Iran and the Arabian Peninsula depend on desalination plants to survive – why water has become a target

Source: The Conversation – UK – By Sanam Mahoozi, Research Associate, City St George’s, University of London

Around 70% of Saudi Arabia’s drinking water comes from desalination plants. In Kuwait and Oman the figure is 90%. Stanislav71/Shutterstock

The Gulf region has been defined by oil for decades. Tankers, pipelines and refineries have long been seen as the region’s most critical – and vulnerable – assets.

In the past few days, US-Israeli strikes hit oil depots in Tehran, with reports emerging of black rain falling for hours afterwards, which has been described in the media as acid rain.

But it is the networks and connections that support access to water and the desalination plants that now sustain daily life.

When oil supplies are restricted and prices escalate, oil “shocks” damage economies. But a water crisis can destabilise societies.

Across the Arabian Peninsula, seawater desalination, which turns saltwater into drinking water, has transformed some of the driest landscapes on Earth into thriving urban societies. Cities such as Dubai, Doha, Kuwait City and Abu Dhabi rely overwhelmingly are massively dependent on desalination plants.

For instance, 70% of Saudi Arabia’s drinking water comes from desalination plants. In Kuwait and Oman the figure is 90%. Without desalination plants, large parts of the region’s modern urban systems would struggle to exist.

Yet this technological achievement has quietly produced a new form of strategic vulnerability. The Gulf‘s water security depends on a relatively small number of massive coastal plants – industrial complexes that operate as the lifelines of entire cities.

The current military conflict has begun to expose this. Missile strikes and drone interceptions have occurred at, or near to, major desalination and water and power complexes in the Gulf. Both Iran and the US have been accused of having targeted these facilities. Even when damage is limited, the proximity of attacks highlights how exposed these facilities are to modern warfare.

Unlike oil pipelines or storage terminals, desalination plants cannot easily be bypassed or replaced. They are fixed, highly complex installations requiring large energy inputs, specialised membranes or thermal systems, and continuous chemical and mechanical treatment processes. Repairing serious damage to a major plant could take months or longer.




Read more:
Persian Gulf desalination plants could become military targets in regional war


The consequences of disruption would be immediate. Most cities in the region have limited water storage capacity. If a major desalination plant was out of action, governments could face the prospect of emergency water rationing for millions of residents within a matter of days. Hospitals, sanitation systems, food production and industry would all be affected simultaneously.

This risk is amplified by the region’s underlying water scarcity. The Middle East is among the most water-stressed regions in the world. Rainfall is low and highly variable, while rising temperatures increase evaporation and water demand. Groundwater aquifers have been heavily depleted across much of the region.

In Iran, declining river flows, prolonged drought and over extraction of groundwater have already left dams running dry. Similar pressures exist across other countries where renewable freshwater resources are extremely limited. Desalination has, therefore, evolved from a supplementary technology into the backbone of urban water systems. This shift has produced what might be called “desalination dependency”: a condition in which entire societies rely on a small number of centralised facilities to maintain their basic water supply.

The scale of this dependency is striking. Roughly 100 million people in the wider region depend directly on desalinated water. The Arabian Peninsula alone accounts for a substantial share of global desalination capacity, and the ten of the largest plants in the world are concentrated along the shores of the Gulf and the Red Sea. As water scarcity intensifies in the region, this dependence is likely to grow. But greater reliance also means greater exposure.

Bahrain says Iran damaged a water desalination plant.

Water infrastructure has historically been vulnerable during conflicts. From Iraq to Syria to Yemen, water treatment plants, pumping stations and reservoirs have been damaged or targeted during conflicts. International humanitarian law recognises this danger. Article 54(2) of protocol additional to the Geneva conventions of August 12 1949, and relating to the protection of victims of international armed conflicts (protocol I), states that:

It is prohibited to attack, destroy, remove, or render useless objects indispensable to the survival of the civilian population, such as foodstuffs, agricultural areas for the production of foodstuffs, crops, livestock, drinking water installations and supplies and irrigation works for the specific purpose of denying them for their sustenance value to the civilian population or to the adverse Party, whatever the motive, whether in order to starve out civilians, to cause them to move away, or for any other motive.

These protections apply to both international and non-international armed conflicts.

Big risks

The humanitarian consequences of disabling these huge desalination plants would be severe. Unlike oil infrastructure, which can sometimes be bypassed through global markets or emergency reserves, urban water supply systems are highly localised. If a desalination plant serving a large metropolitan area was hit and damaged in an attack, there would be few immediate alternatives. Water imports by tanker or emergency desalination units could provide temporary relief, but they could not fully replace the daily output of a large facility.

The ripple effects would extend far beyond drinking water. Sanitation systems would begin to fail, public health risks would rise, and economic activity could slow dramatically. Tourism, industry and services – all pillars of Gulf states’ economies – depend on stable water supplies.

The broader geopolitical implications are equally important. The Gulf is increasingly becoming a testing ground for a new form of infrastructure vulnerability in the age of climate stress: the weaponisation of water production systems. As desalination expands globally – from California and Australia to North Africa and southern Europe – similar vulnerabilities may emerge elsewhere. Coastal megacities facing drought are investing heavily in large desalination facilities to secure future water supplies. The expectations of protection of such infrastructure during conflict will therefore have consequences far beyond the Middle East.

Protecting desalination plants is not merely a regional concern. It is part of a broader challenge of safeguarding the technological systems that sustain modern societies under conditions of environmental scarcity.

Several strategies could reduce risk. Expanding wastewater recycling and replenishing natural water storage areas could diversify water sources. Distributed desalination systems — smaller plants spread across multiple locations — could reduce reliance on single large facilities. Increasing strategic water storage capacity would also provide cities with a buffer against sudden disruptions.

But technical solutions alone cannot address the core issue. The real challenge lies in recognising desalination plants for what they have become: critical humanitarian infrastructure on which entire populations depend.

For much of the 20th century, oil defined the cities of the Gulf. In the 21st century, desalinated water keeps them alive.

The Conversation

Sanam Mahoozi does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Iran and the Arabian Peninsula depend on desalination plants to survive – why water has become a target – https://theconversation.com/iran-and-the-arabian-peninsula-depend-on-desalination-plants-to-survive-why-water-has-become-a-target-278142

Kharg Island: Iran’s energy lifeline that has so far escaped attack

Source: The Conversation – UK – By Christian Emery, Associate Professor in International Politics, UCL School of Slavonic and East European Studies, UCL

As the US and Israel’s assault on Iran grinds on, the Trump administration has issued increasingly bellicose claims that American and Israeli forces are delivering ferocious blows to the Iranian regime.

The US secretary of defense, Pete Hegseth, warned of the “most intense” day of strikes yet on March 10. And Donald Trump followed with a claim that the war will end soon because there is “practically nothing left” in Iran for the US military to target.

This is all part of a campaign that the White House has declared is aimed at “systematically dismantling the Iranian regime’s ability to ever again threaten America, our allies, and global security.”

So far, this campaign has largely targeted Iran’s military and nuclear facilities. But some critical non-military infrastructure has also come under attack. Israel struck two oil refineries and two oil storage facilities near Tehran on March 8, with Iran accusing the US of attacking a desalination plant the same day.

Yet one target vital to Iran’s economic survival, its largest export terminal for sending oil to international markets, remains unscathed. That terminal sits on Kharg, a small coral island off Iran’s south-western coast. This is where oil pumped across Iranian oil fields arrives via subsea pipelines to be loaded on to tankers, mostly bound for China.

