Pakistan among regions at greatest risk of 'wet-bulb' temperatures driven by climate change

Volunteers of Edhi Foundation cool down a man with water during a hot day in Karachi on April 11, 2021. (AFP/File)
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Updated 10 August 2023
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Pakistan among regions at greatest risk of 'wet-bulb' temperatures driven by climate change

  • "Wet-bulb" temperature is measurement that accounts not just for air temperature but also how much moisture it holds
  • At upper end, wet-bulb temperatures can cause serious health effects if people can't find a way to quickly cool down

LONDON: A dangerous combination of heat and humidity is sweeping the Gulf region this week, hitting cities from Dubai to Doha.

Dubai, for example, is forecast to see air temperatures hover around 43 degrees Celsius (109 degrees Fahrenheit). But climate experts say air temperature alone can be misleading.

Meteorologists are particularly worried about the "wet-bulb" temperature — a more holistic measurement that accounts not just for air temperature but also how much moisture it holds. In Dubai, humidity this week is expected to be between 35% and 45%.

At the upper end, wet-bulb temperatures can cause serious health effects if people can't find a way to quickly cool down.

Dubai could this week briefly touch wet-bulb temperatures nearing 30C (86F) - roughly the point at which serious health effects could occur - but would need to sustain that temperature for several hours, which isn't yet expected.

HOW IS WET-BULB TEMPERATURE MEASURED?

A wet-bulb measurement is taken by covering a thermometer with a water-soaked cloth. The process of the water evaporating from the cloth, thus lowering the temperature, mirrors how the human body cools down with sweat.

At 100% relative humidity, wet-bulb temperature will be the same as the dry air temperature, but with less humidity it is lower.

HOW DO HIGH WET-BULB TEMPERATURES AFFECT THE HUMAN BODY?

High wet-bulb temperatures are dangerous because humans lose around 80% of heat through sweating, so when both humidity and air temperature are high it becomes harder to shed excess heat.

Sweat evaporates very slowly, if at all, in very humid conditions.

Internal body temperature is around 37C (98F). But humans also generate more heat through exercise.

"You have to lose that - if you don't lose the heat, you just slowly heat up and that can't be good," said Matthew Huber, a global expert on heat stress at Purdue University in the U.S.

If the body cannot cool down it will eventually overheat, triggering respiratory and cardiovascular issues, and even death.

WHAT'S THE THRESHOLD?

This is an area of ongoing research among scientists.

A landmark study co-authored by Huber in 2010 found that a wet-bulb temperature of 35C (95F) persisting beyond six hours could induce hyperthermia in people and cause serious health consequences or death.

While Huber's study assumed more of an ideal scenario —perhaps a person in the shade drinking water — real people might be out exercising in direct sunlight.

Research published in the Journal of Applied Physiology in 2022 suggested that limit could be lower. Scientists placed young, healthy adults in chambers that mimicked high wet-bulb temperatures and had them perform tasks that mirrored those of daily life. They found the limit could be much lower — between 30C (86F) and 31C (88F).

"That's kind of a game changer if that's right," said Huber.

HOW DOES CLIMATE CHANGE AFFECT WET-BULB TEMPERATURES?

Climate change is predicted to affect not just how high wet-bulb temperatures get but also how long they persist. The upper range of wet-bulb temperatures scales directly with the climbing global average temperature.

"If you warm the world by about 1C, then the maximum wet-bulb temperature that might be experienced over much of the world increases by about one degree," said Huber.

The world is on track for 2.7C (4.9F) of global warming by 2100 under current government policies, the United Nations says.

"All of a sudden you have large parts of the world in terms of population that reach the threshold, even with moderate warming," said Huber.

Climate change may also cause dangerous wet-bulb temperatures to last longer. A 2020 study in the Journal of Scientific Advances found that, rather than lasting for only an hour, dangerous wet-bulb temperatures could persist for six or more hours by 2060 — killing anyone who can't take cover.

Overall, extreme humid heat worldwide has doubled in frequency since 1979, the study found.

WHAT AREAS ARE AT HIGHEST RISK?

Tropical regions with a lot of humidity, especially those along the monsoon belt, are generally at greatest risk of experiencing lethal wet-bulb temperatures.

China, India, Bangladesh, Pakistan and Africa's Sahel region are all considered key risk zones.

