The Impact of Global Warming on Climate

Global warming is related to the greenhouse effect caused by a large number of greenhouse gases emitted by human beings. However, researchers in Japan and Denmark recently pointed out that the increase of greenhouse gases is not the only cause of climate warming, but the change of solar activity has also played a role in promoting it.

According to the Nihon Keizai Shimbun, Professor Koji Ito from the Institute of Environmental Information of Yokohama National University in Japan made a chart. As can be seen from the figure, the curve between the average temperature of the earth and the intensity of the solar magnetic field in the past 200 years is basically the same. Ito koji concluded that solar activities also have an impact on climate warming, and it may not be comprehensive to explain climate warming only by increasing greenhouse gases.

The influence of solar activity on the earth's temperature has long been concerned by experts. Generally speaking, when there are many sunspots, the solar activity is intense. For example, according to historical records, sunspots rarely appeared in the17th century, when the earth's climate was relatively cold. However, the detection information obtained on the ground also shows that the change range of solar radiation energy caused by the change of solar activity intensity is only 0. 1%, and such a small change does not seem to have much impact on the climate.

Recently, however, there has been a hypothesis in the international space science community that the change of solar activity will change the cloud cover over the earth, "amplify" the influence of the sun on the earth, and then affect climate change. Danish scientists who put forward this hypothesis speculate that cosmic rays emitted to the earth can ionize part of the atmosphere more stably, making it easy for clouds to form, thus absorbing a lot of solar radiation and lowering the temperature of the earth. However, the high-speed charged particle flow released at the peak of solar activity can interfere with cosmic rays that are directed at the earth, making it difficult for clouds to form, which in turn leads to an increase in the temperature of the earth. At present, Danish researchers are studying various factors related to cloud formation to demonstrate the above hypothesis.

Some Japanese experts also suggested that although the change of solar radiation energy is only 0. 1%, they found that this energy change can change the absorption of solar ultraviolet rays in the earth's atmosphere by several percent, and the increase of this absorption will increase the temperature of the atmospheric ozone layer. Koji Bangyan, head of the second research department of Japan Meteorological Institute, said that the change of ozone layer temperature will affect the troposphere, thus affecting the cold current and monsoon, but it is not clear how much the above mechanism will affect global warming. In order to continue to study this subject, an international research group composed of Koji Bangyan and others began to work last year.

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The cause of global warming

There are many reasons for global warming, which can be summarized as follows:

1. Population explosion factor

The rapid population growth in recent years is one of the main factors leading to global warming. At the same time, it also seriously threatens the balance between the natural ecological environment. With such a huge population, the annual carbon dioxide emitted by itself will be an amazing number, and the result will directly lead to the continuous increase of carbon dioxide content in the atmosphere, thus directly affecting the climate change on the earth's surface.

2. Atmospheric environmental pollution factors

At present, the increasingly serious environmental pollution has become a major global problem, and it is also one of the main factors leading to global warming. Now, the research on global climate change has clearly pointed out that the temperature of the earth's surface has started to rise since the end of last century.

3. Deteriorating factors of marine ecological environment

At present, the change of sea level is on the rise. According to the prediction of relevant experts, the sea level may rise by 50 cm by the middle of the next century. If no measures are taken, it will directly lead to the destruction and pollution of fresh water resources and other adverse consequences. In addition, a large number of toxic chemical wastes and solid wastes produced by land activities are continuously discharged into the sea; Major oil spills in seawater and the destruction of coastal ecological environment by human activities are the main factors leading to the destruction of seawater ecological environment.

4. Land erosion, desertification and other destructive factors

The main cause of soil erosion and desertification is improper agricultural production. As we all know, good vegetation can prevent soil erosion. But so far, it is.

At present, human activities, such as excessive deforestation, land reclamation for agricultural production and overgrazing, are still seriously destroying vegetation. At present, on average, 20 hectares of forests are destroyed, 65,438+00 hectares of land are desertified and 47,000 tons of soil are eroded every minute in the world. Soil erosion reduces soil fertility and water retention, thus reducing soil biological productivity and its ability to maintain productivity; It may also lead to large-scale floods and sandstorms, causing huge economic losses to society and deteriorating the ecological environment.