At peak capacity, the terminal’s vast storage facilities and multiple jetties can handle millions of barrels of oil per day. Kharg accounts for an extraordinary 90% of Iranian crude exports and tens of billions of US dollars of annual government revenue.

No other major oil-producing country is so reliant on just one facility. Saudi Arabia, Kuwait and the United Arab Emirates in the Gulf, and massive producers elsewhere such as Russia, Mexico and Venezuela, do not concentrate almost all their export capacity in a single location.

Kharg Island located on a map of the Persian Gulf.
Kharg is a five mile long island located off the south-west coast of Iran.
Uwe Dedering / Wikimedia Commons, CC BY-SA

Iran’s energy lifeline

Kharg Island became the linchpin of Iran’s oil industry due to a convergence of history and geography. Nowadays, Kharg is widely known among Iranians as the “forbidden island” because of the tight military restrictions and secrecy that surround it.

Yet behind its modern geoeconomic significance lies an ancient history, from early human settlements dating back more than 4,000 years to occupation by various empires that understood its strategic maritime importance as a trading post. The island also housed political prisoners in the mid-20th century, before the construction of Kharg’s modern terminal began in 1958.

The island quickly became Iran’s dominant export port for two reasons. First, it could be connected by pipeline to the major oil fields in south-western Iran. And second, its deep water location made it one of the only places on Iran’s western coast that could accommodate the new supertankers that were at the time dramatically reducing the cost of transporting oil.

Once the gigantic storage facilities, jetties and subsea pipelines feeding the terminal had been constructed, centralising exports there created significant efficiencies. Oil from multiple fields could share the same storage and loading infrastructure, thereby reducing overall operating costs.

Kharg’s dominance in the national oil export system was further reinforced after the Islamic revolution in 1979. This was because regional tensions and Iran’s emphasis on self-reliance discouraged it from using pipelines that pass through neighbouring countries.

At first glance, Iran’s reliance on one terminal for nearly all its oil exports seems like a major strategic vulnerability. There are also no significant operational challenges preventing the US and Israel from destroying it. Yet, paradoxically, this is precisely why it has not been targeted thus far.

Crippling Iran’s entire oil industry for months – if not years – would shatter the already fragile confidence in financial markets that Trump can achieve his vague war aims without long-term disruption to the global economy. Some analysts predict that oil prices could soar to US$150 (£112) a barrel if Kharg is hit.

To put that figure into context, Russia’s 2022 full-scale invasion of Ukraine caused Brent crude to rise to well over US$100 a barrel for four months. This was not the only cause of the roughly 9% surge in inflation seen at the time, but it was an important factor in the ensuing cost of living crisis.

Launching an attack on Kharg would likely expose Trump’s gamble in launching a war against Iran while simultaneously promising US consumers that virtually everything would become more affordable as a catastrophic error. American voters are indicating that inflation and the cost of living are their biggest concerns ahead of the upcoming midterm elections in November.

Of course, Trump’s intervention in Iran may lead to rising prices even if the US does not attack Kharg Island. The wider disruption to Gulf shipping in the strait of Hormuz has already caused oil prices to rise to around US$100 per barrel. And in his first statement since becoming Iran’s supreme leader, Mojtaba Khamenei vowed to keep blocking the waterway.

But at least for the moment, Trump seems to realise that Kharg Island needs to be left intact if he is to preserve the already shaky notion that he can end this war in a manner he can present as a success – which increasingly looks like degrading Iran but not forcing it to capitulate – without causing long-term economic pain for Americans.

One other factor preventing the US from destroying Kharg is that it would cause long-lasting damage to the Iranian economy. This would undermine any pretence that Trump is acting in the interests of the Iranian people, as he has claimed, since any new government would be financially crippled if the regime did collapse.

So Kharg Island survives intact for now. This is, in large part, due to the fundamental contradiction between Trump’s objectives in Iran and the political and economic costs he is willing to incur in pursuit of them.

The Conversation

Christian Emery does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Kharg Island: Iran’s energy lifeline that has so far escaped attack – https://theconversation.com/kharg-island-irans-energy-lifeline-that-has-so-far-escaped-attack-278139

Why the next escalation in the Iran conflict could be between the US and Turkey

Source: The Conversation – UK – By Ben Seymour, PhD Candidate in International Relations, Nottingham Trent University

In the two weeks since the US and Israeli strikes on Iran began, Donald Trump’s war aims have fluctuated between crippling Iranian military capabilities and toppling the regime that has ruled there since 1979. But despite the success of the initial strikes, which killed the supreme leader, Ali Khamenei, many analysts believe that air power alone will not be sufficient to bring about regime change.

They say this objective would be impossible to achieve without combat troops on the ground, a move that most US military and political leaders have long opposed. Instead, one idea that seems to be circulating in Washington is to support an invasion by armed Kurdish groups in Iraq and western Iran to destabilise the Islamic Republic from within.

Trump publicly backed away from this idea on March 6, telling reporters: “I don’t want the Kurds to go into Iran … The war is complicated enough as it is.” But, given Trump’s trademark inconsistency and the unpredictable nature of this conflict, an armed Kurdish uprising remains a distinct possibility. Such a scenario could have consequences that extend far beyond Iran.

The Kurds are an ethnic group with their own language and culture who have lived in a mountainous area of the Middle East for centuries. Nowadays, they number around 30 million and live in a region that spans parts of Turkey, Iran, Iraq and Syria. The Kurds are widely considered to be the world’s largest stateless people because they do not have a country of their own.

This situation dates to the end of the first world war, when the Ottoman empire collapsed. Kurdish leaders at that time hoped to establish their own state, having lived for 400 years under Ottoman rule. But instead their homeland was divided between several new countries that emerged from the defeated Ottoman state. This left Kurdish communities split across international borders.

A map showing the spread of Kurds throughout the Middle East.
The Kurdish population is spread across areas Iran, Iraq, Syria and Turkey.
Peter Hermes Furian / Shutterstock

Around 10% of Iran’s population is Kurdish and many live in the country’s north-west near the borders of Iraq and Turkey. The Kurdish region of Iran has long been the least economically developed part of the country and Kurdish political parties are outlawed. Armed Kurdish groups have periodically clashed with the Iranian state, demanding greater autonomy or independence.

The Kurdish question is even more sensitive in Turkey, which is home to the largest population of Kurds in the world. Since 1984, the Turkish state has been locked in conflict with the Kurdistan Workers’ party (PKK), an armed group that has fought to establish an independent Kurdish state. This conflict has killed more than 40,000 people in the past four decades.

For the Turkish government, the possibility that the US may support Kurdish fighters in neighbouring Iran is therefore not just a foreign policy issue. Turkish leaders worry that strengthening Kurdish armed groups elsewhere in the region could embolden similar movements inside Turkey itself.

In the recent past, Turkey has launched military incursions into the Kurdish regions of Iraq and Syria. It has also fought a brutal counterinsurgency against PKK fighters inside its own borders. These actions show how strongly Turkish leaders oppose any notion of Kurdish independence anywhere in the region.

American support for Kurdish fighters has caused tension between the US and Turkey in the past. Turkey strongly opposed the partnership between Washington and Syrian Kurdish forces during the fight against the Islamic State militant group in Syria in the late 2010s. It argued that some of these Kurdish groups were linked to the PKK.