HAVE WE ALREADY SEEN DEADLY WET-BULB TEMPERATURES?

Small slivers of the world have flirted with lethal wet bulb temperatures. But these punishing conditions only lasted one to two hours at a time, avoiding deadly consequences.

Jacobabad in Pakistan — dubbed the hottest city on Earth — has surpassed a wet-bulb temperature of 35C on at least four occasions.

But many other cities have briefly seen maximum wet-bulb temperatures exceeding 32C, said the Scientific Advances study, which assessed global weather station data. These include La Paz, Mexico; Port Hedland, Australia; and Abu Dhabi, UAE.


Senior political leader shot dead amid escalating militancy in Pakistan’s northwest

Updated 22 November 2024
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Senior political leader shot dead amid escalating militancy in Pakistan’s northwest

  • Mashaal Azad, a PPP leader in Lakki Marwat, was ambushed while going for Friday prayers
  • Attack occurred the day Pakistan’s army chief was in Peshawar to discuss security situation

PESHAWAR: Amid a string of deadly attacks that have claimed the lives of dozens of civilians and security officials in Pakistan’s northwest, unidentified gunmen on Friday shot dead a senior leader of the Pakistan Peoples Party (PPP) in the volatile Lakki Marwat district of Khyber Pakhtunkhwa (KP) province, police said.
The restive district, a hotspot of militant activity, witnessed unprecedented protests in September when police officers, joined by civil society members and tribal elders, staged sit-ins and blocked the Indus Highway.
The demonstrations followed a spate of militant attacks that killed several policemen, prompting demands for enhanced security measures and greater autonomy for the law enforcement agency in counterterrorism operations.
Speaking to Arab News over the phone, the police spokesperson in the district, Shahid Marwat, said the slain PPP leader Mashaal Azad was heading toward Sarai Gambila, a rundown locality on the outskirts of the district’s center, for Friday prayers when he was ambushed by gunmen.
“Mashaal Azad was killed by unidentified bike riders on the Canal Road near Kajoori Hotel within the limits of Sarai Gambila police station,” Marwat said.
The incident occurred on the day Pakistan’s army chief General Asim Munir was visiting Peshawar, the provincial capital of KP, where he vowed action against militants and reiterated the army’s firm resolve to dismantle hostile militant networks.
The killing also follows a gun attack on a convoy carrying members of the minority Shiite community in the Kurram tribal district a day earlier, leaving more than 40 people dead.
Earlier this week, on Tuesday, 10 Pakistan army soldiers and two members of the paramilitary Frontier Constabulary were killed when militants attacked a checkpost in the northwestern Bannu district.
Rabnawaz Marwat, a tribal elder in Lakki Marwat, said the late PPP leader was a long-time and senior party figure who had been a strong voice against militancy in the region.
“Late Azad had served as a member of the provincial council of PPP,” he informed. “He had also served as a student leader of PPP in Lakki Marwat. In addition, he was an active tribal elder who played a leading role in dispute resolution in the region.”
According to the police spokesperson, a report of the incident has been lodged against unidentified persons, and further investigations will be initiated.
“It is mentioned in the report that late Azad had no personal enmity with anyone in the area,” he said. “It seems to be an act of targeted attack by terrorists.”
On Tuesday, Prime Minister Shehbaz Sharif chaired a meeting of civil and military leaders to review the country’s security situation, during which it was agreed to take action against those involved in militant violence.


Pakistan’s first hand-drawn animated film ‘The Glassworker’ makes Oscars eligibility list

Updated 22 November 2024
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Pakistan’s first hand-drawn animated film ‘The Glassworker’ makes Oscars eligibility list

  • The film was released in July, with its director calling it the result of ‘passion and perseverance’
  • Selection committee in the country says it has broken ‘new ground for animation’ in Pakistan