5. Factors of sharp decline of forest resources

Worldwide, due to natural or man-made factors, the forest area is decreasing sharply.

6. Hazard factors of acid rain

The influence of acid rain on ecological environment has attracted more and more attention all over the world. Acid rain will destroy forests, acidify lakes and endanger living things. At present, most of the acid rain in the world is concentrated in Europe and North America, and most of them occur in developed countries and some developing countries. Acid rain is also occurring and developing rapidly.

7. Factors accelerating species extinction

Life on the earth is a precious resource for human beings, and the diversity of life is the basis for human survival and development. But at present, the biological species on the earth are disappearing at an unprecedented rate.

8. Water pollution factors

According to the water quality monitoring project of Global Environmental Monitoring System, about 65,438+00% of the monitored rivers in the world are polluted. Since the beginning of this century, the water consumption of human beings is increasing rapidly, and the scale of water pollution is also expanding, forming a contradiction between supply and demand of fresh water. Therefore, the treatment of water pollution will be very urgent and important.

9. Toxic waste pollution factors

More and more toxic chemicals not only pose a serious threat to human survival, but also do harm to the ecological environment on the earth's surface.

10 Changes of the Earth's Periodic Orbit

The earth's periodic orbit changes from ellipse to circle, which is closer to the sun. According to a scientist's research, the temperature of the earth has been alternating between high temperature and low temperature, with certain regularity.

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Global warming continues.

Luo Yong, deputy director of the National Climate Center of China Meteorological Bureau, said that according to the predictions of many scientists in the world, in the next 50- 100 years, human beings will completely enter a warming world. Due to the influence of human activities, the concentration of greenhouse gases and sulfide aerosols will increase rapidly in 2 1 century, which will lead to the rapid increase of global temperature, East Asia and China in the future 100, and the global average surface temperature will rise by 1.4℃-5.8℃. By 2050, the average temperature in China will rise by 2.2℃.

"The frequent occurrence of rare foggy weather since winter is also a sign of warm winter." Luo Yong said that the foggy weather was caused by "warm winter" and the strong cold air was very weak. The reality of global warming is constantly sounding the alarm to all countries in the world. Climate warming has seriously affected the survival of human beings and the sustainable development of society. It is not only a scientific problem, but also a comprehensive problem covering politics, economy and energy. The fact of global warming has risen to the height of national security.

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Temperature prediction of global warming

German researchers say that the future global temperature may be much higher than some scientists' previous predictions, if the prediction of climate change made by the new computer model is correct.

According to Reuters, the Intergovernmental Panel on Climate Change (IPCC), which is composed of meteorologists from various countries and studies global climate trends, predicts that by the end of this century, with the doubling of carbon dioxide, the global temperature will rise by 1.5 to 4.5℃. But Mainrath of Max Planck Institute for Chemistry in Mainz, Germany? However, the latest calculation method of Professor Andrea and his research team shows that the maximum global temperature rise can reach 6℃.

Professor Andrea said that this new method unifies suspended particles, greenhouse gases and biosphere effects, changing the previous prediction of climate change, even if it develops from a tolerable level to a more rapid and dangerous situation.

Professor Andrea compares greenhouse gases to an accelerator that causes global warming, and the existence of suspended particles can slow down the temperature rise. Suspended particles are tiny particles produced by combustion, chemicals and smoke in the air. With the use of new air purification and regulation devices, the number of suspended particles will decrease, so its cooling effect will also become smaller. On the contrary, the global temperature will rise accordingly.

Suspended particles can only stay in the atmosphere for one week, while greenhouse gases can stay for about 50 years. In other words, the cooling effect of suspended particulate matter decreases rapidly, while the greenhouse gas decreases slowly. In this way, in the long-term competition, greenhouse gases will eventually overcome suspended particles, followed by scorching hot weather.

However, Professor Andrea also admitted that this situation has a high degree of scientific uncertainty, and climate change is far beyond the scope of experience and scientific understanding. If his calculation is correct, the climate change in 2 1 century will exceed the prediction of the Intergovernmental Panel on Climate Change.