Turkey’s relations with Israel have also been strained by the Kurdish question. The Turkish president, Recep Tayyip Erdoğan, has accused the Israeli prime minister, Benjamin Netanyahu, of undermining the transitional Syrian government by aiding Kurdish groups there. The Kurdish issue has clearly become a major source of tension between Turkey, a key member of the Nato alliance, and the west.

So far, Turkey has largely remained neutral in the Iran war. Despite their regional rivalry, Turkish and Iranian leaders share concerns about Kurdish separatist movements and have sometimes cooperated to contain them. In the past, security forces from both countries have coordinated efforts against Kurdish militant groups operating along their shared border.

Turkish and Iranian officials have also exchanged intelligence and carried out military operations against Kurdish fighters moving between the two countries. And both governments strongly opposed the 2017 referendum on independence that was held by the Kurds in northern Iraq. Over 92% of votes were cast in favour of independence.

Kurdish fighters travel on the back of an armoured vehicle.
Turkey sees Kurdish militancy as a core national security concern.
Sebastian Castelier / Shutterstock

Iranian regime change

For Turkey, the collapse or fragmentation of the Iranian state would be deeply worrying. It could create exactly the conditions Turkish leaders fear most: armed Kurdish groups operating across a much longer and more unstable border.

Another concern is the possibility of a new refugee crisis. Turkey already hosts nearly 4 million Syrians following the civil war that began there in 2011 – the largest refugee population in the world. This has become a major political issue inside Turkey.

If conflict or state collapse in Iran – a larger and even more politically complex state than Syria – triggers large-scale displacement, many more refugees could head west towards Turkey. Such a scenario would place considerable political and economic pressure on the government.

Washington may see the Kurds as a useful way to confront the Iranian regime without deploying American troops. But such a strategy could create new tensions elsewhere in the region. For Turkey, Kurdish militancy is not simply a foreign policy issue but a core national security concern.

If the Iran war ends up empowering Kurdish armed groups or destabilising Turkey’s border, Erdoğan may yet feel compelled to respond. This could open up another front in an already expanding regional conflict.

The Conversation

The authors do not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

ref. Why the next escalation in the Iran conflict could be between the US and Turkey – https://theconversation.com/why-the-next-escalation-in-the-iran-conflict-could-be-between-the-us-and-turkey-278341

Is Labour in ‘deep trouble’ with Black voters? What the evidence tells us

Source: The Conversation – UK – By Maria Sobolewska, Professor of Politics, University of Manchester

Before each general election in the late 1990s and early 2000s, campaign group Operation Black Vote used to publish a list of the most ethnically diverse constituencies in the UK. These were the areas in which the size of the non-white population exceeded the size of the incumbent party’s majority. The idea was to persuade political parties to campaign in these places and to think about what they were offering to ethnic minority voters.

Operation Black Vote, which was founded in 1996 to empower voters from ethnic minority backgrounds, had good reason to worry. Both anecdotal and academic research shows that ethnic minority voters had been largely taken for granted by the Labour party.

As an example, the prominent Labour politician Roy Hattersley wrote candidly about the minority vote contributing to his 1974 re-election as an MP for Birmingham Sparkbrook: “I won with an increased majority, the well-organised and invariably loyal Kashmiris had cast their disciplined vote early in the day.”

Unsurprisingly, this “invariably loyal” vote led to minority voters reporting less contact from parties during election campaigns.

With support for Labour almost always in the region of 70% to 80% across most Asian and Black voter groups, the fact that David Weaver, the chairman of Operation Black Vote, has now said that Labour is in “deep trouble” with Black voters is therefore remarkable.

Indian and Muslim voters are already leaving

Historically, different ethnic groups had differing levels of support for Labour but even in the fragmented 2024 general election, it remained the most popular choice for British Black and Asian voters. However, this is a far cry from Labour being able to take this vote for granted. Two recent developments should give the party particular pause.

First, Indian-origin Britons have already started drifting away from Labour. Their movement towards the Conservatives has been slow but steady since 2010. The continuous nature of this defection suggests that there is little Labour could do to reverse it. While in 2024 a plurality of British Indians still chose Labour, this is the lowest vote share the party has received from this group in any recorded general election.

Second, and perhaps more alarming, is a break in the traditional loyalty among British Muslims that characterised the 2024 general election. Labour voting among this group collapsed by almost 30% and delivered a handful of independent MPs to parliament. Some took Labour’s historically safe seats, mostly on pro-Gaza tickets.

More recently, these voters moved towards the Green party in the 2026 byelection in Gorton and Denton. It is this choice that represents a new and particularly threatening issue for Labour. As a result of the general fragmentation of the party system, ethnic minority voters now seem to have alternative choices, and feel freer to opt for them.

Muslim voters defected from Labour in 2005 over the Iraq war but the resulting protest vote for the Liberal Democrats was short-lived. By 2010 the Muslim vote for Labour had recovered.

The contrast with today’s vote switching and record support for small parties is stark. With more viable options on the ballot, it is not inconceivable that many Muslim voters may not return to Labour.

Could Black voters follow?

While Black voters remained the most loyal group in 2024, they too might feel a little freer to go. Even the historically no-go option for Black voters, the Conservative party, might seem like a possibility. In a significant departure from their traditional approach, the Tories have been making an effort to tackle race and inequality. They commissioned a major review of racial disparities, increased their ethnic diversity in Parliament and delivered the historically most ethnically diverse cabinet to date. It is worth noting that the current leader Kemi Badenoch and her predecessor Rishi Sunak are both of ethnic minority origin.

Labour is yet to appoint a non-white leader. And its record in government is certainly doing very little to dissuade minority voters from looking elsewhere.

Among the failures that could count against them with Black voters are a continuation of the unpopular “hostile environment” immigration policy and an aggressive curtailment of settlement policies. These are unlikely to play well with a group that had already fallen victim to the previous government’s similar policies via the Windrush scandal. Labour’s ineffective implementation of the compensation scheme for the victims of this scandal, who were most likely to identify as British Black Caribbean, only compounds this issue.

More recently, the issue of justice has emerged as a major divide between Labour and its Black supporters. The history of racial inequalities in the justice system is long and trust in judicial institutions among Black Britons is deservedly low. Given this, the current proposals to abolish jury trials could be seen as a betrayal of trust. The proposal is intended to deal with the backlog in the courts but the evidence shows juries reduce discrimination in trials. Black voters report law and order as the most important issue – far more than the other ethnic minority voters – so this is clearly not going to go unnoticed.

Given the lack of action and progress on other important issues for the Black community, such as child poverty and the cost-of-living crisis, Labour should really worry about losing not just their Muslim voters, and the Indian origin minority, but also its most loyal Black voters too. They truly cannot and should not take any of these groups for granted.

The Conversation

Maria Sobolewska received funding from the Economic and Social Research Council.

ref. Is Labour in ‘deep trouble’ with Black voters? What the evidence tells us – https://theconversation.com/is-labour-in-deep-trouble-with-black-voters-what-the-evidence-tells-us-278334

Iran and the Arabian Penisula depend on desalination plants to survive – why water has become a target

Source: The Conversation – UK – By Sanam Mahoozi, Research Associate, City St George’s, University of London

Around 70% of Saudi Arabia’s drinking water comes from desalination plants. In Kuwait and Oman the figure is 90%. Stanislav71/Shutterstock

The Gulf region has been defined by oil for decades. Tankers, pipelines and refineries have long been seen as the region’s most critical – and vulnerable – assets.

