22 May 2026 8:45 pm
Decarbonising Everything is Impossible – Here’s Why

Decarbonising Everything is Impossible – Here’s Why

Captivating view of Sharjah’s skyline reflecting on water at dusk, showcasing modern architecture. by Siarhei Nester via Pexels

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Decarbonising everything is impossible – here’s why

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MOLPIX/Shutterstock, CC BY-NC-ND

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By Muhammad Imran, Aston University

Walk into any supermarket and you are surrounded by carbon. Not the kind measured in parts per million in climate reports, but carbon in its most tangible form: the polymer shell of a shampoo bottle, the insulation behind the ceiling tiles, the synthetic fibres in the bag hanging from your wrist.

These are not accidental byproducts of the fossil fuel era. They are its second act, less visible than combustion but no less consequential.

The global conversation about net zero has been almost entirely about energy. This framing is essential, but it rests on an assumption so embedded it rarely gets examined: that the only thing fossil fuels give us worth worrying about is the energy released when we burn them.

Roughly 15-20% of all fossil fuel consumption is never burned at all. It is transformed into the physical fabric of modern life: plastics, polymers, fertilisers, adhesives, solvents and synthetic textiles. When these products are eventually incinerated, degraded or discarded, their carbon returns to the atmosphere, a contribution to global warming that is real, growing and almost entirely absent from mainstream net zero accounting.

As well as a green energy transition, the material transition needs to be sustainable. But three industries at the heart of this problem are often overlooked: chemical manufacturing, plastic polymers and construction.

The chemical industry is the upstream engine of many modern materials, using about 14% of global oil demand and 8% of global gas demand. Much of that is used as a raw material rather than fuel.

Ammonia, made from natural gas via a century-old process known as Haber-Bosch, underpins the fertilisers that feed roughly half the world’s population. Ethylene, derived from crude oil, is the starting point for an enormous range of plastics, solvents and coatings. Processing carbon is a fundamental part of this industry.

The world produces approximately 400 million tonnes of plastic every year, almost all from fossil feedstocks. Only around 9% is ever recycled. The rest is incinerated, landfilled or lost to the environment. Each pathway returns fossil carbon to the atmosphere at varying speeds.

Mark Maslin, Earth systems scientist at UCL, explains the concept of net zero as part of The Conversation’s quick climate dictionary.

Construction offers more promise. Buildings can stand for 50 to 100 years, so the carbon contained in their materials can remain locked away for decades.

Take timber: trees absorb carbon dioxide as they grow and store that carbon in wood. But the same idea can be extended to engineered materials. Agricultural and forestry residues (such as crop cuttings, twigs and leaves) can be turned into biochar, a stable charcoal-like form of carbon, and used to make aggregates or concrete. Carbon dioxide can be captured using technologies and then converted into construction products, including insulation materials. In each case, carbon is not simply treated as waste; it becomes part of long-lived buildings and infrastructure.

The solution is not to eliminate carbon from industry altogether, but to stop treating fossil carbon as the default raw material.

Chemicals, plastics and construction products will still need carbon, but that carbon does not always have to come from oil, gas or coal. It can come from plant-based sources or waste products from farming or forestry plus other forms of sustainably sourced plant material. It can also come from carbon dioxide captured from industrial processes before it escapes into the atmosphere.

builder's hands in gloves holding yellow wall insulation
Most construction products such as insulation are currently made from fossil-fuel based carbon sources.
Virrage Images/Shutterstock

Used carefully, these carbon sources can help replace fossil fuel-based carbon in polymers, construction products, insulation materials and chemicals.

Careful assessment of these alternatives will ensure they genuinely reduce emissions across a product’s full life cycle. That includes where the carbon came from, how much energy was used to extract it, whether environmental damage to land was avoided, how long the carbon remains in the product, and what happens when the product reaches the end of its life.

