Traditional Culture Encyclopedia - Weather forecast - Is global warming caused by over-exploitation of oil?
Is global warming caused by over-exploitation of oil?
The weather in Chongqing is getting warmer and warmer now. Is this a sign of global warming? It has a certain impact, but I don't think it is all caused by global warming, but it may also be caused by the increase of various carbon emissions with the development of cities.
How is global warming caused? Some gases emitted by human beings, such as carbon dioxide, methane and chlorofluorocarbons, have the function of absorbing infrared radiation. These gases are called "greenhouse gases". They are rich in the atmosphere, just like a cover, which blocks the heat emitted from the ground. Like a "greenhouse", it causes the surface temperature to rise. Scientists call this phenomenon "the greenhouse effect". There is a saying that the greenhouse effect is the main cause of global warming. This is put forward by scientists after investigating the correlation between the increase of carbon dioxide emissions and the rise of temperature in the past 100 years. It is believed that controlling greenhouse gas emissions may control global warming and prevent disasters such as ecological balance destruction, agricultural variation and glacier melting.
For example, in summer, all air conditioners are on, but it's getting colder and hotter outside. And those old refrigerators with fluoride. With the increasing population, more and more carbon dioxide is distributed, and so on. ...
Is global warming pseudoscience? Global warming is a phenomenon related to nature. It is due to the accumulation of greenhouse effect that the energy absorbed and discharged by the geogas system is unbalanced, and the energy of the geogas system is accumulated continuously, which leads to the increase of temperature and global warming.
Because people burn fossil fuels, such as oil and coal. Or cutting down and burning down forests will produce a lot of carbon dioxide, that is, greenhouse gases, which have a strong permeability to visible light emitted by the sun, a strong absorption to long-wave radiation emitted by the earth, and a strong absorption of infrared radiation from the ground, leading to an increase in the temperature of the earth, that is, the greenhouse effect. Global warming will redistribute global precipitation, melt glaciers and frozen soil and raise sea level, which will not only endanger the balance of natural ecosystems, but also threaten human survival.
On the other hand, due to the greenhouse gas emissions from the land, the temperature in the mainland rises and the temperature difference with the ocean becomes smaller. Recently, the airflow has slowed down, and the smog can't be blown away in a short time, which has led to an increase in smog weather in many cities, affecting human health. Measures such as car restrictions and production suspension have only short-term and regional impacts, and cannot fundamentally change climate warming and smog pollution.
Whether global warming is a good thing or not has both advantages and disadvantages. The advantage is that it is not so cold. The disadvantage is that glacier fusion, greenhouse effect and various effects have come.
Is global warming a false proposition Global warming is by no means a false proposition, but a very serious scientific proposition.
In modern society, when we burn fossil fuels, such as oil and coal, or cut down forests and burn them, we will produce a lot of carbon dioxide, that is, greenhouse gases. These greenhouse gases have strong permeability to the visible light emitted by the sun, strong absorption to the long-wave radiation emitted by the earth, and can strongly absorb the infrared radiation from the ground, leading to an increase in the temperature of the earth, which is the greenhouse effect. However, when the greenhouse effect is accumulating, the energy absorbed and discharged by the geo-atmospheric system is unbalanced, and the energy is accumulating in the geo-atmospheric system, leading to rising temperature and global warming.
Global warming will redistribute global precipitation, melt glaciers and frozen soil and raise sea level, which will not only endanger the balance of natural ecosystems, but also threaten human survival.
On the other hand, due to the greenhouse gas emissions from the land, the temperature in the mainland rises and the temperature difference with the ocean becomes smaller. Recently, the airflow has slowed down, and the smog can't be blown away in a short time, which has led to an increase in smog weather in many cities, affecting human health.
Whether global warming is a scam or not is the mainstream theory, but some scientists still have great doubts about this proposition (climate warming). The ancient sediment samples from submarine drilling show that the global climate change pattern does not support the argument of global warming.
The climate change pattern of tens of thousands of years accords with China's Taoist philosophy: extremes meet, and warm periods alternate with ice periods.
In recent years (20/200712), the global temperature has shown a downward trend. Whether it means that another ice age is coming is worth our thinking. Learning can't follow the crowd, we should seek truth from facts and dare to be skeptical about mainstream opinions.
What gas is the main cause of global warming? This is a "natural phenomenon". Because people burn fossil minerals to generate energy or cut down forests to burn, many greenhouse gases, such as carbon dioxide, are produced. This gas has high permeability to visible light from the sun, high absorption to long-wave radiation reflected by the earth, and can strongly absorb infrared radiation from the ground, which is commonly called "greenhouse effect" and leads to global warming. The consequences of global warming will redistribute global precipitation, melt glaciers and frozen soil and raise sea level, which will not only endanger the balance of natural ecosystems, but also threaten human food supply and living environment.