It is reported that after seven years, the global climate will be irreversibly warming.

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The consequences of global warming

1. The climate will become warmer, glaciers will melt and sea levels will rise, leading to the loss of coastal wetlands, mangroves and coral reefs and coastal erosion.

The terrible consequences of global warming

Seawater intrudes into the fresh groundwater layer along the coast, and the coastal land is salinized, which leads to the imbalance of natural ecological environment in the coast, estuary and bay and brings disaster to the coastal ecological environment system.

2. The water area has increased. Water evaporation is also more, the rainy season is prolonged, and floods are more frequent. The chances of being flooded increase, the degree and severity of being affected by heavy rain increase, and the life of reservoir dams is shortened.

The rising water temperature may melt the ice and snow in Antarctic Peninsula and Arctic Ocean. Polar bears and walruses will be extinct.

4. Many small islands will disappear without a trace; Will be infected with infectious diseases such as malaria ...

Due to thermal inertia, the existing greenhouse gases will continue to affect our lives. "

6. Rising temperature will affect people's fertility, and sperm activity will decrease with rising temperature.

Impact on climate

No one can say for sure how serious the harm caused by releasing more carbon dioxide and greenhouse gases into the atmosphere in the future will be. Scientists are estimating the harm caused by climate change. According to the current technical level, the formation and digestion mechanism of carbon dioxide in the atmosphere can only be clarified in 2004, and how the greenhouse effect is produced can be clarified. Only in 2006 can the sea level rise caused by global warming be accurately predicted. However, it will not be until 2050 that we can really understand all this. Obviously, scientists and politicians will not wait for further results before taking preventive measures. The present observation and research results should be made public, so that people will not have to swallow the bitter fruit after 50 years.

The greenhouse effect has been working since the formation of the earth. If there is no greenhouse effect, the surface of the earth will be extremely cold, the temperature will drop to MINUS 20℃, the ocean will freeze and life will not form. Therefore, we are not faced with the problem of whether there is a greenhouse effect, but the problem that human beings emit a lot of greenhouse gases into the atmosphere by burning fossil fuels, which leads to the greenhouse effect and the rapid change of the earth's climate.

What impact will the greenhouse effect have? Due to the burning of fossil fuels and the deforestation of a large number of forests, the concentration of carbon dioxide in the earth's atmosphere has increased. Due to the greenhouse effect of carbon dioxide and other gases, the global average ground temperature has increased by about 0.3-0.6℃ in the past 100 years, and it is expected to increase by 1-3℃ in 2030.

When the global average temperature rises 1℃, great changes will take place: sea level rises, glaciers in mountainous areas shrink, and the snow area shrinks. As the global temperature rises, it will lead to unbalanced precipitation, with precipitation increasing in some areas and decreasing in some areas. For example, in the Sahel region of West Africa, severe drought began at 1965; Since 1965, the precipitation in North China has decreased year after year. Compared with 1950s, the precipitation in North China decreased by 1/3, and the water resources decreased by 1/2. The drought-stricken area in China is about 400 million mu every year. In normal years, irrigation areas in China lack 30 billion cubic meters of water every year, and cities lack 6 billion cubic meters of water.

Due to the rising temperature, the global sea level has been rising at a rate of 1-2 mm per year in the past 100 years. It is predicted that the sea level will continue to rise by 30-50 cm by 2050, which will flood a large number of low-lying areas along the coast. In addition, due to climate change, climate disasters such as drought, flood and low temperature have intensified, resulting in global economic losses of more than tens of billions of dollars every year.

melting of glaciers

In recent years, due to the emission of "greenhouse" gas and universal belief, people began to pay attention to alpine glaciers from Patagonia to Switzerland.

The melting rate of Antarctic glaciers has accelerated.

The melting of the greenhouse effect was observed. In South Asia, the question is not whether glaciers are melting, but how fast they are melting. Although many adverse effects of global warming may not become very serious before the end of 2 1 century, glacial meltwater in Nepal, India, Pakistan, China and Bhutan may soon bring people trouble.

