<div id="firstBodyDiv" data-bind-html-content-type="article" data-bind-html-compile="article.body" data-first-article-body="
How are humans affected by rising temperatures?
- During the summer of 2022, more than two thousand people died due to extreme temperatures AndForest fireserupted in Portugal and Spain, while records of high temperatures were shattered in England and Japan
- As climate change continues and temperatures rise, scientists are working quickly to understand the limits of human resilience in the face of extreme temperatures.
- University study Portland, USAindicated that "People’s heat stress tolerance may be lower than previously thought, and millions of people may be at risk of succumbing to higher temperatures very soon.".
- "Bodies are able to biologically adapt for a period of time to changing temperatures, but today we are witnessing climate shifts more rapidly"According to Vivek Chandas, a researcher in environmental planning and climate adaptation at Portland State University in Oregon, Vivek Chandas.
Countries that have suffered from heat waves
- Only halfway through 2022, heat waves swept through many countries, reaching as early as last March in South Asia.
- In India, the temperature rose to 45 degrees Celsius, while in Pakistan, the recorded temperatures rose to 49.5 degrees..
- Alerts for extreme temperatures ran across Europe from June to July, exacerbating droughts and igniting wildfires.
- According to the study, June brought Japan the worst heat wave since records began in 1875, reaching 40.2 degrees Celsius.
- Major Chinese coastal cities, from Shanghai to Chengdu, have been hit by temperatures above 40 degrees Celsius.
- In the United States, heat waves swept the Midwest, South, and West in June and July.
Scientists’ expectations
Scientists have long predicted that Climate change anthropogenic heat waves will increase heat waves, and they find that globally, human exposure to extreme heat tripled from 1983 to 2016, particularly in South Asia.
The effect of heat on health
- The already high temperature is increasingly affecting human healthHe can experience heat cramps, heat exhaustion, and heat stroke, which can be fatal.
- Dehydration can lead to kidney and heart disease, as well as cause increased aggressiveness and reduced ability to focus.
- Penn State climate scientist and study co-author, Daniel Vecellio, said: "No human body is 100 percent efficient. Body sizes, ability to perspire, age, and adaptation to regional climates vary. However, over the past decade, 35°C has been considered the point beyond which humans can no longer regulate their body temperatures.".
- But recent laboratory research, conducted by Vecellio and colleagues, indicated that "The limit for human heat stress is much lower, even for young, healthy adults".
- Researchers followed heat stress in more than 20 people, aged 18 to 34, under a variety of monitored climates.
- In a series of experiments, the team changed the humidity and temperature conditions inside an environmental room, maintained a constant temperature while changing the humidity, and vice versa, measured people’s skin and internal body temperatures..
- The team estimated that in warm and humid conditions, the subjects were unable to tolerate heat stress at temperatures near 30 or 31 degrees Celsius, and in hot, dry conditions, the temperature needed for heat stress was even lower, ranging from 25 to 28 degrees percentile, researchers report in the Journal of Applied Physiology.
- The results indicated that "If the human body’s tolerance to heat stress is generally lower than scientists realize, it could mean that millions more people will be exposed to the most deadly heat, sooner than scientists expect..
- University of Miami climatologist Larry Calcasten, stressed the need for "Addressing heat waves to confront natural disasters, and improving the resilience of societies in the future".
“>
How are humans affected by rising temperatures?
- During the summer of 2022, more than two thousand people died due to extreme temperatures AndForest fireserupted in Portugal and Spain, while records of high temperatures were shattered in England and Japan
- As climate change continues and temperatures rise, scientists are working quickly to understand the limits of human resilience in the face of extreme temperatures.
- University study Portland, USAShe noted, “People’s heat stress tolerance may be lower than previously thought, and millions of people may be at risk of succumbing to high temperatures very soon.”
- “Bodies are able to biologically adapt for a period of time to changing temperatures, but today we are seeing climate shifts more rapidly,” said Vivek Chandas, a researcher in environmental planning and climate adaptation at Portland State University in Oregon, Vivek Chandas.
Countries that have suffered from heat waves
- Only halfway through 2022, heat waves swept through many countries, reaching as early as last March in South Asia.
- In India, the temperature rose to 45 degrees Celsius, while in Pakistan, the recorded temperatures rose to 49.5 degrees..
- Alerts for extreme temperatures ran across Europe from June to July, exacerbating droughts and igniting wildfires.
- According to the study, June brought Japan the worst heat wave since records began in 1875, reaching 40.2 degrees Celsius.
- Major Chinese coastal cities, from Shanghai to Chengdu, have been hit by temperatures above 40 degrees Celsius.
- In the United States, heat waves swept the Midwest, South, and West in June and July.
Scientists’ expectations
Scientists have long predicted that Climate change anthropogenic heat waves will increase heat waves, and they find that globally, human exposure to extreme heat tripled from 1983 to 2016, particularly in South Asia.
The effect of heat on health
- The already high temperature is increasingly affecting human healthHe can experience heat cramps, heat exhaustion, and heat stroke, which can be fatal.
- Dehydration can lead to kidney and heart disease, as well as cause increased aggressiveness and reduced ability to focus.
- Penn State climate scientist and study co-author Daniel Vecellio said: “No human body is 100 percent efficient. Body sizes, ability to perspire, age, and adaptation to regional climates vary. Celsius is the point after which humans can no longer regulate their body temperature.”
- But recent laboratory research, conducted by Vecellio and colleagues, indicated that “the threshold for human heat stress is much lower, even for young, healthy adults.”
- Researchers followed heat stress in more than 20 people, aged 18 to 34, under a variety of monitored climates.
- In a series of experiments, the team changed the humidity and temperature conditions inside an environmental room, maintained a constant temperature while changing the humidity, and vice versa, measured people’s skin and internal body temperatures.
- The team estimated that in warm and humid conditions, the subjects were unable to tolerate heat stress at temperatures near 30 or 31 degrees Celsius, and in hot, dry conditions, the temperature needed for heat stress was even lower, ranging from 25 to 28 degrees percentile, researchers report in the Journal of Applied Physiology.
- The results indicated that “if the human body’s tolerance to heat stress is generally lower than scientists realize, it could mean that millions more people will be exposed to the most deadly heat, sooner than scientists expect.”.
- Climate scientist at the University of Miami Larry Calcasten stressed the need to “address heat waves to confront natural disasters, and improve the resilience of societies in the face of them in the future.”.