In the past few days, US-Israeli strikes hit oil depots in Tehran, with reports emerging of black rain falling for hours afterwards, which has been described in the media as acid rain.

But it is the networks and connections that support access to water and the desalination plants that now sustain daily life.

When oil supplies are restricted and prices escalate, oil “shocks” damage economies. But a water crisis can destabilise societies.

Across the Arabian Peninsula, seawater desalination, which turns saltwater into drinking water, has transformed some of the driest landscapes on Earth into thriving urban societies. Cities such as Dubai, Doha, Kuwait City and Abu Dhabi rely overwhelmingly are massively dependent on desalination plants.

For instance, 70% of Saudi Arabia’s drinking water comes from desalination plants. In Kuwait and Oman the figure is 90%. Without desalination plants, large parts of the region’s modern urban systems would struggle to exist.

Yet this technological achievement has quietly produced a new form of strategic vulnerability. The Gulf‘s water security depends on a relatively small number of massive coastal plants – industrial complexes that operate as the lifelines of entire cities.

The current military conflict has begun to expose this. Missile strikes and drone interceptions have occurred at, or near to, major desalination and water and power complexes in the Gulf. Both Iran and the US have been accused of having targeted these facilities. Even when damage is limited, the proximity of attacks highlights how exposed these facilities are to modern warfare.

Unlike oil pipelines or storage terminals, desalination plants cannot easily be bypassed or replaced. They are fixed, highly complex installations requiring large energy inputs, specialised membranes or thermal systems, and continuous chemical and mechanical treatment processes. Repairing serious damage to a major plant could take months or longer.




Read more:
Persian Gulf desalination plants could become military targets in regional war


The consequences of disruption would be immediate. Most cities in the region have limited water storage capacity. If a major desalination plant was out of action, governments could face the prospect of emergency water rationing for millions of residents within a matter of days. Hospitals, sanitation systems, food production and industry would all be affected simultaneously.

This risk is amplified by the region’s underlying water scarcity. The Middle East is among the most water-stressed regions in the world. Rainfall is low and highly variable, while rising temperatures increase evaporation and water demand. Groundwater aquifers have been heavily depleted across much of the region.

In Iran, declining river flows, prolonged drought and over extraction of groundwater have already left dams running dry. Similar pressures exist across other countries where renewable freshwater resources are extremely limited. Desalination has, therefore, evolved from a supplementary technology into the backbone of urban water systems. This shift has produced what might be called “desalination dependency”: a condition in which entire societies rely on a small number of centralised facilities to maintain their basic water supply.

The scale of this dependency is striking. Roughly 100 million people in the wider region depend directly on desalinated water. The Arabian Peninsula alone accounts for a substantial share of global desalination capacity, and the ten of the largest plants in the world are concentrated along the shores of the Gulf and the Red Sea. As water scarcity intensifies in the region, this dependence is likely to grow. But greater reliance also means greater exposure.

Bahrain says Iran damaged a water desalination plant.

Water infrastructure has historically been vulnerable during conflicts. From Iraq to Syria to Yemen, water treatment plants, pumping stations and reservoirs have been damaged or targeted during conflicts. International humanitarian law recognises this danger. Article 54(2) of protocol additional to the Geneva conventions of August 12 1949, and relating to the protection of victims of international armed conflicts (protocol I), states that:

It is prohibited to attack, destroy, remove, or render useless objects indispensable to the survival of the civilian population, such as foodstuffs, agricultural areas for the production of foodstuffs, crops, livestock, drinking water installations and supplies and irrigation works for the specific purpose of denying them for their sustenance value to the civilian population or to the adverse Party, whatever the motive, whether in order to starve out civilians, to cause them to move away, or for any other motive.

These protections apply to both international and non-international armed conflicts.

Big risks

The humanitarian consequences of disabling these huge desalination plants would be severe. Unlike oil infrastructure, which can sometimes be bypassed through global markets or emergency reserves, urban water supply systems are highly localised. If a desalination plant serving a large metropolitan area was hit and damaged in an attack, there would be few immediate alternatives. Water imports by tanker or emergency desalination units could provide temporary relief, but they could not fully replace the daily output of a large facility.

The ripple effects would extend far beyond drinking water. Sanitation systems would begin to fail, public health risks would rise, and economic activity could slow dramatically. Tourism, industry and services – all pillars of Gulf states’ economies – depend on stable water supplies.

The broader geopolitical implications are equally important. The Gulf is increasingly becoming a testing ground for a new form of infrastructure vulnerability in the age of climate stress: the weaponisation of water production systems. As desalination expands globally – from California and Australia to North Africa and southern Europe – similar vulnerabilities may emerge elsewhere. Coastal megacities facing drought are investing heavily in large desalination facilities to secure future water supplies. The expectations of protection of such infrastructure during conflict will therefore have consequences far beyond the Middle East.

Protecting desalination plants is not merely a regional concern. It is part of a broader challenge of safeguarding the technological systems that sustain modern societies under conditions of environmental scarcity.

Several strategies could reduce risk. Expanding wastewater recycling and replenishing natural water storage areas could diversify water sources. Distributed desalination systems — smaller plants spread across multiple locations — could reduce reliance on single large facilities. Increasing strategic water storage capacity would also provide cities with a buffer against sudden disruptions.

But technical solutions alone cannot address the core issue. The real challenge lies in recognising desalination plants for what they have become: critical humanitarian infrastructure on which entire populations depend.

For much of the 20th century, oil defined the cities of the Gulf. In the 21st century, desalinated water keeps them alive.

The Conversation

Sanam Mahoozi does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Iran and the Arabian Penisula depend on desalination plants to survive – why water has become a target – https://theconversation.com/iran-and-the-arabian-penisula-depend-on-desalination-plants-to-survive-why-water-has-become-a-target-278142

How conversation works – and why people with hearing loss rely more on their powers of prediction

Source: The Conversation – UK – By Ruth Corps, Early Career Research Fellow in Psychology, School of Psychology, University of Sheffield

Benjavisa Ruangvaree Art/Shutterstock

“Ultimately, the bond of all companionship, whether in marriage or friendship, is conversation,” wrote Oscar Wilde.

We often think of conversation as effortless. But beneath its apparent ease lies an extraordinary feat of coordination – a finely tuned dance of listening and speaking.

Summoning a single word in your mind and then saying it takes at least 600 milliseconds. Yet the most common gap between one person finishing a speaking turn and the other beginning is around 200 milliseconds, regardless of the language they are speaking.

This means we usually start talking too quickly to have planned our response after the other person has finished. Somehow, our brains are always ahead of the conversation.

How do we manage this? As we listen, our brains operate like a sophisticated version of predictive text. Instead of waiting for a sentence to finish, we continuously predict how it is likely to end.

In a study with colleagues in the UK and Germany, we found that people with some hearing loss often rely more heavily on these predictive cues to keep conversations flowing. But over time, the effort this requires can have other negative effects.

While smartphones rely on simple word-to-word probabilities, human prediction is far richer. We combine these probabilistic cues with knowledge about the speaker (who they are, what they like, how they usually talk) as well as the surrounding environment and broader topic of conversation.

If someone says, “I’d like to wear the nice …”, your brain immediately narrows the possibilities to things that can be worn — perhaps a tie or a dress. And prediction doesn’t stop there. If the speaker sounds male, listeners may be more likely to predict “tie”; if the speaker sounds female, “dress”.