A research report of the International Snow and Ice Commission (ICSI) pointed out: "The glaciers in the Himalayas are retreating faster than anywhere else in the world. If the current melting rate continues, these glaciers are likely to disappear before 2035. " Saeed, head of the International Snow and Ice Committee? Ha Bosco Wong said: "Even if the glacial meltwater dries up within 60 to 100 years, the scope of this ecological disaster will be shocking."

Glaciers in the eastern Himalayas in the Ganges River basin have melted the most, and those distributed on the "roof of the world" from Bhutan to Kashmir have retreated the fastest. Take the 3-mile-long barna Glacier as an example. This glacier is one of many glaciers formed by the collision between the Indian subcontinent and the Asian continent 40-50 million years ago. Starting from 1990, it retreated half a mile. After the severe sub-arctic winter in 1997, scientists had predicted that this glacier would expand, but it retreated further in the summer of 1998.

Disease is rampant

Paul Perstein of the Institute of New and Recurrent Diseases of Harvard University noticed that plants also moved with the snow line, and plants on mountain peaks all over the world were moving upwards. With the warming of mountain peaks, the higher altitude environment is more and more conducive to the survival of mosquitoes and microorganisms such as plasmodium.

Since 1987, tropical infectious diseases such as West Nile virus, malaria and yellow fever have broken out in Florida, Mississippi, Texas, Arizona, California and Colorado in the United States, which has repeatedly confirmed experts' scientific inference that some tropical diseases will spread to colder regions due to climate warming.

New ice age

Another study on global warming is even more surprising. As the Arctic ice sheet melts, rainfall increases and wind types change, a large amount of fresh water is flowing into the North Atlantic, thus destroying the Gulf Stream. It is these warm currents that bring warm surface water from the Caribbean to the northwest of Europe, making Europe a warm climate. Once the Mexican warm current is cut off due to global warming, the temperature in northwest Europe may drop by as much as 5-8℃, and Europe may face a new ice age!

The research was conducted by the Scottish Marine Laboratory in Aberdeen, which analyzed more than 65,438+07,000 salinity measurements from Orchid Islands to Faroe Islands waters since 65,438+0893. In the past 20 years, the salinity and concentration of deep seawater flowing to the south have become smaller and smaller, which indicates that more fresh water has flowed into the region from the North Atlantic. These new data fully prove the computer model designed by German scientists about three years ago for the first time.

The content of carbon dioxide in the atmosphere is rising sharply, and the world population will reach 654.38+000 billion before 2050. "Our world is developing in the direction of replacing the existing free natural resources with man-made facilities", David of the University of Minnesota? Tillman said. However, we haven't mastered the knowledge about natural ecosystems. In the Permian extinction 245 million years ago, 96% of species became extinct. Later, with the emergence of many new species, the earth finally recovered its rich population, but this process has gone through 100 million years. Wilson said: "Some people think that nature will revive everything that human beings have destroyed." As the saying goes, "As long as there is enough time, everything can happen." Maybe nature can really restore everything, but this long process is meaningless to modern human beings anyway.

Mark? Twain once said that the most touching feature of the weather is its change. 1 After many centuries, we are still trying to predict the weather accurately, but we have little effect in controlling the climate. However, the damage to the environment is unprecedented.

1. Ecology

First of all, global warming leads to sea level rise and precipitation redistribution, which changes the current world climate pattern; Secondly, global warming affects and destroys the biological chain and food chain, bringing more serious natural consequences. For example, there is a migratory bird that flies from Australia to northeast China for the summer every year. However, due to global warming, the temperature in Northeast China is rising and the summer is prolonged, so the time for this bird to leave Northeast China is correspondingly warmer, and the time for returning to Northeast China is correspondingly delayed. As a result, a pest eaten by this migratory bird flooded and destroyed a large area of forest. In addition, extreme events related to the environment have increased, such as droughts and floods.