A related question is how captured carbon should be managed. Permanently burying captured carbon in underground rocks or the deep ocean removes those atoms from the accessible cycle for millennia, progressively depleting the surface carbon pool on which agriculture and industry both depend. To reach a more circular, less wasteful system, carbon should be kept in circulation and recovered at end of life. Burial should be a last resort.

Moving together

Making this transition work requires six things to move together. New materials must genuinely perform as well as the fossil ones they replace. Sustainable carbon supplies must be mapped honestly, because biogenic carbon (carbon derived from recently living organisms such as plants or algae) is limited so choices about allocation will have to be made.

Policy must reward circular carbon through procurement rules, carbon pricing and regulation. Rigorous life-cycle assessments can verify that new materials are genuinely better, not merely different. End-of-life infrastructure (such as sorting, collection, repair, recycling and safe disposal systems) must be built before production scales up to ensure it’s not an afterthought.

Trust from consumers, retailers and manufacturers will depend on proving where the carbon in a product came from, how it was processed and what happens to it at the end of its life.

The origin of any carbon is invisible. So for the market for circular carbon materials to function transparently, reliable labelling, certification and digital product passports (digital records that highlight a product’s origin, supply chain and environmental impact) are vital.The Conversation

Muhammad Imran, Associate Professor, Mechanical Engineering, Aston University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

The Conversation.


 

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Could This Self-Cooling Mosque Be the Future?

Could This Self-Cooling Mosque Be the Future?

This mosque is one of two buildings that make up the Hikma Community Centre in Niger. On the hottest days it can be up to 15°C cooler inside than it is outside, without the need for air-conditioning. Credit: JamesWang 

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Could this self-cooling mosque be the future of construction in a warming world?

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UNEP

The small town of Dandaji, Niger, sits on the edge of the Sahara Desert. It is a place where temperatures routinely top 45°C, blanketing residents in a suffocating, oven-like heat.

Unless they’re in the town’s mosque.

With its tree-filled garden, soaring ceilings and earthen-brick walls, the building has been designed to chill itself. On the hottest days, it can be up to 15°C cooler than the outside air – without air-conditioning.

The mosque is one of two buildings – the other is a library – that make up the Hikma Community Centre.

 

While it was completed in 2018, the award-winning complex – co-designed by Nigerien architect Mariam Issoufou – is receiving renewed attention as urban areas swelter under record-breaking temperatures.

“Whether you’re in Niamey or New York, climate change is fast making extreme heat the new normal,” says Hongpeng Lei, the Chief of the Climate Mitigation Branch of the United Nations Environment Programme (UNEP). “We need to develop better ways of building if we want our homes and offices to be livable in the years to come.”

The Hikma complex is a marvel of what experts call passive cooling – a smorgasbord of architectural techniques that ease indoor temperatures without the need for air-conditioning.

A prime example of this are the mosque’s walls. Aside from a few concrete ribs, they are built entirely from earthen bricks, which draw inspiration from Niger’s adobe buildings of yore. The bricks are forged by mixing small amounts of cement and water with laterite, a rusty-red soil found across West Africa. More porous than concrete – West Africa’s building material of choice – the bricks allow heat to dissipate at night, keeping temperatures comfortable.

 

Could this self-cooling mosque be the future of construction in a warming world? The outside of an earthern-brick mosque.

The soaring ceilings of the mosque, which measure up to 9 metres high, allow heat to waft up and away from worshippers. Credit: James Wang Since the Hikma complex was completed in 2018, a growing number of West African buildings have used compressed earth bricks, in part because of its influence. That represents a mini-renaissance for a substance once viewed as “backward,” says Issoufou, who created the complex alongside Iranian architect Yasaman Esmaili.

“Since the beginning of the 20th century, concrete has been seen as the material of progress. I was laughed out of rooms when I brought up earth,” she says. “But there is a lot of wisdom embedded in the buildings of the past.”

