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[EN VIDÉO] Climate change: how to protect our cities from heatstroke? To limit temperatures in urban areas during summer heat waves, this question must be considered right from the design of developments, residential or business buildings, roads, traffic plans, etc. A European study program, Urban Fluxes, lays the groundwork for better building the cities of tomorrow.
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More than 10% of the world’s population has been affected by a wave and swell
Note that, offshore, we will more readily speak of…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/7/a/0/7a0ae575e0_132287_vague.jpg” data- url=”https://www.futura-sciences.com/planet/definitions/ocean-wave-15182/” data-more=”Read more”>vague de Physicists refer to heat as thermal energy. In the international system, it is therefore measured in joules (J). Heat corresponds more precisely to a transfer…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/7/3/5/735709801b_92578_chaleur.jpg” data-url=” https://www.futura-sciences.com/sciences/definitions/physics-heat-15898/” data-more=”Read more”>heat outsized, i.e. one billion people. The peak of intensity was reached last weekend with exceptional values recorded: Pakistan recorded 49.5°C in Nawabshah and 49°C in Jacobabad. In India, the mercure rose to 47.2°C in Khanpur and Banda. For these two countries, this represents temperatures of 5 to 10°C above the averages of saison. During the night from Sunday to Monday, the minimum temperatures remained excessively high: between 29 and 32°C.
49.5°C: this is the temperature recorded on May 1, 2022 in Nawabshah #Pakistan. Up to 47.2°C in Banda #Inde and Jacobabad #Pakistan April 30, 2022.
44.6°C: this is the AVERAGE TEMPERATURE for the afternoons of April 2022 in Nawabshah (the hottest month of April ever recorded!). pic.twitter.com/1zSFgVMFv5
– Dr. Serge Zaka (Dr. Zarge) (@SergeZaka) May 2, 2022
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Although these temperature records are impressive, it is more the duration of the event which is remarkable at the meteorological level: these scorching temperatures resisted for six weeks, from mid-March to early May. Remember that the month of March 2022 was the hottest recorded since the beginning of the records weather report, i.e. for 122 years. The nationally recorded average temperature in March stood at 33.1°C, beating the 32.7°C of March 2021. For northern and central India, the month of April 2022 also hottest summer on record. But nationally, it is the fourth hottest April on record since records began.
Nearly 8,000 fires in 3 days
This extreme heat, combined with extremely dry soils with a 72% deficit of precipitation in March, favored the outbreak of fires. Over 7,800 forest fires were reported in the space of three days late last week in areas of Maharashtra, Uttar Pradesh, Odisha, Madhya, Pradesh and many others. The multiplication of fires and the loss of field crops have caused the wheat price since the end of March.
Nearly 300 fires considered “major” have ravaged natural areas, including the Siberian Tiger Reserve. © Patrick Straub
It is the largest existing feline and one of the most powerful predators. It feeds mainly on large herbivores:…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/d/c/b/dcbc82a1b4_50038902_800px-malayan-tiger-cubs.jpg ” data-url=”https://www.futura-sciences.com/planet/definitions/zoology-tiger-12784/” data-more=”Read more”>tigers Melghat, located in Amravati. Many fires would also have started in photovoltaic power plants. The heat was so intense that the facilities overheated and caught fire. Other fires broke out in open landfills in large cities, generating particularly harmful pollution.
???????? India: a giant fire has been raging for 4 days on the landfill site near Delhi. The country is experiencing a heat wave not seen for more than 120 years, with temperatures exceeding 50°C. The human and natural consequences could be terrible. pic.twitter.com/5SwhjgsmIK
— ???????????????? ???????????????????????????? ???????????? ???????????????????????????? (@72powpow) April 30, 2022
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A persistent heat dome in question
While most people in South Asia, India and Pakistan in particular, do not have access to air conditionerand mostly work outside, concern is growing for the next few weeks: the month of May is generally the hottest month of the year, just before the monsoon which begins in June. The persistence of the heat dome over these countries in March and April is probably partly linked to the La Niña climate phenomenon, which will persist until the end of the summer. La Niña, a cooling of the waters of the Pacific which has consequences for the climate world, is known to generate long warm periods, in a repetitive way, on India. Moreover, according to the IPCCsouthern Asia is the area most affected by the increase in heat waves linked to the Causes and consequences of global warming
According to experts from the IPCC, the Intergovernmental Panel on Climate Change, global warming of the planet…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/ midioriginal/e/3/b/e3b72826bf_114784_global-warming-illustration.jpg” data-url=”https://www.futura-sciences.com/planete/definitions/climate-change-global-warming-13827/” data- more=”Read more”>global warming.
