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Reuters

Deadly heatwaves scorched cities on four continents as the Northern Hemisphere marked the start of summer, a sign that climate change may again help to fuel record-breaking heat that could surpass last summer as the warmest in 2,000 years.
Record temperatures in recent days were suspected to have caused hundreds, if not thousands, of deaths across Asia and Europe.
In Saudi Arabia, nearly two million Muslim pilgrims were finishing the haj at the Grand Mosque in Mecca this week. But hundreds have died during the journey amid temperatures above 51 degrees Celsius (124 Fahrenheit), according to reports from foreign authorities.
Egyptian medical and security sources told Reuters on Thursday that at least 530 Egyptians had died while participating – up from 307 reported a day earlier. Another 40 remain missing.


Agence France-Presse reported the haj death toll was at least 1,081, according to its tally of 10 countries that reported fatalities during the pilgrimage.
Countries around the Mediterranean have also endured another week of blistering high temperatures that have contributed to forest fires from Portugal to Greece and along the northern coast of Africa in Algeria, according to the US National Oceanic and Atmospheric Administration’s Earth Observatory.
In Serbia, meteorologists forecast temperatures of around 40 degrees this week as winds from North Africa propelled a hot front across the Balkans. Health authorities declared a red weather alert and advised people not to venture outdoors.
Belgrade’s emergency service said its doctors intervened 109 times overnight to treat people with heart and chronic health conditions.
In neighbouring Montenegro, where health authorities also warned people to stay in the shade until late afternoon, tens of thousands of tourists sought refreshment on the beaches along its Adriatic coast.
Europe this year has been contending with a spate of dead and missing tourists amid dangerous heat. A 55-year-old American was found dead on the Greek island of Mathraki, police said on Monday – the third such tourist death in a week.
A broad swathe of the eastern US was also wilting for a fourth consecutive day under a heat dome, a phenomenon that occurs when a strong, high-pressure system traps hot air over a region, preventing cool air from getting in and causing ground temperatures to remain high.
New York City opened emergency cooling centres in libraries, senior centres and other facilities. While the city’s schools were operating normally, a number of districts in the surrounding suburbs sent students home early to avoid the heat.

Meteorological authorities also issued an excessive heat warning for parts of the US state of Arizona, including Phoenix, on Thursday, with temperatures expected to reach 45.5 degrees.
In the nearby state of New Mexico, a pair of fast-moving wildfires abetted by the blistering heat have killed two people, burned more than 23,000 acres and destroyed 500 homes, according to authorities. Heavy rains could help temper the blazes, but thunderstorms on Thursday were also causing flash flooding and complicating firefighting efforts.
All told, nearly 100 million Americans were under extreme heat advisories, watches and warnings on Thursday, according to the federal government’s National Integrated Heat Health Information System.
The brutal temperatures were expected to begin easing in New England on Friday, the weather service said, but New York and the mid-Atlantic states will continue to endure near-record heat into the weekend.
India’s summer period lasts from March to May, when monsoons begin slowly sweeping across the country and breaking the heat.
But New Delhi on Wednesday registered its warmest night in at least 55 years, with India’s Safdarjung Observatory reporting a temperature of 35.2 degrees at 1am.

Temperatures normally drop at night, but scientists say climate change is causing nighttime temperatures to rise. In many parts of the world, nights are warming faster than days, according to a 2020 study by the University of Exeter.
New Delhi has clocked 38 consecutive days with maximum temperatures at or above 40 degrees since May 14, according to weather department data.
An official at the Indian health ministry said on Wednesday there were more than 40,000 suspected heatstroke cases and at least 110 confirmed deaths between March 1 and June 18, when northwest and eastern India recorded twice the usual number of heatwave days in one of the country’s longest such spells.
Gaining accurate death tolls from heatwaves, however, is difficult. Most health authorities do not attribute deaths to heat, but rather the illnesses exacerbated by high temperatures, such as cardiovascular issues.
Authorities therefore undercount heat-related deaths by a significant margin – typically overlooking thousands if not tens of thousands of deaths.
The heatwaves are occurring against a backdrop of 12 consecutive months that have ranked as the warmest on record in year-on-year comparisons, according to the European Union’s climate change monitoring service.