Another key to the mosque’s cooling is its vaulted ceilings, which range from six to nine metres high. Their loftiness allows hot air to waft up and away from worshippers. Once it reaches the mosque’s roof – a series of earthen brick rings crafted by local masons – it dissipates into the outside air.

The mosque also has precisely aligned doors and windows that allow breeze to pass through when opened. Equally important, the mosque is not one cavernous space. It is split into two sections, or volumes, each with their own doors and windows that face each other.

 

Could this self-cooling mosque be the future of construction in a warming world? The outside of an earthern-brick mosque.
A series of walkways and precisely aligned doors allow breezes to cascade through the mosque. Credit: James Wang 

To keep cool, the mosque has one more trick up its sleeve. Just outside is a tree-filled garden fed by a drip irrigation system, which captures water during Niger’s brief rainy season and stores it in a cistern.

The trees – visible in satellite images – serve two purposes. First, they provide a dose of cooling shade. Second, when the water in their leaves evaporates – a process known as transpiration – it chills the surrounding air.

“We underuse nature,” says Issoufou, who was named a 2025 UNEP Champion of the Earth, the United Nations’ highest environmental honour. “It’s incredibly versatile.”

 

An overhead view of the Hikma Complex, and its gardens, with the new mosque at the bottom and the library at the top. Credit: Courtesy Mariam Issoufou 

Around the world, there is a growing push for architects and city planners to embrace passive cooling strategies, which can lower indoor temperatures by up to 8°C, according to a recent report from UNEP.

Along with keeping congregants cool, there is another big benefit to the way Dandaji’s mosque was built: it has a tiny environmental footprint.

Since the laterite soil in its bricks was sourced locally, builders didn’t need to import huge amounts of concrete from afar, which can drive up greenhouse gas emissions. At the same time, the bricks used far less cement than concrete would have. Cement production is a major source of emissions, as is air conditioning, which the building forgoes. (On the hottest days, mosque officials bring out a few oversized fans.)

 

Could this self-cooling mosque be the future of construction in a warming world?
The new mosque was inspired by Dandaji’s old adobe mosque, which was converted into a library and stands a stone’s throw away. Credit: James Wang 

Many see the complex as an antidote to the resource-heavy construction practices that dominate in most places. Glass, steel, concrete, air-conditioning – these things take energy to manufacture and maintain. In fact, the construction and operation of the world’s buildings consume nearly 50 per cent of raw materials and produce more than one-third of all greenhouse gas emissions, finds UNEP’s new Global Status Report for Buildings and Construction.

Support for more eco-friendly building practices is growing. UNEP, for instance, is working with countries to expand the use of low-carbon and locally sourced materials. In Ghana, it is helping develop affordable, climate-resilient housing, while in Senegal it is backing the production of insulation boards made from typha, a fast-growing local plant. The effort also focuses on training local builders and businesses in techniques like circular construction and climate-sensitive design.

 

 The inside of an adobe library.
The library is widely seen as a marvel of traditional Nigerien architecture and was completely refurbished as the new mosque was built. Credit: James Wang 

While materials like laterite bricks are very specific to West Africa, most countries have their own equivalents, Issoufou says. She points to places like Europe and North America, where cross-laminated timber – made by gluing together wooden planks – is emerging as a low-carbon alternative to concrete and steel. In parts of Asia, bamboo – one of the world’s fastest growing plants – is experiencing a revival because it is strong, sustainable and cheap.

With the planet slipping into an ever-deeper climate crisis, building edifices that are sustainable and that cool themselves is “the rational thing to do,” Issoufou says. “The question is: why would you not do that?”

About World Environment Day

World Environment Day, celebrated annually on 5 June, is one of the planet’s largest platforms for environmental outreach and is led by the United Nations Environment Programme (UNEP). This year’s iteration, hosted by Azerbaijan, will focus on the mushrooming climate crisis. See how you can get involved.