Prediction also helps us determine when we can speak. As a sentence unfolds, we predict its structure, rhythm, melody and likely final words. These subconscious timing predictions allow us to enter the conversation with remarkable precision, enhancing social connections by avoiding talking over someone or leaving awkward pauses.

A neuroscientist explains human communication. Video: TED.

How hearing loss affects this process

The delicate coordination of conversation relies on our brain having enough cognitive resources to support prediction, response planning and timing. But when hearing becomes more difficult, the brain has to work harder to identify sounds and words, stretching these resources.

For around half of people over 55, hearing loss makes everyday conversation harder work for the brain. Fewer resources are available for higher-level conversational processes, making the roughly 200-millisecond rhythm of turn-taking harder to maintain. This can lead to longer, more disruptive gaps in the conversation.

Until recently, it has been unclear exactly why these longer gaps arise. To what degree do people with hearing loss find it harder to predict when someone will finish speaking? And how much does the extra effort to hear words restrict their ability to plan what to say next?

Our study disentangled these possibilities by testing people aged 50 to 80 years old, some of whom had mild-to-moderate hearing loss. We tested them under listening conditions that ranged from comfortable, clear speech to situations where speech was only just intelligible.

This allowed us to separate the effects of hearing loss from those of more demanding listening conditions. This distinction matters because while both increase listening effort, they may disrupt different aspects of conversation.

Our results revealed a clear pattern. When listening conditions were comfortable, people with hearing loss relied more heavily on predictions of what the other person would say next than those who had clear hearing. Prediction acted as a compensatory strategy for people with hearing loss, helping maintain conversational coordination to a level very similar to those without hearing loss.

However, when listening became more effortful because speech was presented at the quietest level participants could understand, this predictive advantage disappeared. The additional effort needed for those with hearing loss appeared to leave them too little cognitive capacity to support their previously compensatory powers of prediction.

This helps to explain why people with hearing loss can appear perfectly fluent conversational partners in quiet, one-to-one settings, yet struggle in noisy environments where listening becomes much more effortful. Of course, people with full hearing also start to experience this effect in noisy bars or crowded restaurants.

Illustration of two people having an intense conversation.

Benjavisa Ruangvaree Art/Shutterstock

Losing the skill of conversation

Conversation is a high-speed cognitive skill and, like any other skill, it benefits from regular use. When conversation becomes exhausting owing to hearing loss, people may withdraw from social interaction to avoid the effort of staying in sync. Greater social isolation is associated with poorer mental, physical and cognitive health.

But a reduction in the frequency of conversations that someone is having may also weaken the cognitive mechanisms that support them – like a muscle weakens from lack of use. This could add to their reluctance to talk to people. We hope to explore this “use it or lose it” effect in our future research.

Already, we have been surprised by just how much subconscious coordination goes into everyday conversation. Recognising the particular needs – and skills – of people with hearing loss is an important part of maintaining “this bond of all companionship”.

The Conversation

Ruth Corps has received funding from the ESRC and the Leverhulme Trust.

ref. How conversation works – and why people with hearing loss rely more on their powers of prediction – https://theconversation.com/how-conversation-works-and-why-people-with-hearing-loss-rely-more-on-their-powers-of-prediction-277448

La tension de Hubble : peut-on résoudre l’un des plus grands mystères de l’univers grâce aux champs magnétiques ?

Source: The Conversation – in French – By Levon Pogosian, Professor of Physics, Simon Fraser University

Photo d’Abell 209, un immense amas de galaxies déformant l’espace-temps, situé à 2,8 milliards d’années-lumière dans la constellation de la Baleine, prise en juillet 2025 par le télescope spatial Hubble.
(NASA)

Si l’expansion de l’univers est un fait établi, la vitesse à laquelle elle se produit divise les scientifiques.

Deux des meilleures méthodes dont nous disposons pour mesurer le taux d’expansion de l’univers, soit la constante de Hubble, donnent des résultats qui ne concordent pas. Ce problème majeur de la cosmologie moderne est connu sous le nom de « tension de Hubble ».

Nous nous sommes demandé si une théorie proposée initialement pour expliquer l’origine des champs magnétiques cosmiques pouvait nous aider à solutionner le mystère de la tension de Hubble.

Nos récentes recherches explorent la possibilité que des champs magnétiques extrêmement faibles, vestiges des premiers instants suivant le Big Bang, puissent nous aider à résoudre la tension de Hubble, tout en nous offrant un aperçu de la physique à des énergies bien supérieures à celles pouvant être atteintes sur Terre.

Constante de Hubble et tension de Hubble

Les astronomes utilisent la constante de Hubble pour mesurer la vitesse d’expansion de l’univers. Elle tire son nom de l’astronome américain Edwin Hubble, qui a découvert que l’univers était en expansion.

Explication de la constante de Hubble et de la tension de Hubble. (University of Chicago).

Il existe deux approches pour calculer la constante de Hubble. La première est indirecte et repose sur les prédictions de notre modèle cosmologique, ajusté pour correspondre aux motifs du fond diffus cosmologique, soit le faible rayonnement résiduel du Big Bang.

Des instruments tels que le télescope spatial Planck ont mesuré d’infimes fluctuations de cette lumière primordiale, ce qui a permis d’obtenir une constante de Hubble d’environ 67 kilomètres par seconde par mégaparsec (km/s/Mpc). Un parsec est une unité de distance utilisée en astronomie équivalant à environ 3,26 années-lumière, soit 30,9 billions de kilomètres. Un mégaparsec équivaut à un million de parsecs.

La deuxième méthode est plus directe et semblable à celle adoptée par Hubble dans les années 1920 quand il a démontré pour la première fois que l’univers était en expansion. Elle consiste à mesurer la vitesse à laquelle les galaxies lointaines s’éloignent de la nôtre, la Voie lactée, en observant la luminosité des explosions de supernovae dans ces galaxies.

Les supernovae de type Ia sont appelées « chandelles standard », car nous savons que leur luminosité est la même où qu’elles se trouvent. Nous pouvons donc évaluer la distance qui nous en sépare en fonction de leur luminosité apparente.

Pour déterminer leur luminosité intrinsèque, les astronomes utilisent d’autres chandelles standard, comme les étoiles céphéides, dans les galaxies avoisinantes. Ces observations, réalisées à l’aide des télescopes spatiaux Hubble et James Webb, donnent une valeur plus élevée, soit environ 73 km/s/Mpc.

C’est cette différence entre les deux résultats qu’on appelle « tension de Hubble ». La différence entre 67 et 73 peut sembler minime, mais elle est statistiquement très significative. Si les deux méthodes sont correctes, alors le modèle standard de la cosmologie doit présenter une lacune.

Explication de la manière dont les astronomes mesurent les distances cosmiques.(NASA)

D’où viennent les champs magnétiques cosmiques ?

Les champs magnétiques sont partout dans l’univers. Si les planètes et les étoiles produisent leurs propres champs, des lacunes dans notre compréhension ressortent lorsqu’il s’agit d’expliquer les champs magnétiques à très grande échelle qui traversent les galaxies, les amas, voire les vides cosmiques.

L’une des hypothèses est que le magnétisme serait apparu pour la première fois au tout début de l’univers, bien avant la formation des premières étoiles et galaxies. Ces champs magnétiques, appelés « primordiaux », sont étudiés depuis des décennies. La recherche de leurs empreintes dans le fond diffus cosmologique et d’autres données permet d’explorer l’univers primitif et les énergies extrêmes qui auraient généré ces champs.