In summary, extremes have always existed but human influence modifies their statistics and favors the emergence of very rare/exceptional phenomena, even at the current level of global warming (+1.1°C)
16/N pic.twitter.com/MOlk88A2Hz— Christophe Cassou (@cassouman40) May 2, 2022
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After a month and a half of heat wave, the phenomenon is coming to an end in the next few days: temperatures are already dropping by 3 to 5°C on Monday, and will drop back down to normal levels in the middle of the week. A further rise in temperatures is expected next week.
Brutal & record breaking heat is testing power and health infrastructure to the limit in some of the most densely populated places on the planet.
The heat in Southern & Western Asia for March & April really stands out for both longevity and intensity. pic.twitter.com/ebYNPLkrz8
— Scott Duncan (@ScottDuncanWX) April 29, 2022
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Heatwave in India: temperatures approaching 50°C for several days!
Article of Karine Durandpublished on April 25, 2022
After experiencing its hottest March on record, India is once again facing a heat wave that will continue until the end of the week, with extreme temperatures from the northwest of the country to Pakistan.
The month of March 2022 was indeed the hottest recorded since the beginning of weather records, i.e. for 122 years. The average temperature recorded at the national level over the month rose to 33.1°C, beating the 32.7°C of March 2021. These extremely hot conditions, with peaks over 40°C regularly observed, associated to a 72% rainfall deficit in March, favored the development offires early and exploded the price of History of wheat, this plant of the genus Triticum
Historically, during the Middle Ages and the Renaissance, the word bleds referred to annual crops. In the 18th century, the term “wheat”…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/2/9/8/298206a138_102689_ble-cereale.jpg” data- url=”https://www.futura-sciences.com/planete/definitions/botanique-ble-16233/” data-more=”Read more”>corn. April continues in the same vein, with eight days already with temperatures above 40°C since the beginning of the month. Sunday, April 24, the indian meteorological service again recorded a temperature of 44°C in Banda (Uttar Pradesh) and 42.7°C in Barmer (Rajasthan).
Since the beginning of April, strong heat from the African desert to the Tibetan plateau & Central Asian plain.
The heat wave has come on #Inde#Pakistan will lead to temperatures >45°C when the monsoon has not started but humidity is already increasing.
➡ Difficult body tolerance! pic.twitter.com/X0VoUAsT1Y— Christophe Cassou (@cassouman40) April 23, 2022
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40 to 49°C expected this week
In connection with a powerful anticyclone which traps a heat dome over the country all week, temperatures will rise again over the next five days: in Delhi, the mercury is expected to climb to 44°C, while the average for the month is generally 37 °C. The states of Bihar, Odisha, West Bengal and Gujarat will also be affected by temperatures above 40°C, i.e. temperatures 5 to 9°C above seasonal averages. In the extreme northwest of India, as well as on the side of Pakistanextreme heat spikes of 47°C or even 49°C are also possible.
When the earth just becomes uninhabitable… Pakistanis and Indians face a deadly heat wave in the coming days with temperatures up to 49°C.
Again a health/agriculture/electricity production triptych hidden behind this new crisis. pic.twitter.com/wI7BXPL4Yk— Haziza Emma (@HazizaEmma) April 24, 2022
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India is one of the countries in the world where the frequency of heat waves has increased the most in 40 years: the indian meteorological service counted 413 days with temperatures above 40°C between 1981 and 1990, and 600 days between 2011 and 2020.
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