Written by Andrew Raven

Reviewed by: Hanane Hafraoui, Gulnara Roll, Hongpeng Lei

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Is the Gulf Losing Its Grip on the Oil Industry?

Is the Gulf Losing Its Grip on the Oil Industry?

A panoramic view of Dubai’s industrial waterfront with modern buildings. by Joerg Hartmann via Pexels

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Is the Gulf losing its grip on the oil world?

Adi Imsirovic, University of Oxford

One of the most striking features of the Iran war has been the resilience of the global oil market. Despite the disruption of flows through the Strait of Hormuz, the world’s most important oil transit chokepoint, prices have generally hovered around US$100 (£75) per barrel – a lower level than many observers had expected.

A key reason for this resilience is the growing importance of oil production in the Americas. Even before the war, the International Energy Agency predicted that virtually all global oil demand growth in 2026 could be met by rising supply from North and South American countries such as the US, Canada, Brazil, Guyana and Argentina.

At that time, the Opec oil producers’ cartel was also preparing to increase output, raising expectations of a period of oversupply and weak prices. The war changed that picture dramatically. The closure of Hormuz has removed up to 14 million barrels a day from the market, propelling prices higher and triggering large global stock draws instead of the expected stock builds.

Yet high prices are often the best cure for shortages. Oil producers across the Americas have responded to the disruption by increasing output and exports. In the US, crude exports rose to a record 6.44 million barrels a day in April. It is also adding new export infrastructure, with nearly 800,000 barrels a day of additional dock capacity due to come online in 2026.

Meanwhile, Brazil has added eight new offshore floating oil production vessels in recent years, with a combined capacity approaching 1.5 million barrels a day. Its oil production is also expected to rise sharply again in 2026.

Petrobras, Brazil’s state oil company, recently started a new production project at one of these vessels in the Búzios field off the coast of Rio de Janeiro. Production began five months ahead of schedule, partly to take advantage of elevated global prices.

Elsewhere in South America, Guyana has emerged as one of the world’s fastest-growing oil producers. Guyanese oil output has already reached around 900,000 barrels a day and could almost double by the end of the decade. Even Venezuela, long associated with declining oil production and economic crisis, has substantially increased exports in response to higher prices.

Taken together, the Americas are expected to produce around 30 million barrels of oil per day later in 2026, approaching pre-war Opec production levels. The US alone remains the world’s largest producer, with its total production of liquid hydrocarbons reaching almost 22 million barrels a day in April.

A US oil tanker off the coast of Alaska.
A US oil tanker off the coast of Alaska.
Natalia Bratslavsky / Shutterstock

Opec helped create this boom

This rise in western hemispheric production did not happen in isolation. Ironically, it was helped by Opec itself. For years, Opec’s de facto leader Saudi Arabia and its partners restricted oil output to support higher prices. Those elevated prices helped make more expensive projects in the Americas commercially viable, especially US shale production.

Saudi Arabia’s strategy of “higher for longer” prices was partly driven by domestic economic ambitions. To finance projects linked to its economic diversification plans, including the vast new Neom city development, the Saudis need oil prices of at least US$90 a barrel. The result has been a powerful incentive for producers outside Opec to expand.

Yet, despite this momentum, declaring a permanent shift in oil’s centre of gravity away from the Middle East would be premature. The economics of production still strongly favour Gulf producers, with oil extraction costs in the Persian Gulf remaining among the lowest in the world.

In some fields, Saudi Arabia and neighbouring producers can extract oil for less than US$10 a barrel. Across the Gulf region more broadly, average production costs are estimated at roughly US$27 a barrel. By contrast, much of North American shale production requires prices closer to between US$50 and US$65 a barrel to remain profitable.

That difference matters enormously during periods of lower prices. If markets weaken again, higher-cost producers in the Americas would come under pressure first. Gulf producers, with vast reserves and extremely low costs, would probably be able to outlast them.

Geography also favours the Middle East in many key markets. For growing Asian economies such as India, Pakistan and Bangladesh, importing oil from the nearby Gulf remains the cheapest option.