The World Meteorological Organization says there is an 86 per cent chance that one of the next five years will eclipse 2023 to become the warmest on record.
While overall global temperatures have risen by nearly 1.3 degrees above pre-industrial levels, climate change is fuelling more extreme temperature peaks – making heatwaves more common, more intense and longer-lasting.
On average globally, a heatwave that would have occurred once in 10 years in the pre-industrial climate will now occur 2.8 times over 10 years, and it will be 1.2 degrees warmer, according to an international team of scientists with the World Weather Attribution (WWA) group.
Scientists say heatwaves will continue to intensify if the world continues to unleash climate-warming emissions from the burning of fossil fuels.
If the world hits 2 degrees of global warming, heatwaves would on average occur 5.6 times in 10 years and be 2.6 degrees hotter, according to the WWA.


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Extreme weather

Heatwaves kill hundreds, millions swelter as summer in Northern Hemisphere begins

A Muslim pilgrim tries to cool off in Saudi Arabia’s holy city of Mecca. Photo: AFP

 Blistering high temperatures have fanned forest fires in Greece. Photo: Reuters

A man cools off in New York City. Photo: AFP

Jolie from China, who says she is afraid of the sun, amid a heatwave in Rome, Italy. Photo: Reuters

Severe heat proves fatal for older Malaysia, Indonesia haj pilgrims: ‘saw people collapse’

A pilgrim pours water on his head to cool down from the extreme heat during this year’s haj. Photo: Reuters

A Muslim pilgrim in Saudi Arabia uses an umbrella as a sun shield amid hot weather during the annual haj pilgrimage on Sunday. Photo: Reutes

Muslim pilgrims are sprayed with water amid the extreme heat of this year’s haj. Photo: Reuters

A Muslim pilgrim pours water on his head to cool down from the heat on Monday. Photo: Reuters

Hundreds die on haj pilgrimage amid extreme heat in Saudi Arabia: reports

Muslim pilgrims use umbrellas to shield themselves from the sun. Photo: AP

 Mecca’s Grand Mosque on Monday. Photo: AFP

The burning sun and suffocating hot weather has been relentless. Photo: AFP

Hong Kong to face hotter-than-normal summer, more heatwaves due to climate change: experts

Hong Kong has recorded its hottest summer solstice since 1980. Photo: Dickson Lee

India’s urban growth has turned its cities into ‘heat traps’, making hot summers worse

People walk past a mirage in front of the India Gate during a hot summer day in New Delhi on Monday. Photo: AFP

A woman washes her face with water to cool off during a hot summer day near the India Gate in New Delhi on Monday. Photo: AFP

Extreme heat: cooler holidays trending as climate change’s effects felt in Europe and Asia

A tourist in Banff, Canada. Interest in “coolcations” – holidays in cooler places – is growing as climate breakdown pushes summer temperatures to record highs from Southeast Asia to Europe. Photo: Shutterstock

Tourists take pictures near the Acropolis, which was closed to visitors because of an early heatwave, in Athens in June, 2024. Photo: AFP

Muslim pilgrims pray beneath a cooling mist during the haj, in Saudi Arabia, in June, 2024. Photo: Reuters

Despite being seen as a cooler alternative to cities further south, the sun does occasionally shine in Copenhagen, Denmark. Photo: Getty Images

The Darjeeling Himalayan Railway. Darjeeling has long been a holiday destination for Indians wanting to escape the heat. Photo: Shutterstock

Electric tuk-tuks at the Raffles Grand Hotel d’Angkor, in Siem Reap. Photo: Raffles

News

World

Heatwaves are occurring against a backdrop of 12 consecutive months that are the warmest on record


Deadly heatwaves are scorching cities on four continents – a sign that climate change may again help to fuel record-breaking heat that could surpass last summer as the warmest in 2,000 years.