En 2011, deux d’entre nous (Karsten et Tom) ont relevé que les champs magnétiques primordiaux auraient influencé la recombinaison, c’est-à-dire lorsque les électrons et les protons se sont combinés pour la première fois pour former de l’hydrogène neutre, et que l’univers est passé d’un état opaque à un état transparent. La première lumière capable de voyager librement est ce que nous observons aujourd’hui sous la forme du fond diffus cosmologique.

Si les champs magnétiques primordiaux existent, ils accéléreraient la recombinaison en repoussant et en attirant les particules chargées, rendant la matière grumeleuse. Dans les zones où la densité de particules est plus importante, la probabilité de rencontre et de formation d’hydrogène est plus élevée.

Déplacer le moment où l’univers devient transparent change la taille des motifs observés dans le fond diffus cosmologique. Cela modifie l’unité de mesure des distances cosmiques et, par conséquent, la valeur de la constante de Hubble déduite du modèle, contribuant ainsi à atténuer la tension de Hubble. En 2020, deux d’entre nous (Karsten et Levon) ont démontré cet effet à l’aide d’un modèle simplifié de recombinaison.

Ce que nous avons découvert

Carte créée par l’observatoire Wilkinson Microwave Anisotropy Probe de la NASA représentant le rayonnement micro-ondes émis environ 375 000 ans après la naissance de l’univers.
(NASA/WMAP Science Team)

Dans notre récente publication, nous avons utilisé les premières simulations tridimensionnelles complètes du plasma primordial avec des champs magnétiques intégrés, afin de retracer la formation de l’hydrogène.

Nous avons considéré l’historique de formation de l’hydrogène obtenu grâce à ces simulations pour effectuer des prédictions sur l’apparence que devrait avoir le fond diffus cosmologique en présence de champs magnétiques primordiaux, puis nous avons comparé ces prédictions aux observations du fond diffus.

Le fond diffus cosmologique est extrêmement sensible aux variations de recombinaison. Si les champs magnétiques primordiaux l’avaient modifié d’une manière incompatible avec les observations, cette hypothèse aurait pu être écartée. Or, les données ont montré que notre proposition demeure valable.

L’expertise universitaire, l’exigence journalistique.

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En combinant plusieurs ensembles de données, nous enregistrons une légère préférence constante pour les champs magnétiques primordiaux, comprise entre 1,5 et 3 écarts-types. Il ne s’agit pas encore d’une découverte, mais d’un indice significatif de leur existence.

Par ailleurs, les intensités de champ privilégiées par les données, d’environ 5 à 10 pico-gauss, sont proches de celles qui seraient nécessaires pour que les champs magnétiques des galaxies et des amas proviennent uniquement des germes primordiaux. Un pico-gauss est une unité de mesure de l’intensité des champs magnétiques.

Si les champs magnétiques primordiaux sont confirmés, ils permettraient non seulement d’atténuer la tension de Hubble, mais ils ouvriraient également une nouvelle fenêtre sur l’état de l’univers quelques fractions de seconde après sa naissance, offrant peut-être un aperçu d’événements majeurs tels que le Big Bang.

Nos résultats montrent que cette hypothèse résiste aux tests les plus poussés actuellement disponibles et qu’elle fournit des cibles claires pour les observations futures. Au cours des prochaines années, nous découvrirons si de minuscules champs magnétiques remontant à l’aube des temps ont contribué à façonner l’univers que nous contemplons aujourd’hui, et s’ils sont la clé pour résoudre la tension de Hubble.

La Conversation Canada

Levon Pogosian bénéficie d’un financement du Conseil de recherches en sciences naturelles et en génie du Canada. Les travaux décrits dans cet article ont été rendus possibles en partie grâce au soutien apporté par le BC DRI Group et la Digital Research Alliance of Canada.

Karsten Jedamzik bénéficie d’un financement du Centre national de la recherche scientifique (CNRS) français. Les travaux décrits dans cet article ont été en partie soutenus par l’Agence nationale de la recherche.

Tom Abel bénéficie d’un financement du Département américain de l’Énergie dans le cadre du contrat n° DE-AC02-76SF00515.

ref. La tension de Hubble : peut-on résoudre l’un des plus grands mystères de l’univers grâce aux champs magnétiques ? – https://theconversation.com/la-tension-de-hubble-peut-on-resoudre-lun-des-plus-grands-mysteres-de-lunivers-grace-aux-champs-magnetiques-275611

La guerre en Iran ne se limite pas aux frappes : elle fracture la vie civile et la diaspora, et met à mal la recherche de vérité

Source: The Conversation – in French – By Mina Fakhravar, PhD Candidate, Feminist and Gender Studies, L’Université d’Ottawa/University of Ottawa

La guerre n’ouvre pas automatiquement un chemin vers la liberté. Celle qui se déroule présentement en Iran peut aussi défaire les solidarités, les espaces civils et les forces féministes et minoritaires dont dépend toute émancipation future du pays. La voie que prendra la guerre qu’Israël et les États-Unis y mènent est incertaine, au-delà des analyses, de dénombrement des frappes, des calculs stratégiques, des seuils d’escalade et des rapports de force régionaux.


Ce langage militaire laisse dans l’ombre ce que la guerre fait à la vie ordinaire des millions d’Iraniens. Il ne dit presque rien des maisons qu’on n’a plus le cœur de nettoyer, des tables de haft-sin qu’on prépare dans l’angoisse pour la célébration de Nowruz, le Nouvel An iranien du 20 mars, des enfants qu’il faut rassurer alors que les adultes eux-mêmes vacillent.

Au moment où j’écris, cela fait près de deux semaines que l’Iran subit un blackout numérique imposé, coupant les familles de l’information, de leurs proches, parfois même de toute possibilité de se repérer dans le danger. J’écris depuis cet entre-deux douloureux, avec une vie à moitié ici, à moitié là-bas, dans un pays suspendu entre fumée, peur et silence forcé.

Doctorante irano-canadienne en études féministes, je travaille sur les formes de résistance civile en Iran, en particulier sur les pratiques quotidiennes par lesquelles les femmes résistent aux violences qui leur sont imposées.

Quand la guerre descend dans l’ordinaire

Au-delà des frappes et des ruines, c’est la vie sociale qui se défait. C’est en ce sens que l’anthropologue indienne Veena Das, connue pour ses travaux majeurs sur la violence et la vie ordinaire, aide à lire la situation iranienne : la violence ne reste pas au niveau spectaculaire de l’événement, elle brise les routines, dérègle le sommeil, complique les soins, vide les marchés et altère la capacité même de se projeter.

À cette désorganisation s’ajoute une guerre informationnelle d’une ampleur inédite. Dans un pays presque entièrement privé d’internet, une partie de la population se retrouve renvoyée aux récits filtrés des médias d’État, tandis que circulent ailleurs images recyclées, vidéos trompeuses et contenus générés par l’intelligence artificielle.

Cette surproduction de faussetés, combinée au blackout, n’éclaire pas la guerre : elle épaissit le brouillard dans lequel les civils doivent pourtant continuer à vivre.

