Why did the Beijing-Tianjin-Hebei region repeatedly break the high temperature record this year?
On June 22nd, 23rd and 24th, the temperatures in the observatory in the southern suburbs of Beijing reached 465℃, 438+0.65℃, 438+0℃, 40.3℃ and 40.0℃ respectively, which was the first time in the history of meteorological observation in Beijing that extreme temperatures above 40℃ appeared for three consecutive days.
1. The reason why Beijing-Tianjin-Hebei is so hot is very complicated, and the main reason is global warming.
Extreme high temperature is not an isolated event, everything can be traced, and the root cause is the general trend of global warming.
According to the annual climate report released by the World Meteorological Organization (WMO) in 2023, the global temperature will be 1. 15℃ higher than that before industrialization in 2022, which is 1850- 1900. Global warming is an indisputable fact, but this trend is not based on "/"
This summer is not only hot in northern China, "the whole world is cool and hot here". In June this year, the temperature in Mexico, Pakistan, Iran and other countries exceeded 45℃, and on June 2 1 day, the highest temperature in Zabolai, Iran reached 50.8℃.
Extreme high temperature weather appears repeatedly in various places. In a sense, it may be just a prelude to various manifestations of global warming.
Second, El Nino "added fuel to the fire"
Meteorologists speculate that the current global high temperature weather is the result of the joint action of El Niñ o phenomenon and global warming, and the power of El Niñ o has not yet reached a high point. 2023 may be the hottest year on record.
El Nino refers to a periodic climate phenomenon in which the surface seawater in the East and Central Pacific Ocean near the equator rises abnormally every few years. WMO pointed out that this phenomenon occurs every 2 to 7 years on average, and usually lasts for 9 to 12 months. This is a naturally occurring climate pattern, but it happened in the climate background changed by human activities.
"The appearance of El Niñ o will greatly increase the possibility of breaking the temperature record, and may also lead to extreme high temperatures in many parts of the world and oceans," said Petrie Taras, Secretary General of the World Meteorological Organization, in a press release.
This time, the high temperature in Beijing, Tianjin and Hebei and the El Niñ o phenomenon should be regarded as "adding fuel to the fire" for the high temperature in Beijing and other places, but the root cause of extreme weather is global warming.
Under the background of global warming, the frequency of extreme high temperature will increase in both the south and the north.
Facing the extremely hot weather, we should take some measures to prevent heatstroke and dehydration.
The first is to avoid going out in high temperature, especially at noon. If you have to go out, wear loose and breathable clothes, hats and sunglasses to reduce the damage of ultraviolet rays.
At high temperature, our sweat evaporates faster, which easily leads to dehydration, so we should replenish water in time.
In hot weather, we should wear loose and breathable clothes to let our bodies emit excess heat.
It is the responsibility of the whole world to pay attention to climate change and reduce greenhouse gas emissions in order to mitigate the impact of climate change.
Global warming is closely related to human activities. Each of us can start from the small things around us, reduce energy consumption, encourage the use of renewable energy and promote circular economy.
Strengthen the monitoring and response to extreme high temperature weather through early warning system and disaster management planning. Facing the challenge that extreme high temperature weather has become the new normal, we should work together to take measures to slow down climate warming and adapt to new environmental conditions. Only by combining global cooperation with individual efforts can we deal with this problem better.