Why is the Earth's weather so hot now? How will people live this year?

Why is it so hot this year? According to the Central Meteorological Observatory’s forecast, most areas in Jiangnan will experience persistent sunny, hot and high-temperature weather in the near future. Why is it so hot this year? Global greenhouse gas emissions cause global warming. Zhou Lingxi, a researcher at the Atmospheric Composition Observation and Service Center of the China Meteorological Administration, said that global warming caused by global greenhouse gas emissions has become an indisputable fact. According to the 2001 annual report of the United Nations' Intergovernmental Panel on Climate Change (IPCC), the world's average temperature has climbed approximately 0.6°C in the last century. By the end of this century, global temperatures will rise by 1.6°C to 5.5°C, while sea levels will rise. 9 to 85 cm. "However, since the effects of emissions from various regions are not the same, and the cooling effects caused by volcanic eruptions or aerosols are also uncertain, the degree of warming in various regions is not the same, but overall it is warming." At present. It is also in a temperature peak period in the history of the earth. The Earth undergoes a cycle of alternating cold and warm temperatures every 100,000 years. The alternating activities are mainly controlled by sunlight, and the amount of sunlight on the Earth is determined by its orbit and the orientation of celestial bodies. "From the perspective of geological time, we are currently in a temperature peak period in the history of the earth, so some effects are superimposed on the basis of global warming." What harm does high temperature do to people? What harm does high temperature do to people? Depending on the body constitution and body sensitivity, the impact of high temperature on everyone is also different. Li Weijing, director of the National Climate Center, said that when it comes to high temperatures, attention should be paid to heatstroke prevention and cooling, especially for the elderly, weak, sick and disabled, such as the spread of cardiovascular disease, hypertension, and intestinal infectious diseases. Gu Yue's sudden death may be related to high temperature. The famous special actor Gu Yue, who has successfully portrayed the great leader Chairman Mao 84 times, suffered a sudden myocardial infarction while participating in a film and television event in Lingui County, Guangdong Province on July 2. Rescue efforts failed and died in Sanshui, Foshan City at 11:09 that night. He passed away at the District People's Hospital at the age of 68. According to Lu Qi, another special actor who participated in the event with him, Gu Yue had no symptoms of heart disease before his death. This sudden outbreak may be related to the hot weather and physical fatigue. Changes in temperature can affect mortality. According to statistics, every 1°C increase in the maximum temperature will increase the number of deaths in Guangzhou by 7%, and for Shanghainese who are not as heat-tolerant as Guangzhou people, the number of deaths will increase by 16%. Usually when the temperature does not exceed 33℃, temperature changes will not cause significant changes in the mortality rate in southeastern China. However, when the temperature reaches above 34℃, the number of deaths in Guangzhou on that day increases by 11%; the number of deaths among Shanghai residents even increases by 28%. . Modern people are far away from nature and find it difficult to adapt to sudden changes in weather. Professor Wolfgang Spahn, a German medical meteorologist, believes that the influence of weather is temperature, humidity and air pressure, which have a comprehensive impact on human tissues through human skin, respiratory organs, sensory organs and nervous system. Human tissue and the autonomic nervous system enable the human body to have a certain ability to adapt to weather changes. However, because modern people live far away from nature and are no longer accustomed to the natural environment, it is difficult for many people to adapt to sudden changes in weather. The longer you stay in an air-conditioned room, the worse your ability to adapt to temperature changes. Lu Chen, a senior engineer at the Beijing Meteorological Society, said: "Now that people's living standards have improved, they stay in air-conditioned and constant-temperature rooms for a long time, and their ability to adapt to temperature changes is relatively poor, which can easily cause symptoms in children and the elderly. Respiratory diseases. Due to the destruction of the ozone layer, the ultraviolet radiation reaching the ground will increase, which will have an impact on human skin, eyes and immune system functions. "Humans are warm-blooded animals, and the regulation of temperature will increase the burden on the cardiovascular and cerebrovascular systems. Blood pressure and pulse are affected, which is even more dangerous for people with chronic diseases. "The stressful pace of life changes the body's thermal comfort standards. In addition, daily factors such as increased caloric intake caused by dietary structure, abnormal metabolism due to intense life rhythm, weakened heat dissipation through metabolites, reduced leisure time during the day, and increased indoor air-conditioning space all affect the human body's thermal comfort. Standards have changed. "Due to the trend of global warming, the atmospheric circulation situation has changed, and the frequency of extreme weather on the earth has also greatly increased - heavy rains, hurricanes, hail, high temperatures, and droughts will become more and more frequent. In the past, when temperatures above 40°C occurred in Beijing, ten It only happens once every few years, but now it happens almost every year, and more than once. Now the hot weather lasts longer. In the past, it was fine for one or two days, but now it is unbearable if it lasts for more than 10 days.

”

Accept it