What are the main causes and effects of global warming caused by the following factors?
First of all, the causes of global warming
According to the principle of physics, we know that any object in nature radiates energy outward, which is called thermal radiation. Generally, the thermal radiation wavelength of an object has a certain range, which is determined by the absolute temperature of the object. The higher the temperature, the greater the thermal radiation intensity and the greater the proportion of short wave; The lower the temperature, the lower the thermal radiation intensity and the greater the proportion of long wave. The surface temperature of the sun is about 6000K, and the strongest band of thermal radiation is visible light. The more the temperature of the earth's surface is 288K, the strongest band of surface thermal radiation is located in the infrared region. After solar radiation reaches the earth's surface through the atmosphere, it is absorbed by rocks and soil, and the temperature of the earth's surface rises. At the same time, the earth's surface materials emit infrared radiation into the atmosphere. The atmosphere has a strong absorption effect on infrared radiation, which leads to relatively more heat on the earth's surface from solar radiation and relatively less heat lost to the outside of the atmosphere, thus maintaining the temperature of the earth's surface, which is the greenhouse effect of the atmosphere. Eventually, the solar radiation energy received by the earth and the infrared radiation energy it lost reached a balance, forming the existing average temperature on the earth's surface.
As mentioned above, the earth's atmosphere is a mixture of many gases, of which nitrogen and oxygen account for 99% of the total, but the greenhouse effect is mainly caused by some trace gases, which absorb the main parts of solar radiation-short wave and visible light-weakly, but strongly absorb the long wave radiation emitted from the ground. Therefore, when their concentration in the atmosphere increases, the greenhouse effect of the atmosphere will be intensified, leading to an increase in the temperature of the earth's surface and the lower atmosphere. These gases are called "greenhouse gases". "Greenhouse gases" mainly include carbon dioxide, ozone, methane, chlorofluorocarbons and carbon monoxide. Climate warming in the past century is considered to be the result of the sharp increase in the concentration of greenhouse gases such as carbon dioxide in the atmosphere.
The main reason for the increase of greenhouse gases is human activities. Take carbon dioxide as an example. At the beginning of19th century before the industrialization of human society, the concentration of carbon dioxide in the atmosphere was 270ppm, but it had risen to 350ppm in 1988. There are two main reasons for the increase of carbon dioxide concentration in the atmosphere: first, due to the rapid increase of population and the development of industrialization, the consumption of fossil fuels in human society has increased sharply, and a large amount of carbon dioxide has entered the atmosphere due to combustion, which has increased the concentration of carbon dioxide in the atmosphere; Secondly, forest destruction reduces the amount of carbon dioxide absorbed and utilized by plants, reduces the speed of carbon dioxide consumption, and increases the concentration of carbon dioxide in the atmosphere. Greenhouse gases other than carbon dioxide, such as methane, chlorofluorocarbons and nitrogen oxides, have also increased to varying degrees.
Second, the possible impact of global warming.
The preliminary study shows that global warming will lead to the northward shift of the temperature zone, which will lead to the corresponding changes in atmospheric movement and global precipitation. Generally speaking, the precipitation in the existing rain belt in low latitudes will increase, the snowfall in winter in high latitudes will increase, and the precipitation in summer in middle latitudes will decrease. For most arid and semi-arid areas, it is beneficial to increase precipitation. However, areas with reduced rainfall, such as central North America and the inland areas of northwest China, will become more arid and water sources will be more tense due to the reduction of summer rainfall.
On the premise of comprehensively considering the factors such as the thermal expansion of seawater, the increase of Antarctic ice sheet caused by the increase of polar precipitation, and the melting of ice and snow in the Arctic and mountainous areas, it is predicted that the sea level will rise by 20~ 165 cm when the global temperature rises 1.5 ~ 4.5℃. Sea level rise will undoubtedly change the coastline and bring great influence to coastal areas. At present, the coastal areas with low altitude will face the danger of being submerged. Sea level rise will also lead to seawater intrusion, poor flood discharge and land salinization.
Although there are many uncertainties, it is obvious that the impacts of global warming on climate zones, precipitation and sea level, and the resulting impacts on human settlements and ecosystems are extremely complex, and we must pay due attention to them. It is irresponsible to think that this influence is irrelevant in the long run.
Is global warming a man-made factor? Excessive emissions from human industry are the main cause of global warming. In addition, in hundreds of millions of years, the earth's climate has also fluctuated periodically.
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