Many Asian refineries were designed specifically to process Middle Eastern crude grades, which are rich in middle distillates such as diesel and jet fuel – the hydrocarbons that typically drive economic development. Much of the shale oil exported from the US is lighter and less suitable as a direct replacement.

A map showing pipelines in Saudi Arabia and the United Emirates that bypass the Strait of Hormuz.
Saudi Arabia and the United Arab Emirates have both invested heavily in infrastructure to bypass the Strait of Hormuz.
Peter Hermes Furian / Shutterstock

At the same time, Gulf producers are investing heavily to protect their long-term role in global energy markets. The United Arab Emirates is expanding pipeline infrastructure that bypasses the Strait of Hormuz, including upgrading its Habshan-Fujairah pipeline.

And Saudi Arabia already operates its vast East-West Pipeline, which is capable of transporting 7 million barrels per day of oil to the Red Sea. These projects are designed to reduce vulnerability to regional instability and secure export routes for decades to come.

The Americas are unquestionably transforming the global oil market. The region is now effectively what is known as a swing producer, providing some flexibility during supply crises and geopolitical shocks.

But long-term dominance in oil markets is determined not only by production volumes. Cost, geography, infrastructure and reserve size matter too. On those measures, the Middle East still holds a formidable advantage.

For as long as the world continues to consume large volumes of oil, the Gulf is likely to remain the industry’s core production and export hub – even if the Americas are becoming an increasingly important source of crude oil.The Conversation

Adi Imsirovic, Lecturer in Energy Systems, University of Oxford

This article is republished from The Conversation under a Creative Commons license. Read the original article.

The Conversation

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What to Play Next: Rethinking Development Today

What to Play Next: Rethinking Development Today

View of an unfinished high-rise building under construction against a clear blue sky, showcasing urban development. by The Capturist via Pexels

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By Heiner Janus and Michael Roll – 
What to Play Next: Development after the End of Development

Heiner Janus and Michael Roll argue that the largest aid contraction on record coincides with a reopened decades-old fault line: what “development” means, who it serves — and how the field can reinvent itself for what comes next.

Manchester embodies reinvention like few other places. It built the world’s first industrial economy, watched it rust, and recast itself as the capital of England’s north. When protests turned deadly at the Peterloo massacre, it helped galvanise a tradition of organised labour and democratic reform — one that later produced the suffragettes, founded there by Emmeline Pankhurst. And when Joy Division collapsed, the remaining members re-emerged as New Order. That instinct — not to reassemble what broke but to build something new — was the animating spirit when the University of Manchester’s Global Development Institute convened researchers in mid-April to ask: is the era of Development over? And if so, what replaces it?

The question is sharpened by recent events. According to preliminary OECD data, official development assistance by DAC members fell by 23.1 percent from 2024 to 2025, the largest annual contraction on record, bringing aid back to where it stood when the Sustainable Development Goals (SDGs) were adopted in 2015. The SDGs themselves, once billed as a universal aspiration, have been formally denounced by Washington at the United Nations General Assembly. Yet the upheaval is not just institutional. It has reopened a fault line that has run through the concept of “development” from the start: what the term actually means and who it refers to.

Two distinctions matter. The first is between big-D Development, the organised international project of aid agencies, multilateral institutions, and global goal-setting, and small-d development, the messy, nationally driven process of economic and social transformation that has always owed more to domestic politics than to foreign assistance. The dismantling of the former does not necessarily halt the latter. The second distinction concerns geography. Is development a universal process, occurring in Manchester, Mumbai and Mombasa alike, or does it describe a specific relationship between richer and poorer parts of the world? The conference confronted both questions, and the answers offered little comfort.

