Thẻ: Heat wave

Asia’s prolonged April heatwave concerns scientists

~ Đào Thu Hằng ~ Bình luận về bài viết này

ft.com

‘Exceptional’ conditions raise fears about a hotter 2023

Scatterplot chart showing high temperature records for countries in continental Asia

Countries across Asia suffered soaring April temperatures, prompting warnings from scientists that 2023 could set new heat records as climatic patterns change and global warming accelerates. Temperatures climbed to highs of 45C in Myanmar, 44.5C in India and 41.9C in China, according to the climatologist and weather historian Maximiliano Herrera, with Thailand and Laos breaking all-time high records.

At least 13 people were reported to have died from heat stroke in Mumbai, India, while parts of Bangladesh endured power cuts as electricity demand surged in the unusual conditions. More than 100 weather stations in China recorded all-time high temperatures for April.

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Climate Change made devastating early heat in India and Pakistan 30 times more likely

~ Đào Thu Hằng ~ Bình luận về bài viết này

“The 2022 heat wave in India and Pakistan is an extreme weather event which has resulted in the hottest March in India since 1901. The hot season arrived unusually early in the year and extended into April, affecting a large part of India’s northwest and Pakistan”. Wikipedia

worldweatherattribution.org

Since the beginning of March, India and Pakistan and large parts of South Asia experienced prolonged heat, that at the time of writing, May 2022, still hasn’t subsided.

March was the hottest in India since records began 122 years ago and in Pakistan, the highest worldwide positive temperature anomaly during March was recorded and many individual weather stations recorded monthly all-time highs through March. At the same time, March was extremely dry, with 62 percent less than normal rainfall reported over Pakistan and 71 percent below normal over India, making the conditions favourable for local heating from the land surface. The heatwave continued over the month of April and reached its preliminary peak towards the end of the month. By the 29th of April, 70 percent of India was affected by the heatwave.

While heatwaves are not uncommon in the season preceding the monsoon, the very high temperatures so early in the year coupled with much less than average rain have led to extreme heat conditions with devastating consequences for public health and agriculture. The full health and economic fallout, and cascading effects from the current heat wave will however take months to determine, including the number of excess deaths, hospitalisations, lost wages, missed school days, and diminished working hours. Early reports indicate 90 deaths in India and Pakistan, and an estimated 10-35 percent reduction in crop yields in Haryana, Uttar Pradesh, and Punjab due to the heatwave.

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Information and public health advice: heat and health

~ Thiều Linh ~ Bình luận về bài viết này

Protecting health from rising temperatures and extreme heat

WHO

Key facts

  • Population exposure to heat is increasing due to climate change, and this trend will continue. Globally, extreme temperature events are observed to be increasing in their frequency, duration, and magnitude. Between 2000 and 2016, the number of people exposed to heat waves increased by around 125 million. In 2015 alone, 175 million additional people were exposed to heat waves compared to average years.

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Brace yourself for more record heat

~ Đào Thu Hằng ~ Bình luận về bài viết này

DW

Current high temperatures in the northern hemisphere are set to continue. Climate change means we’re likely to experience very hot summers more often — even though we’re already struggling with health consequences now.

    
Bildergalerie : Sommer / Abkühlung (picture-alliance/dpa)

Europe is in the throes of a heat wave, and it’s not letting up — on the contrary. More hot air is coming over from Africa, and is even bringing desert dust with it.

Southwestern European countries are being hit especially hard. Authorities in Portugal issued a nationwide health warning, including for dust from the Sahara. Warnings were also issued for 40 of Spain’s 50 provinces. The southeastern Portuguese town of Beja is expected to see a peak of 47 degrees Celsius (117 degrees Fahrenheit) on Saturday.
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Heat wave safety tips – An toàn trong bão nhiệt

~ Đào Thu Hằng ~ 1 bình luận

National weather services

Stay Informed: Monitor local radio and television (including NOAA Weather Radio), internet and social media for information and updates.

How to response to excessive heat events
  •  Slow down: reduce, eliminate or reschedule strenuous activities until the coolest time of the day. Children, seniors and anyone with health problems should stay in the coolest available place, not necessarily indoors.
    • Dress for summer. Wear lightweight, loose fitting, light-colored clothing to reflect heat and sunlight.
    • Eat light, cool, easy-to-digest foods such as fruit or salads. If you pack food, put it in a cooler or carry an ice pack. Don’t leave it sitting in the sun. Meats and dairy products can spoil quickly in hot weather.
    • Drink plenty of water (not very cold), non-alcoholic and decaffeinated fluids, even if you don’t feel thirsty. If you on a fluid restrictive diet or have a problem with fluid retention, consult a physician before increasing consumption of fluids.
    • Use air conditioners or spend time in air-conditioned locations such as malls and libraries.
    • Use portable electric fans to exhaust hot air from rooms or draw in cooler air.
    • Do not direct the flow of portable electric fans toward yourself when room temperature is hotter than 90°F. The dry blowing air will dehydrate you faster, endangering your health.
    • Minimize direct exposure to the sun. Sunburn reduces your body’s ability to dissipate heat.

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