Des vies inégalement exposées

L’expérience de la guerre est profondément inégale : la classe, l’âge, la santé et la dépendance pèsent directement sur l’exposition au danger et sur les possibilités de s’en protéger. Celles et ceux qui ont de l’argent, une voiture, des proches ailleurs ou la possibilité de payer quelques minutes de connexion gardent parfois une marge de manœuvre.

Pour les autres, il faut rester, malgré les revenus interrompus, les médicaments plus difficiles à trouver, l’essence plus chère et l’approche du Nouvel An qui vide encore davantage les ressources.

Ce sont aussi les femmes, souvent chargées de nourrir, rassurer et tenir la vie quotidienne, qui absorbent une grande part de ce choc, avec les enfants, les personnes âgées, les femmes enceintes, les malades et même les animaux laissés dans un environnement devenu toxique en raison du bombardement d’installations pétrolières.

Le chaos au service de la répression

À la destruction matérielle s’ajoute une autre menace : l’effacement des traces de la résistance et de la mémoire des violences.

Après les massacres des 8 et 9 janvier, dont la documentation a déjà été largement entravée, le nouveau chaos militaire suspend encore davantage la possibilité de vérifier les morts, d’identifier les disparus, de suivre les enlèvements, de documenter les exécutions et de protéger les détenus.


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Human Rights Watch a déjà décrit l’ampleur des massacres de janvier, tandis que l’ONU et Amnesty alertent aujourd’hui sur les risques accrus pour les prisonniers dans le contexte de guerre et de blackout. Le régime peut ainsi se servir des bombardements pour déplacer l’attention, réactiver la figure de l’ennemi extérieur, resserrer l’appareil policier et réimposer la peur comme mode de gouvernement.

Toute protestation peut désormais être traitée comme une collusion avec « l’ennemi », au point que le chef de la police a averti à la télévision d’État que les forces de sécurité avaient « le doigt sur la gâchette ».

En Iran comme ailleurs. Ainsi, les cinq footballeuses iraniennes qui ont obtenu l’asile en Australie après avoir refusé de chanter l’hymne de leur pays lors d’un match en Coupe d’Asie ont dû être évacuées de leur résidence sécurisée après la révélation de leur localisation. Cela illustre bien que cette répression ne s’interrompt pas sous les bombes, elle se reconfigure.

Un climat malsain au sein de la diaspora

Le 9 mars, Reuters rapportait que Téhéran menaçait de confisquer les biens des Iraniens vivant à l’étranger s’ils étaient trouvés coupables de coopérer avec les États-Unis ou Israël, prolongeant ainsi sa coercition au-delà des frontières.

Des Iraniens de l’étranger, opposés à la fois à la République islamique et à l’invasion militaire, expliquent aujourd’hui être pris en étau entre la menace du régime et l’intimidation de courants royalistes d’extrême droite. Dans certains milieux monarchistes, la condamnation de la guerre et du militarisme étranger est de plus en plus associée à une supposée défense du régime.

Cette logique est allée si loin que des figures publiques pourtant connues pour leur opposition à la République islamique, comme Shirin Neshat et Golshifteh Farahani, ont dû rappeler publiquement qu’être contre la guerre ne signifiait pas être pro-régime.

Cette confusion entretenue, nourrie par les attaques en ligne et l’intimidation, en dit long sur le climat qui traverse aujourd’hui la diaspora iranienne. Dans certains segments de cette diaspora, le désir de renverser la République islamique semble ainsi conduire à une banalisation troublante des effets humains de la guerre, du harcèlement et du silence imposé aux voix dissidentes.

Ni guerre, ni dictature, ni fausse solidarité

Les Iraniens se retrouvent aujourd’hui pris entre plusieurs confiscations de leur parole.

D’un côté, un pouvoir théocratique qui instrumentalise l’anti-impérialisme pour survivre, réactiver l’ennemi extérieur et prolonger la répression. De l’autre, certaines positions anti-guerre qui, faute de nommer clairement la dictature, reprennent parfois les récits du régime ou passent sous silence sa violence. Enfin, des courants qui s’affichent favorables à l’intervention militaire.

Cette guerre est aussi une guerre des signes : drapeaux, slogans, portraits, mots d’ordre, tout devient terrain de lutte pour parler à la place du peuple iranien.

Or on ne choisit pas entre des bourreaux. On peut refuser la guerre, bien sûr. Mais si ce refus ne s’accompagne pas d’une parole claire sur la dictature, il devient une position aveugle face à la violence. Ce n’est plus de la neutralité. C’est une solidarité incomplète, parfois même faussée. Or, dans le chaos, la peur peut rendre acceptable ce qui aurait dû rester inacceptable : un nouvel ordre autoritaire.

La Conversation Canada

Mina Fakhravar ne travaille pas, ne conseille pas, ne possède pas de parts, ne reçoit pas de fonds d’une organisation qui pourrait tirer profit de cet article, et n’a déclaré aucune autre affiliation que son organisme de recherche.

ref. La guerre en Iran ne se limite pas aux frappes : elle fracture la vie civile et la diaspora, et met à mal la recherche de vérité – https://theconversation.com/la-guerre-en-iran-ne-se-limite-pas-aux-frappes-elle-fracture-la-vie-civile-et-la-diaspora-et-met-a-mal-la-recherche-de-verite-277842

Why a short, sharp climate shock affects your pension more than a slow, looming threat

Source: The Conversation – UK – By Narmin Nahidi, Assistant Professor in Finance, University of Exeter

The floods that hit the Valencia area in autumn 2024 put climate risk front and centre of investors’ minds. Vicente Sargues/Shutterstock

When severe floods struck Valencia in late 2024, the damage quickly spread beyond the affected neighbourhoods. Infrastructure was disrupted, insurance claims surged and supply chains were hit across the region. Within days, the financial implications were clear. Events like these illustrate how sudden climate shocks can rapidly enter financial markets.

For many people, this matters more than they might think. Pension funds, insurance portfolios and long-term savings are heavily invested in companies, infrastructure and energy systems exposed to climate risk. As extreme weather events become more frequent and environmental pressures intensify, the way financial markets react to climate risks increasingly affects the economic security of savers.

Yet not all climate risks provoke the same reaction from investors. Sudden events such as floods, storms or even climate-related lawsuits (such as the landmark case brought by green groups against oil giant Shell in the Netherlands) can quickly influence market expectations.

Slower environmental changes – things like rising sea levels, prolonged drought or gradual ecosystem degradation – rarely produce the same immediate financial response. But their long-term economic consequences may ultimately be just as significant.

Understanding why financial markets react unevenly to different types of climate risk leads to an emerging area of research known as neurofinance. This field combines insights from neuroscience and finance to explain how investors evaluate uncertain future outcomes.

Although markets are often described as systems driven by data, models and algorithms, they ultimately reflect the judgements of people – investors, analysts and portfolio managers. Their decisions depend on how risks are perceived and evaluated. Neurofinance research suggests that these decisions are influenced by how the brain processes time, uncertainty, attention and risk.

More distant, but no less risky

One study showed that people often react more strongly to immediate and emotionally vivid threats than to slower or more abstract risks. This can be true even when the long-term consequences of those slower risks are just as serious.

This pattern is not limited to financial decisions. People may respond quickly to an acute danger such as a fire alarm or a storm, while slower but potentially serious risks can attract less urgent responses. In other words, risks that are visible, concrete and near-term tend to command more attention than those that unfold gradually over long periods.

This does not mean that long-term risks are ignored, but it may mean that their influence on decisions emerges more slowly.

