'So hot you can't breathe': Extreme heat hits the Philippines
Heat index reaches 47 degrees Celsius
The Philippines ranks among the countries most vulnerable to the impacts of climate change.
A driver of a horse-drawn carriage pours water on his horse as they takes shelter under a tree along a road in Manila.
Extreme heat scorched the Philippines on Wednesday, forcing schools in some areas to suspend in-person classes and prompting warnings for people to limit the amount of time spent outdoors.
The months of March, April and May are typically the hottest and driest in the archipelago nation, but conditions this year have been exacerbated by the El Nino weather phenomenon.
"It's so hot you can't breathe," said Erlin Tumaron, 60, who works at a seaside resort in Cavite province, south of Manila, where the heat index reached 47 degrees Celsius on Tuesday.
"It's surprising our pools are still empty. You would expect people to come and take a swim, but it seems they're reluctant to leave their homes because of the heat."
The heat index was expected to reach the "danger" level of 42C or higher in at least 30 cities and municipalities on Wednesday, the state weather forecaster said.
The heat index measures what a temperature feels like, taking into account humidity.
There was a 50 percent chance of the heat intensifying in the coming days, said Ana Solis, chief climatologist at the state weather forecaster.
"We need to limit the time we spend outdoors, drink plenty of water, bring umbrellas and hats when going outdoors," Solis told AFP.
Solis said El Nino was the reason for the "extreme heat" affecting swathes of the country.
Around half the country's provinces are officially in drought.
The northern municipality of Aparri endured a heat index of 48C on Tuesday, the highest in the country, and was expected to hit 45C on Wednesday.
The actual maximum air temperature was 36.4C on Tuesday, with 35C forecast for Wednesday.
"It's really hot here," Eric Vista of the municipal disaster agency told AFP.
Vista said a shower of rain on Tuesday night offered some temporary relief, but it was "back to being super hot" on Wednesday.
Sweltering temperatures in the capital Manila forced many schools to switch to remote learning. The heat index reached 45C on Tuesday and was expected to hit 44C on Wednesday.
Tuesday's actual high in the city was 37.1C.
In Dagupan city, north of Manila, university employee Edz Alteros said she and her colleagues no longer went out for lunch because of the heat.
The heat index there reached 47C on Tuesday.
"We get somebody to buy food and we eat inside the office," Alteros, 27, said.
"The air conditioning is set at 14-18C during the hottest part of the day, but we ease up at other times to prevent the aircon breaking down."
Global temperatures hit record highs last year, and the United Nation's weather and climate agency said Tuesday that Asia was warming at a particularly rapid pace.
The Philippines ranks among the countries most vulnerable to the impacts of climate change.
Extreme heat scorched the Philippines on Wednesday, forcing schools in some areas to suspend in-person classes and prompting warnings for people to limit the amount of time spent outdoors.
The months of March, April and May are typically the hottest and driest in the archipelago nation, but conditions this year have been exacerbated by the El Nino weather phenomenon.
"It's so hot you can't breathe," said Erlin Tumaron, 60, who works at a seaside resort in Cavite province, south of Manila, where the heat index reached 47 degrees Celsius on Tuesday.
"It's surprising our pools are still empty. You would expect people to come and take a swim, but it seems they're reluctant to leave their homes because of the heat."
The heat index was expected to reach the "danger" level of 42C or higher in at least 30 cities and municipalities on Wednesday, the state weather forecaster said.
The heat index measures what a temperature feels like, taking into account humidity.
There was a 50 percent chance of the heat intensifying in the coming days, said Ana Solis, chief climatologist at the state weather forecaster.
"We need to limit the time we spend outdoors, drink plenty of water, bring umbrellas and hats when going outdoors," Solis told AFP.
Solis said El Nino was the reason for the "extreme heat" affecting swathes of the country.
Around half the country's provinces are officially in drought.
The northern municipality of Aparri endured a heat index of 48C on Tuesday, the highest in the country, and was expected to hit 45C on Wednesday.
The actual maximum air temperature was 36.4C on Tuesday, with 35C forecast for Wednesday.
"It's really hot here," Eric Vista of the municipal disaster agency told AFP.
Vista said a shower of rain on Tuesday night offered some temporary relief, but it was "back to being super hot" on Wednesday.
Sweltering temperatures in the capital Manila forced many schools to switch to remote learning. The heat index reached 45C on Tuesday and was expected to hit 44C on Wednesday.
Tuesday's actual high in the city was 37.1C.
In Dagupan city, north of Manila, university employee Edz Alteros said she and her colleagues no longer went out for lunch because of the heat.
The heat index there reached 47C on Tuesday.
"We get somebody to buy food and we eat inside the office," Alteros, 27, said.
"The air conditioning is set at 14-18C during the hottest part of the day, but we ease up at other times to prevent the aircon breaking down."
Global temperatures hit record highs last year, and the United Nation's weather and climate agency said Tuesday that Asia was warming at a particularly rapid pace.
The Philippines ranks among the countries most vulnerable to the impacts of climate change.
The 'wet-bulb' set to kill hundreds of thousands of people if temperatures and humidity levels continue to rise
Temperatures are continuing to rise to fresh all-time highs as global warming accelerates. People have started to die because of the extreme heat and it’s only a matter of time before the “wet-bulb” effect will kill large numbers of people.