ISLAMABAD: Pakistan’s first hand-drawn animated film, “The Glassworker,” has been named on the list of eligible films for the 97th Academy Awards in both the Animated Feature Film and International Feature Film categories, the Academy of Motion Picture Arts and Sciences announced this week.
Directed by young Pakistani animator Usman Riaz, the film was released in July and features 1,477 cuts and 2,500 individual drawings. The coming-of-age tale follows Vincent, a young apprentice at his father’s glass workshop, and Alliz, a talented violinist and the daughter of a military colonel.
Against the backdrop of a looming war, their relationships with their parents and each other are tested.
“Thirty-one features are eligible for consideration in the Animated Feature Film category for the 97th Academy Awards,” the Academy said on its website, with “The Glassworker” among them.
“Films submitted in the Animated Feature Film category may also qualify for Academy Awards in other categories, including Best Picture,” it added. “Animated features that have been submitted in the International Feature Film category as their country’s official selection are also eligible in the category.”
Five films from the list will be shortlisted for nominations in the Animated Feature Film category, with the ultimate winner announced at the Oscars ceremony scheduled for March 3, 2025.
A team of 250 national and international cast and crew members worked on the film, which was produced by Riaz’s Karachi-based Mano Animation Studios.
The film became Pakistan’s first-ever animated feature to be nominated for Oscars consideration in September.
“Usman and Mano’s work has demonstrated exceptional storytelling and artistry while breaking new ground for animation in Pakistan,” the Academy Selection Committee of Pakistan said earlier while lauding the project. “This achievement will be remembered in our cinematic history.”
Riaz described his effort as a result of “a decade of passion and perseverance” when the film was nominated for Oscars from Pakistan.
“I am deeply humbled by the selection and hope this story resonates with audiences everywhere, showcasing the talent and creativity Pakistan has to offer,” he added. 


Pakistan seal final spot in Under-19 cricket tri-series with dominant win over UAE

Updated 22 November 2024
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Pakistan seal final spot in Under-19 cricket tri-series with dominant win over UAE

  • Pakistan posted their highest total of the tournament, amassing 314 for five in 50 overs
  • UAE’s innings ended at 123 in 37 overs, setting the stage for Pakistan-Afghanistan clash

ISLAMABAD: Half-centuries by Farhan Yousuf, Haroon Arshad, Shahzaib Khan and Usman Khan powered Pakistan’s Under-19 cricket team to a commanding 191-run victory over the United Arab Emirates in the fifth match of the U19 tri-series at the ICC Cricket Academy Ground in Dubai on Friday.
The victory secured Pakistan’s place in the final, where they will face Afghanistan U19 on Tuesday, November 26, at the same venue.
This was Pakistan’s second win over UAE in the tournament, having defeated them by 10 wickets in the opening match.
“Pakistan U19 earn an emphatic 191-run win over UAE U19,” the Pakistan Cricket Board announced in a social media post. “They will play the tri-series final on Tuesday.”
The Pakistan team edged Afghanistan by 13 runs in their previous encounter but suffered a loss to them earlier in the series.
After electing to bat, Pakistan posted their highest total of the tournament, amassing 314 for five in 50 overs.
Left-handed openers Shahzaib Khan (71 off 84) and Usman Khan (50 off 64) provided a solid foundation with a 96-run opening stand. Farhan Yousuf (63 off 50) and Haroon Arshad (54 off 34) then built on the momentum with a brisk 75-run partnership for the fourth wicket, while Faham-ul-Haq contributed a steady 37 off 48. For UAE, Noorullah Ayubi and Uddish Suri picked up two wickets each.
Chasing 315, UAE struggled from the outset, collapsing to 52 for five within 16 overs.
Ayaan Misbah (17 off 46) and Uddish Suri (32 not out) attempted to stabilize the innings with a 21-run stand for the sixth wicket, but Misbah fell to Umar Zaib in the 26th over.
UAE’s innings ended at 123 in 37 overs, with Umar Zaib taking four for 51 and Naveed Ahmed Khan claiming three wickets.
The final group match of the series will be played between Afghanistan and UAE on Sunday, November 24.
 


Pakistan 'will break any hand' threatening Saudi relations — PM Sharif

Updated 22 November 2024
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Pakistan 'will break any hand' threatening Saudi relations — PM Sharif

  • Statement comes after Imran Khan’s wife released a video message widely viewed as critical of the Kingdom
  • Pakistan and Saudi Arabia are close allies, with nearly 3 million Pakistanis living and working in the Kingdon