This difference in attention is often described using the concept of “salience” – how strongly a particular signal stands out at the point where a decision is made. Risks that are vivid, identifiable and easy to explain are more likely to enter discussions about valuation and investment strategy. More distant or complex risks may receive less attention, even when their potential economic impact is large.

Climate change provides a clear illustration of this dynamic. After all, different types of risk vary significantly in how salient they appear. Some risks emerge suddenly. New laws or regulations, carbon-pricing policies or litigation can quickly alter the outlook for companies and industries.

Because these developments resemble familiar economic shocks, they often attract investors’ attention immediately. Other risks – rising temperatures, shifting rainfall patterns and long-term environmental degradation – typically unfold over decades. Their effects may be significant but are often harder to link to a single moment or event. As a result, they can appear more abstract in day-to-day investment discussions.

A detailed stock market data display showing various stock prices, graphs, and numbers on a digital screen
Sudden, shocking events present clear risks that investors react to rapidly.
amine chakour/Shutterstock

The key difference may lie less in the objective scale of these risks than in how easily they capture people’s attention. Sudden events generate clear signals that investors can process quickly.

This helps to explain why markets sometimes appear highly reactive to climate-related headlines while adjusting more slowly to deeper environmental trends.

For long-term investments such as pension funds, this uneven response presents an important challenge. Pension portfolios are designed to manage risks over decades. Yet financial markets often react most strongly to events that occur suddenly. As a result, portfolios may adjust quickly to regulatory changes or litigation and more gradually to environmental pressures that build over time.

Research also suggests that investors’ views about climate risk do not always translate directly into investment decisions. Surveys indicate that many investors recognise the financial importance of climate change, yet portfolio allocations vary widely. Economists often describe this as the difference between stated views and revealed behaviour in financial decision-making.

Institutional structures within financial markets may reinforce these patterns. Investment managers are frequently assessed on quarterly performance and benchmark comparisons. These incentives naturally draw attention to risks that influence markets in the near term. Slower-moving risks may receive less focus in day-to-day portfolio decisions.

None of this implies that markets are ignoring climate change or behaving irrationally. Financial markets reflect the decisions of millions of individuals and institutions operating under uncertainty and time pressures. But insights from neurofinance suggest that the way risks capture people’s attention influences how quickly they affect decision-making.

Understanding how attention and perception shape financial decisions may help to explain why markets sometimes react dramatically to climate headlines while adjusting more slowly to long-term environmental change. This is a pattern that matters for investors, policymakers and pension-holders alike.

The Conversation

Narmin Nahidi does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Why a short, sharp climate shock affects your pension more than a slow, looming threat – https://theconversation.com/why-a-short-sharp-climate-shock-affects-your-pension-more-than-a-slow-looming-threat-276902

Hooked by Asako Yuzuki: a biting tale of female loneliness and obsession

Source: The Conversation – UK – By Nozomi Uematsu, Lecturer in Japanese Studies (Japanese and Comparative Literature), University of Sheffield

After the sensational reception of her novel Butter (2017, translated into English in 2024), Asako Yuzuki is back with Hooked (translated by Polly Barton) – a novel about loneliness and the sometimes twisted and complicated relationships between women.

The book revolves around two very different women in their 30s in Tokyo. Eriko is a career-driven woman with a stable income in a trading company, born and raised in Tokyo. Shōko is a housewife and blogger who writes about her daily life with her husband.

Despite having taken such different life courses, what they have in common is a sense of loneliness and a struggle to create meaningful connections with other women. When the pair form an unlikely and intense friendship, they experience a brief euphoric connection, feeling like they have become “an invincible duo” for a while.

Japanese fiction in translation, especially contemporary women’s writing, is on the rise. Bestselling translated fiction from Japan – from Sayaka Murata’s Convenience Store Woman (2018) to Emi Yagi’s Diary of a Void (2024) – often focus on single women in Tokyo. Not necessarily career-driven or looking for success in a corporate world, they also typically have no intimate partners or children.

To some extent, the main characters in these novels are not conventional heroines. They don’t need or want to be rescued by Prince Charming; instead, they navigate the expectations placed on them to offer care in other forms. Such pressure comes from their families, workplaces and, more broadly, from society. Amid all of this, they feel a profound sense of loneliness which mirrors growing concerns in Japan.

Japan has long grappled with the issue of severe social isolation. Often, the focus of this loneliness epidemic has been on young men; however, women are starting to feature more in such conversations.

The number of women referred to as hikikomori (extreme social recluses) is increasing. In a 2023 survey by the Japanese government, women represented 45% of hikikomori between the ages of 15 and 39, and 52% of those between 40 and 64. The survey found such social withdrawal was driven by a range of reasons, from domestic violence and abuse to financial hardship and job loss.

In Hooked, as the title suggests, female loneliness is explored through how it can give way to intense female friendships and the dangers of obsession.

Eriko appears to be the epitome of a modern city girl, raised by a happy family and holding a high-earning job. Yet her achilles heel is that she has never had close friendships with other women.

Infatuated with Shōko after their encounter, Eriko advances from being a fan of Shōko’s blog to first being her friend and then her stalker. Shōko, despite also feeling a sense of inferiority about not having female friends, is shocked by Eriko’s obsessive behaviour and rejects her suffocating approach. Their fallout leads to secrets, blackmail and coercion.

The Japanese title, Nairupāchi no Joshikai (Nile perch’s ladies night out), is indicative of the murkier elements in women’s relationships with each other. A Nile perch is a carnivorous fish that grows up to two metres long and weighs up to 200 kilos. Their literal involvement in the story comes from Eriko’s work: she has been preparing to reopen a trade route from Tanzania to distribute them to places like sushi restaurants.

Eriko’s fascination with the fish is not only for their business value, but also their ferocity. She admires how the Nile perch totally desecrates any surrounding ecosystem it enters:

Even in waters across Japan, ecosystems are being destroyed by the unregulated influx of invasive species. The creatures have to compete for food, ecosystems and mates. It doesn’t end until one of the species is wiped out. The result? The creation of a monster.

The Japanese title puts these monstrous fish into a joshikai, which translates as a meeting or gathering (会) of girls or women(女子). This is usually where women gather to eat, drink, chat, console each other and have fun. It is (hopefully) a place for them to support each other.

However, considering the ferocity and vitality of Nile perch, this novel recasts a joshikai as a site of intense competition for survival. As Eriko says to Shōko:

The reason that women’s competitiveness over minor issues like marriage, kids or looks stops them from getting along, even now, isn’t through any desire of their own. It’s because society foists all these standards on us. The world we live in is specifically designed to make us compete.

Yuzuki’s intense and obsessive novel explores the tensions of female solidarity through women seeking the hope and possibility of connection, in a quest to feel less lonely. It interrogates the difficulties that obstruct these connections and how they are rooted in gender inequalities, class differences and precarious employment.

What is fascinating about Hooked is how Yuzuki allows moments of madness to erupt into daily life. At times, the intensity of the characters can make it hard to keep engaging with the book, yet readers will find themselves drawn back to the lives of Eriko and Shōko. These characters are well-rounded figures, powerfully relatable for anyone navigating the complicated dynamics of gendered issues.

The Conversation

Nozomi Uematsu does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Hooked by Asako Yuzuki: a biting tale of female loneliness and obsession – https://theconversation.com/hooked-by-asako-yuzuki-a-biting-tale-of-female-loneliness-and-obsession-278331