Humans’ internal temperature is ideally supposed to be 36.6C, but they can only tolerate a relatively tight band of hotter temperatures. The wet-bulb effect kicks in when temperatures rise to 35C or more on the wet-bulb scale, coupled with very high humidity that prevents sweat from evaporating. The evaporation of sweat accounts for 80% of the cooling of the human body. If the body cannot cool down it will eventually overheat, triggering respiratory and cardiovascular issues and even death. If the victim cannot quickly find another way to cool off then the wet-bulb effect kills within six hours, according to a landmark study in 2010, reports Reuters.
Note that confusingly, the wet-bulb temperature includes an assumption of near 100% humidity and is thus not directly comparable with simple temperature measures, which can easily be far in excess of 35C and non-lethal.
The wet-bulb effect gets its name from measuring the temperature 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, as there is no evaporation because the air is already saturated with water.
Wet-bulb conditions have been rare, but the death toll from overheating is starting to rise, mainly amongst the old and medically vulnerable. And this spring has seen fresh extreme temperatures across the world breaking all-time highs that were only set last year – the hottest on record.
India heatwave
Indian TV presenter Lopamudra Sinha collapsed while reading the news on April 21 on the Doordarshan news channel and had to be revived by her colleagues during the broadcast.
Sinha said she was feeling unwell before the broadcast but attempted to carry on after having a glass of water. The Doordarshan anchor slumped on her seat, fainting on air while ironically reporting live on the heatwave updates sweeping West Bengal. Sinha said she had fainted "due to intense heat and because her blood pressure plummeted suddenly". The anchor also said that, due to some snag in the cooling system, there was extreme heat inside the studio.
India is being seared by a heatwave that has seen temperatures range from 40C to 46C, which are starting to approach the upper band of what humans can tolerate.
African deaths
The situation in Mali in Africa is even worse, where temperatures have rocketed to over 48C and where one hospital has reported hundreds of deaths as a result of the extreme heat.
A number of countries in the Sahel region and across West Africa were hit by a strong heatwave that began in March and continued into April, with Mali and Burkina Faso being the worst affected.
The Gabriel Toure Hospital in Bamako, Mali’s capital, recorded 102 deaths in the first days of April during the worst of the heatwave, the BBC reported. About half of those that died were over 60 years of age. These deaths were more probably not the direct result of wet-bulb conditions, but stress caused by extreme heat and heatstroke; the hospital said that “heat played a role” in many of these fatalities.
Climate change has raised temperatures 1.5C higher than normal in Mali and Burkina Faso, and made the night even hotter at 2C above the average.
Gulf states wet-bulb
The Gulf states came close to wet-bulb conditions last August when a wave of extreme heat and very high humidity swept the region, hitting cities from Dubai to Doha. This year Dubai has been hit again by extreme weather, after a whole year’s worth of rain fell on the United Arab Emirates’ (UAE) capital in a single day, turning the runways at the international airport into a lake and flooding the metro.
Rain by itself is not life-threatening, but last year temperatures soared to 43C in August coupled with 35-40% humidity that comes close to being life-threatening.
And humidity is expected to rise rapidly. As bne IntelliNews reported in a deep dive into changing rainfall levels, with each one degree rise in temperature water vaporisation increases by 7%. As water vapour is itself a greenhouse gas (GHG), the more humid the air, the faster temperatures will rise.
The almost wet-bulb conditions in the Gulf didn’t last very long; they only become life-threatening if they persist. But a 2020 study in the Journal of Scientific Advances found that dangerous wet-bulb temperatures could increase from approximately one to two hours that has been occasionally recorded in Asia and the Middle East, to six or more hours by 2060, killing anyone who can't take refuge from the heat and humidity.
Tropical regions with a lot of humidity, especially those along the monsoon belt, are generally at greatest risk of experiencing lethal wet-bulb temperatures, including China, India, Bangladesh, Pakistan and Africa's Sahel region, which are all classed as key risk zones.
“The hottest city on earth”, Jacobabad in Pakistan, has passed the wet-bulb threshold four times and La Paz, Mexico, Port Hedland, Australia, and Abu Dhabi, UAE have also breached the limit, according to the 2020 study that detailed which countries are at risk.
Global warming is accelerating
The problem is only set to get worse. As bne IntelliNews reported, according to some estimates around 3bn people will find themselves living in countries that have become uninhabitable by 2070, say scientists due to rising temperatures.
Officially the world is only 1.2C warmer than the long-term pre-industrial benchmark established in Paris in 2015. With average global temperatures 1.2C warmer, scientists say the extreme heatwave in Mali should happen once every 200 years, but if global temperatures breach 2C, powerful heat waves would happen every 20 years, according to climate models.
Recently some scientists have been asking if climate change is accelerating following the unprecedented increases in temperature in 2023. Temperatures were 1.5C higher than the pre-industrial benchmark every day of last year, more than the Paris accords’ maximum recommended level, and are on course to repeat that this year. That doesn’t mean the Paris target has already been missed, as the 1.5C target is an average over three years and so still less than 1.5C, but clearly that threshold will be surpassed by the end of 2025 if nothing changes.
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