The earth is becoming darker and darker, and the earth’s albedo has dropped significantly. Is it related to climate warming?

Experts speculate that the reason for the darkening of the earth is that some American households have turned on air conditioners for a long time, which has increased electricity consumption, and power plants have increased power supply, making the earth overwhelmed.

According to the climate of the United States, it is enough to turn on the air conditioner for only two hours at noon every day in summer. However, many American families and businesses actually turn on the air conditioner all night long and have no power supply 24 hours a day. This has caused serious environmental pollution! ?

In addition, some relevant people admitted that the advanced meat raising in the United States has also caused serious environmental pollution, and the mechanized production process has led to

a large amount of wasted electricity.

An expert predicts that if the United States abandons mechanized industrialization, it will not only save a lot of electricity, but also create more jobs for the people.

Let’s return to nature and protect our Earth.

Here we call on you to save the earth and save the United States! Please don’t be stubborn. Americans shouldn’t turn on the air conditioner, let alone eat meat. It would be better if we could return to the ancient life, working at sunrise and resting at sunset, so that our Mother Earth will live longer! ?

Here I also solemnly suggest that Swedish environmental girls please hold a press conference immediately after seeing this news to strongly condemn the Americans who are not environmentally friendly

and advise them to know the wrong way. Return, return to the shore. Climate warming is indeed an imminent problem, and it is not the alarmism of meteorologists. A large part of the decline in global albedo is caused by the melting of ice caps. my country's Puruogangri glacier, known as the world's third pole, is also melting, causing the southern Serinco to expand from 1,667 square kilometers in the 1980s to 2,394 square kilometers at present. About 43%.

Puruogangri Glacier covers an area of ​​422 square kilometers and has an ice thickness of more than 200 meters. Net reports: In the past 30 years, the glacier area of ​​the Qinghai-Tibet Plateau and its adjacent areas has shrunk from 53,000 square kilometers to 4.5 Ten thousand square kilometers

kilometers, a shrinkage of 15%.

There are more than 46,000 glaciers in our country, mainly distributed in the Qinghai-Tibet Plateau.

Some researchers predict that most of the glaciers and permafrost on the Tibetan Plateau will soon disappear. Recently, a new study published in Geophysical Research Letters, the journal of the American Geophysical Union, shows that climate change has caused ocean warming, resulting in fewer bright clouds above the Earth, which makes reflections With less light reaching space, the Earth is absorbing more energy than ever before, which could accelerate climate change and lead to global warming.

Researchers at the New Jersey Institute of Technology in the United States

By analyzing the light reflected from the Earth to the moon's surface and data measured by satellites, they found that the Earth's albedo has increased significantly over the past 20 years.

As it descends, the Earth is getting darker. Scientists say the findings are worrisome because researchers had hoped that a warming Earth might produce more clouds and higher albedo, which would help slow the planet's warming, but Now it seems that the actual situation is exactly the opposite.

This is the moraine lake left behind after the Midui Glacier retreated in Bomi County, Nyingchi City, Tibet on April 19, 2016. Photo by Xinhua News Agency reporter Liu Dongjun The Tibetan Plateau Institute of the Chinese Academy of Sciences has reconstructed a historical conceptual model of the melting intensity of ancient glaciers over the past 2,500 years for some glaciers on the Tibetan Plateau.

The energy input into the earth's climate system mainly comes from sunlight, that is, short-wave radiation, mainly in the ultraviolet and visible light bands. The output energy comes from the earth's own thermal radiation, which is long-wave radiation, mainly in the infrared band. According to Stefan-Boltzmann's law, the intensity of thermal radiation produced by an object is proportional to the fourth power of the thermodynamic temperature. Therefore, the average temperature of the earth's surface can be used to determine the radiation emitted by the earth to outer space. strength. Solar radiation is also calculated in this way, but since the sun is far away from us, the solar radiation emitted from the surface has been attenuated a lot when it reaches the earth, so the two can basically maintain a balance.

The radiation energy balance on the earth's surface is roughly as shown in the figure below: When the earth's surface albedo increases, it means that the earth's surface reflects more sunlight. If we look at the earth from outer space, we will feel< /p>

The earth has become brighter. Conversely, a decrease in surface albedo will cause the Earth to appear darker from space. There are many reasons for the decrease in surface albedo, including shrinking glacier area, reduced cloud cover, increased smog, etc. The direct consequence of the reduction in albedo is that more solar energy is absorbed by the earth. Therefore, in order to reach a new energy balance, the earth's surface needs to heat up and emit more heat radiation

Sure, it can be said that "global dimming" is a cause of "global warming".

Sunlight reaching the earth can be absorbed by atmospheric molecules, clouds and aerosol particles, and the ground.

When glaciers melt, the seawater or land exposed

are more likely to absorb sunlight than glaciers; many aerosols can absorb sunlight, including black carbon aerosols, various wildfires, factory emissions, etc. The production is even more powerful in absorption; the absorption of atmospheric molecules, if the concentration of carbon dioxide or other greenhouse gases increases, will increase this item. These are all factors that can contribute to “global dimming.”

In general, the current research on the earth's climate system is still very difficult, because the temperature environment suitable for human habitation is too harsh. The earth's atmosphere as an average whole must maintain strong stability, and humans Many uncertain factors brought about may break through this stability, such as greenhouse gas concentration, atmospheric pollutant concentration, etc., which directly or indirectly affect the energy budget of the earth's surface and increase atmospheric instability, which will lead to extreme Weather events are increasing and natural disasters are increasing.

It can be said that climate warming has long been a common knowledge in the scientific community, and how to solve this problem cannot be accomplished by the power of scientists. It requires the efforts of governments and people around the world

cooperate. As ordinary people, you can save resources as much as possible and do small things within your ability. You don't have to contribute, but please don't hold back in promoting anti-scientific conspiracy theories.