The extreme climate in 2022 is terrible, and Europe has experienced a drought that occurs once in 500 years. Pakistan was hit by a major flood, which affected about one-third of Pakistan's territory. And now we are experiencing the active period of the solar period, and the sun will enter the climax of the active period after 2023. So is the extreme climate we encounter related to solar activity? If it is relevant, it means that the climate will become more terrifying and extreme after 2023?
The global warming we are experiencing global warming and climate change
global warming is the long-term warming of the Earth's surface since the pre-industrial period (1850-1900), due to human activities (mainly fossil fuel combustion), which increases the heat absorption level of greenhouse gas in the Earth's atmosphere. The Earth's surface absorbs less than half of the solar energy, while the atmosphere absorbs 23%, and the rest is reflected back to space. Natural processes ensure that incoming and outgoing energy is equal, thus keeping the earth's temperature stable. However, human activities have led to an increase in so-called greenhouse gas emissions. Greenhouse gases allow sunlight to pass through the atmosphere, but they prevent the heat from leaving the atmosphere. Thus produces greenhouse effect , leading to global warming and climate change.
Climate change is a long-term change in the average weather pattern that defines the earth's local, regional and global climate. The changes observed in the Earth's climate since the mid-20th century are driven by human activities, especially the combustion of fossil fuels, which increases the level of greenhouse gas heat absorption in the Earth's atmosphere, thereby increasing the Earth's average surface temperature. Global warming can lead to many catastrophic consequences, such as rising global land and ocean temperatures; rising sea level ; ice loss at the Earth's poles and mountain glaciers; changes in the frequency and severity of extreme weather such as hurricanes, heat waves, wildfires, droughts, floods and precipitation.
Is climate change related to solar activity
Our sun is a huge ball of electric hot gas, which moves and produces a powerful magnetic field. The solar magnetic field goes through a cycle, called the solar cycle. The solar cycle affects the activity of the sun's surface, such as sunspots caused by the solar magnetic field. As the magnetic field changes, the amount of activity on the sun's surface will also change. We are currently experiencing the 25th solar cycle, and the current cycle (the 25th solar cycle) begins in 2019. During this period, solar activity will continue to increase until the maximum solar activity will appear from 2023 to 2026.
Although solar flare and related coronal material ejection can bombard the outermost atmosphere with huge energy, most of the energy is reflected back to space by Earth's magnetic field . Because energy does not reach the surface of our planet, it has no measurable effect on surface temperature. The extreme high temperatures that hit many parts of the world in 2022 coincide with the mid-active period of the sun, so it is not completely unreasonable to suspect whether the high temperature is related to solar activity. After all, everyone knows that the energy of the sun is the source of warmth on the earth. Some scientists once believed that solar activity affects the temperature of the earth. For example, in the 18th century, British astronomer Frederick William Herschel studied the correlation between solar cycles and climate.
Regarding the link between solar activity cycle and climate correlation. From about 1645 to 1715, the sun experienced a period of almost zero sunspot activity. This sunspot ministry is called the Mond ministry. The "Little Ice Age" also happened to occur in parts of the earth during the Mond Minimum Period. So how much impact does solar activity have on Earth’s climate? When the solar activity is frequent, ultraviolet radiation will increase sharply, which will have a great impact on the earth's atmosphere. During minimal solar activity, vice versa. But not only the sun, other geological activities on the earth can also affect the climate. For example, studies have shown that the Mond Minimum period not only occurs during a period of obvious lack of sunspot activity, but also coincides with the decades of large volcanic eruptions.As we all know, large volcanic eruptions will produce volcanic winters, which will reduce the energy of the sun radiating to the ground.
Also, most of the energy released by solar storm is different from the visible light and ultraviolet rays that penetrate the earth's atmosphere and warm the surface. Instead, solar storms eject charged particles in space, which mainly encounter the magnetic field and upper atmosphere of our planet (i.e., thermal layer), and the flow of high-energy particles warms thermal layer . If solar activity is the main cause of global warming now, we will see all atmospheres from the surface to the upper atmosphere warming. However, the reality is that the temperature of the upper atmosphere has basically not changed much, while the temperature on the surface is constantly warming.
So the sun does affect some climate, but the impact is limited. The warming we have seen in recent decades is too fast and not caused by short-term solar activity. In short, solar flares are not the reason for the current global warming. The culprit of current global warming is caused by the large amount of greenhouse gases emitted by humans. In this case, you don’t have to worry about making the climate more terrifying and extreme as the sun becomes more active in the future. However, if people continue to emit greenhouse gases so extensively, the future climate will not be optimistic. The above is what we have today. I am Huo Zongjun, see you next time.
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