The opening plenary dispensed with the notion that this crisis is a temporary disruption. Lee Jones of Queen Mary University argued that we are witnessing a “second Cold War” — not a systemic battle between rival ideologies, as in the first, but a positional struggle within globalised capitalism, where the pillars of the neoliberal order are being pulled apart from the inside. The implications he drew were blunt: the multilateral system is unlikely to survive in its current form, major powers are converging on a miserly approach to development spending, and what remains will be “small-d development” — capitalist integration through reworked value chains, constrained to strategically relevant geographies. National security and economic competition will trump poverty reduction and climate action.

Yuen Yuen Ang of Johns Hopkins University drew a sharper conclusion. The “polycrisis,” she argued, is paralysing only for those attached to the old order. No society has ever escaped poverty through aid or randomised controlled trials. The era of aid dependence is ending, and the spread of universal institutions has ground to a halt. For the global majority, which has never been the producer of the dominant development paradigm, this represents what she calls a “polytunity”: an opening to redefine development itself, away from assimilation and mimicry and toward what she terms an adaptive, inclusive, and moral political economy.

If Jones and Ang diagnosed a paradigm in collapse, Daniela Gabor, SOAS University of London, examined the financial architecture being built in its place. Her concept of the “Wall Street consensus” describes a world where development has been recast as an investible asset class: states de-risk while private capital extracts. The Lake Turkana wind farm in Kenya served as her case in point, a project assembled through a patchwork of dozens of financial agencies that ended up owned by BlackRock, structured in a way she called fundamentally anti-developmental. She pointed to fossil fuel subsidies rolled out in response to rising energy prices, and donor agencies bluntly subsidising domestic companies, as variations on the same theme.

The Wall Street consensus, Gabor argued, is a weak strategy of American hegemony for three reasons: it is not fast enough, not just enough, and not stable enough. Even the World Bank’s renewed interest in industrial policy amounts to little more than subsidising private capital with public money. In closing, she called for a new state-coordinated developmentalism — one that covers all states and combines industrial policy with decarbonisation.

The sharpest challenge to the current development cooperation system came from Ken Opalo of Georgetown University, who opened the second day by accusing the development community of navel-gazing. The sky has not fallen in most low-income countries, he argued, and the pathologies of aid dependency may mean its decline is less catastrophic than the sector assumes. The SDGs, in his telling, represent the lowest common denominator imaginable: any education minister merely parroting SDGs is not thinking about context, and without context, policy outruns the capacity to implement it. His prescription was a pivot from “nano-development,” meaning small, tightly measured interventions, to national development and the proactive use of policy autonomy: context-specific knowledge production, support for local priorities rather than donor-driven faddism, and honest conversations about how European trade and environmental policies actively harm the countries they claim to help.

The closing plenary surfaced the underlying tension. “Development” is becoming a dirty word, observed one participant working in a development agency. Partners find it patronising; within five years it may no longer function as a policy category. Another colleague noted that geopolitics had dominated the conference at the expense of other forms of politics, and that the return to thinking in terms of national development risks ignoring the inequalities within states that development studies had spent decades trying to illuminate. The field is being asked to reopen debates it thought it had closed. Whether development studies can survive without big-D Development remains an open question. The field’s fragmentation and its uncertain institutional footing suggest that muddling through is not an option.

Yet there is a counterweight that has been overlooked: bureaucratic inertia itself. Research on how officials in development agencies behave suggests that career bureaucrats are driven less by ideology than by institutional incentives — blame avoidance, risk aversion, and the desire to keep programmes running. These instincts are usually treated as pathologies. They often are. But in a period of erratic political disruption, they also act as a brake. Bureaucratic routines absorb and dissipate radical policy shifts. Budget lines survive reorganisations; institutions outlast the politicians who threaten to abolish them. None of this defends the status quo. But it does mean that the window for reinvention may be wider than the rhetoric of crisis suggests. The machinery slows the demolition, buying time for those willing to design what comes next.

