Wet ball temperature in the Middle East has broken through the limit of human survival many times, and it may not be able to live at the end of this century.

Polar news reporter Man Da Huang Jiaqi

The heat waves swept the northern hemisphere this summer, and the temperature of many countries reached a record high. However, under the same high temperature weather, the Middle East becomes more inaccurate because of high humidity. According to a report by the United States Cable Television News on August 19, studies have shown that at the end of this century, the Middle East may not be suitable for human beings.

On June 29, people passed through the Dagris River tributary Dia

The Middle East is still quite hot this year. Iranian city Abadan City set the hottest high temperature record this year on August 5, reaching 53 degrees Celsius. Combined with the high humidity of the area, it has become a place that is less friendly to humans.

Experts said that the temperature alone is not enough to fully measure the degree of per restaurant, but to consider the combination of humidity.

The standard for measuring temperature and humidity is called wet ball temperature. "Wet ball temperature is the minimum temperature that can be reached by evaporation and cooling," said Talpio Schneid, a professor of environmental science and engineering at the California Institute of Technology.

When the weather is humid, people are more difficult to cool down, because our body needs to work hard to transfer heat to wet air instead of dry air, which makes it more difficult for us to sweat and reduce body temperature.

"The Middle East is particularly easy to be affected by global warming." Schneid said, "The region is already full of humidity, and continuing global warming may cause the climate in the region to endanger human health."

The Middle East is one of the few recorded wet balls in the world that exceeds human survival limit (35 degrees Celsius). Since 2005, there have been 9 such records in the area.

The temperature of the 35 degrees Celsius means that the human body can no longer cool itself to the temperature that can maintain normal function.

Schneider said: "This is a hard threshold for survivability, which has nothing to do with age and physical fitness. Human beings cannot survive under such conditions; if there are no special measures, people will die within a few hours."

The living environment with a slightly lower damp ball temperature is slightly lower than 35 degrees Celsius. He said: "Humans will also experience thermal stress at the temperature of wet balls slightly less than 35 degrees Celsius. And they can survive in this heat stress depends on health, physical fitness, and age."

Studies at Purdue University found that when the temperature of the wet ball was about 32 degrees Celsius, even healthy people could not work outdoors. The temperature of the limited wet ball of physical labor was 31 degrees Celsius.

Arab countries with abundant oil resources in the Persian Gulf areas have been equipped with high energy -consuming air conditioners to resist high temperature and high humidity weather, but there are no such good conditions in other countries in the region.

In Iraq, because of the high temperature earlier this month, employees in Basla were required to stay indoors. However, each family can only get up to 10 hours of electricity from the State Grid, and those residents who affordable to pay extra time to private power generation suppliers should be paid.

In Gasha, residents are only provided for 3 to 4 hours of electricity, and suffer from electricitylessness per day. Similarly, the Lebanon government no longer offers more than two hours of electricity every day.

A simulation study at MIT found that if the current sedimentary speed of greenhouses in the Middle East remains unchanged, by the end of this century, the annual wet ball temperature in cities such as Abu Dhabi, Dubai, and Doha will exceed the threshold of human survival several times ( 35 degrees Celsius), which means that these areas will not live again.

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