ISLAMABAD: Prime Minister Shehbaz Sharif on Friday vowed strict action against anyone attempting to undermine Pakistan’s close relations with Saudi Arabia, declaring that his government would “break any hand” threatening ties between the two nations.
Sharif’s statement appeared to reference recent remarks by Imran Khan’s wife, Bushra Bibi, who in a rare public message on Thursday assured state institutions that her jailed husband would not seek revenge against political opponents if he returned to power.
She also made remarks in her video message that were widely viewed as implying that the Saudi government had opposed Khan when he was prime minister from 2018-22.
“Such venom-spitting is an unforgivable crime,” Sharif said while addressing a ceremony on Friday. “I, as the prime minister of Pakistan, want to announce that the nation will break any hand trying to undermine the Pakistan-Saudi friendship.”
“This is not a joke,” he continued. “The allegation is beyond understanding. The biggest national interest is being slaughtered to serve the short-term political interest.”
He criticized the former first lady, whose husband’s PTI party is currently in opposition, saying that the Kingdom had never demanded anything in return from Pakistan for extending economic and diplomatic support but instead always “opened its doors.”
“I think there can be no greater enmity against Pakistan than this [issuing such comments],” he said, adding that Khan’s Pakistan Tehreek-e-Insaf (PTI) party was sacrificing the country’s interest for its political interests.
Sharif said “no one will be allowed to play” with Pakistan’s interests when it concerned “brotherly allies” such as Saudi Arabia.
Earlier, Defense Minister Khawaja Asif also addressed the issue in a press conference, highlighting that over 2.8 million Pakistanis were working in the Kingdom, sending billions of dollars in remittances back to their country every year.
“Our cordial and friendly relationship with Saudi Arabia should not be affected due to someone’s political gains,” he said. “Such a controversial statement is an effort to save PTI’s sinking ship.”
Khan was ousted from the prime minister’s office in a parliamentary vote of no-confidence in 2022, alleging that he was removed by his political rivals and the all-powerful military at the behest of the United States. All three parties deny the accusation.
The cricketer-turned-politician has been in prison since August last year, facing a slew of legal challenges. He denies any wrongdoing, claiming that all cases against him are politically motivated to keep him in jail.
His PTI party is set to kick off a “long march” to stage a protest in Islamabad on Nov. 24, aiming to pressure the government into releasing Khan from prison. Authorities have refused to grant permission to hold the gathering and imposed a ban on public assembly in the capital for two months.


Pakistani stocks break psychological 99,000 barrier on optimism over rates, reserves

Updated 22 November 2024
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Pakistani stocks break psychological 99,000 barrier on optimism over rates, reserves

  • An analyst attributes the intraday rally to broad-based gains across most economic sectors
  • The stock market has remained bullish since the government slashed policy rate in November

ISLAMABAD: The Pakistan Stock Exchange (PSX) on Friday breached a major psychological barrier, surging past 99,000 points during intra-day trading before settling at 97,798.23, as analysts attributed the rally to investor optimism driven by falling lending rates and higher foreign exchange reserves.
The benchmark KSE-100 index climbed 2,057.40 points by 11:10 am, reaching 99,385.79 points from the previous close. However, the index closed at 97,798.23, marking an increase of 469.84 points or 0.48 percent.
Analyst Ahsan Mehanti of Arif Habib Corporation said bank levies on large deposits, surging global oil prices, and rupee stability were fueling investor optimism.
“Stocks remained bullish, led by scrips across the board, as investors weighed falling lending rates and the imposition of bank levies on large deposits following a drop in government bond yields,” he told Arab News. “Surging global crude oil prices, rupee stability, and higher forex reserves played a catalytic role in the record surge at the PSX.”
Last month, Pakistan’s external current account recorded a surplus of $349 million, marking the third consecutive month of surplus and the highest in this period. The current account reflects a nation’s transactions with the world, encompassing net trade in goods and services, net earnings on cross-border investments and net transfer payments.
A surplus indicates that a country is exporting more than it is importing, thereby strengthening its foreign exchange reserves.
A bullish trend has been observed in the stock market since Pakistan’s central bank cut its key policy rate by 250 basis points, bringing it to 15 percent earlier this month. Economic indicators have also steadily improved since securing a 37-month, $7 billion bailout from the International Monetary Fund (IMF) in September.
In the past, the country faced a prolonged economic crisis that drained its foreign exchange reserves and saw its currency weaken amid double-digit inflation. Last year, Pakistan narrowly avoided a sovereign default by clinching a last-minute $3 billion IMF bailout deal.