Manchester knows something about that. Development studies at the university began in the late 1950s as a training centre for “overseas administrators.” Over the following decades it was rebuilt, first into a research institute, then into the Global Development Institute — now one of Europe’s largest centres for the study of development. A key leader in this transformation was David Hulme, the institute’s long-serving executive director, who retires this year. The conference closed with a standing ovation in his honour — a reminder that institutions, like cities, are shaped by people willing to keep innovating. The development community now faces the same test. The raw material for reinvention exists. As any member of New Order could confirm, the hardest part is not letting go. It is deciding what to play next.

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Heiner Janus is a Project Lead and Senior Researcher at the German Institute of Development and Sustainability (IDOS), where he leads a research project on the effectiveness of development policy.

Michael Roll is a Project Lead and Senior Researcher at IDOS, where he works on the governance of urban sustainability transformations in the Transformative Urban Coalitions (TUC) project.

Photo by Austin Garcia from Pexels

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Riyadh Metro Finally: The Snøhetta Station

Riyadh Metro Finally: The Snøhetta Station

Cityscape of Riyadh with busy streets and modern skyscrapers on a sunny day. by Fahad Puthawala via Pexels

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Riyadh finally has a metro, and its symbol is the Snøhetta station

The new Riyadh metro station is set to transform the Al-Qiri transport hub. Designed by Snøhetta, it features a large reflective canopy, bright underground spaces, and an underground garden intended to serve as a new urban public square. Snøhetta talks to Domus about the project.
This article was previously published in Domus 1112, May 2026.
As one of four main hubs in the Saudi capital’s new metro system, connecting two of the main metro lines, the station in the his toric Al-Qiri district is designed as an open urban and pedestrian plaza with a large stainless steel canopy that acts as an urban periscope.

The station levels are visually linked by the mirror-like overhang structure that reflects the outside inwards and the inside outwards, while also directing natural light into the underground station and providing shade to the surrounding public areas.
Qasr Alhokm Metro Station, Snøhetta, Riyadh, 2025. Photo Iwan Baan
The steel canopy serves as the focal point and marks the station’s main entrance. The supporting steel space frame allows the canopy to extend above and beyond its base to form a massive cone wall. Beneath ground level, the sloping interior walls are finished with a rendered surface inspired by the ar ea’s traditional architecture. Acting as both a unifying architectural element and a point of orientation within the building, the steel canopy also reflects indirect sunlight down wards from its mirror-like surface.

 Designed to create subtle glimpses between the different sections of the station, the patterned openings – formed by 326 tri angular carvings in three different sizes – al so filter light gently into the atrium.

When passengers step off a train and look up, they see a 360-degree view of the ur ban landscape reflected on the underside of the canopy, giving them an immediate pic ture of where they are in the city. Likewise, people arriving from the city can look up to the canopy and see a mirrored reflection of everything happening below. The two metro lines traverse the open space within trans parent tubes, creating a striking visual pres ence and enhancing wayfinding throughout the station. The platforms are also each en capsulated within glazed tubes that pro trude into the atrium void, allowing a seam less integration between interior and exte rior, and opening the platform areas to the grandeur of the atrium for both arriving and departing travellers.
Qasr Alhokm Metro Station, Snøhetta, Riyadh, 2025. Photo Iwan Baan
At the base of the atrium, at around 35 metres below city level, an accessible garden helps to maintain a temperate environment even during the hot summer periods. Wa ter for irrigation is collected from the paved plaza areas and canopy above. The new pla za and garden further strengthen the public realm, providing valuable shared spaces for the nearby communities.With respect for the station’s historic setting, the inner atrium walls are adorned with a window-cut pattern inspired by tradi tional Najdi motifs, echoing the architectur al character of the surrounding neighbour hoods.
Qasr Alhokm Metro Station, Snøhetta, Riyadh, 2025. Photo Iwan Baan
Designed to create subtle glimpses between the different sections of the station, the patterned openings – formed by 326 tri angular carvings in three different sizes – al so filter light gently into the atrium.
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