ministerial Conference on Civil Registration and Vital Statistics (CRVS) in Bangkok takes part in a demonstration at the Thai digital ID and verification exhibition booth.

Get everyone in the picture

The new Ministerial Declaration calls for universal and responsive CRVS systems that are inclusive, digitally enabled and resilient.

It emphasizes gender equity in registration, legal protections for personal data, and continuity of services during emergencies.

Governments also pledged to increase training, expand community outreach and improve cause-of-death reporting – including through verbal autopsies and improving certification systems.

“Everyone counts. Data saves lives,” Ms. Alisjahbana said, “legal identity is a right, not a privilege. No one should be left behind – simply because they were never counted in the first place.”

“Let us finish what we started. Let us get everyone in the picture and ensure every life truly counts.”

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No Dark Matter, astronomers find the long missing Universe’s ordinary matter

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Astronomers have detected much of the Universe’s ordinary matter, which had long been missing from accounts of its total mass. Not ‘dark matter’ — the mysterious, invisible stuff that makes up the majority of the Universe’s contents. This is normal matter, but it’s spread so sparsely across intergalactic space that more than three-quarters of it is almost undetectable.

Using an array of 36 radio telescopes in remote Western Australia, researchers analysed the light from 6 fast radio bursts (FRBs), unusually energetic events that last just milliseconds and originate in other galaxies. The spectrum was sensitive enough to reveal the exceedingly thin matter that the FRBs met in their travels. “The missing matter was equivalent to only one or two atoms in a room the size of an average office,” says radio astronomer Jean-Pierre Macquart.

More than three-quarters of the baryonic content of the Universe resides in a highly diffuse state that is difficult to detect, with only a small fraction directly observed in galaxies and galaxy clusters. Censuses of the nearby Universe have used absorption line spectroscopy to observe the ‘invisible’ baryons, but these measurements rely on large and uncertain corrections and are insensitive to most of the Universe’s volume and probably most of its mass.

Universe’s invisible baryons

In particular, quasar spectroscopy is sensitive either to the very small amounts of hydrogen that exist in the atomic state, or to highly ionized and enriched gas in denser regions near galaxies. Other techniques to observe these invisible baryons also have limitations — Sunyaev–Zel’dovich analyses can provide evidence from gas within filamentary structures, and studies of X-ray emission are most sensitive to gas near galaxy clusters.

The scientists said a measurement of the baryon content of the Universe using the dispersion of a sample of localized fast radio bursts; this technique determines the electron column density along each line of sight and accounts for every ionized baryon.

“We augment the sample of reported arcsecond-localized fast radio bursts with four new localizations in host galaxies that have measured redshifts of 0.291, 0.118, 0.378 and 0.522. This completes a sample sufficiently large to account for dispersion variations along the lines of sight and in the host-galaxy environments, and we derive a cosmic baryon density of Ωb=0.051+0.021−0.025h−170 (95 per cent confidence; h70 = H0/(70 km s−1 Mpc−1) and H0 is Hubble’s constant,” wrote scientists in their paper published in Nature.

This independent measurement is consistent with values derived from the cosmic microwave background and from Big Bang nucleosynthesis, they wrote in their abstract.