2. Politics

Limiting carbon dioxide emissions is equivalent to limiting energy consumption, which is bound to have a restrictive impact on all countries in the world. Whether developing countries reduce emissions or developed countries reduce emissions has become the focus of discussion. The greenhouse gas emissions in developing countries are increasing, and the problem of "emission reduction" after 20 13 will inevitably focus on developing countries. The scientific problem of preventing global warming will inevitably lead to the problem of "North-South relations", thus making the climate issue an international political issue.

3. Climate

Global warming has increased precipitation in Chinese mainland, especially in the middle and high latitudes, and reduced precipitation in some areas such as Africa. Frequency and intensity of extreme weather and climate events (El Nino, drought, flood, thunderstorm, hail, storm, high temperature weather and sandstorm, etc.). ) has increased in some areas.

4. Ocean

With the increase of global temperature, the amount of water vapor evaporated in the ocean has greatly increased, which has aggravated the warming phenomenon. The reduction of the total heat capacity of the ocean can restrain global warming. In addition, because the ocean releases excessive carbon dioxide into the atmosphere, the real culprit is the plankton community in the ocean.

5. Crops

The impact of global warming on crop growth has both advantages and disadvantages. First, global temperature changes directly affect the global water cycle, causing droughts or floods in some areas, resulting in reduced crop production. Excessive temperature is not conducive to seed growth. Second, the increase of precipitation will actively promote crop growth, especially in arid areas. The increase of carbon dioxide content with global warming will also promote the photosynthesis of crops, thus increasing the yield.

6. Human health

(1) Global warming directly leads to superhigh temperature, heart disease and various respiratory diseases in some areas in summer, which kills many people every year, especially newborns and the elderly. (2) Global warming leads to the increase of ozone concentration. Ozone in the lower air is a very dangerous pollutant, which can destroy human lung tissue and cause asthma or other lung diseases. (3) Global warming will also cause the spread of some infectious diseases.

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How to slow down global warming

Global warming has changed the earth in many ways, and some changes themselves will also inhibit the global warming trend.

First, global warming makes some ice and snow on the earth melt, and the total amount of global liquid water increases. And liquid

Giant aerial forest

The specific heat of water is higher than that of ice and snow. The increased heat due to the greenhouse effect did not significantly increase the temperature of water, because the total amount of liquid water on the earth increased. Although the increased heat due to the greenhouse effect significantly increased the temperature of rocks and land on the earth, it did not significantly increase the temperature of the whole earth because of its heat exchange with liquid water on the earth, which offset the greenhouse effect to some extent and delayed the melting of ice and snow on the earth.

Secondly, the global warming makes the green plants on the earth grow vigorously, and their photosynthesis absorbs more carbon dioxide (the main part of greenhouse gases) than before the global warming, and fixes some greenhouse gases, which no longer prevents the heat on the earth from radiating outward, and also offsets the greenhouse effect to some extent.

Global warming increases the total amount of liquid water on the earth, and green plants absorb more greenhouse gases, thus delaying the trend of global warming and helping to achieve balance. Of course, with the easing of the global warming trend, the increment of liquid water and main greenhouse gases absorbed on the earth is getting smaller and smaller. If the emission of greenhouse gases such as carbon dioxide is not reduced, the earth will heat up again, causing a new round of total liquid water increase and the growth peak of green plants on the earth, thus delaying the global warming trend again. Therefore, without reducing the emissions of greenhouse gases such as carbon dioxide, the above balance will be alternately formed and broken, making the earth's temperature fluctuate more than before, rather than increasing monotonously; If we reduce or fix the emission of greenhouse gases such as carbon dioxide, we can calm the fluctuation of the earth's temperature.

Scientists put forward a bold idea to build an artificial space ring around the earth, consisting of small particles or spaceships, to shield tropical sunlight and regulate the temperature of the earth.

However, some opponents believe that this idea will definitely have some side effects. A particle belt that can effectively scatter sunlight will make every night sky as bright as a full moon. And the budget of this project will be staggering, possibly reaching 6 trillion to 200 trillion dollars. Even NASA, the most well-funded scientific research institution in the world, cannot afford it. If the bulk particles are replaced by spacecraft, the budget may be less, and it is estimated that it can be reduced to about 500 billion US dollars.

Since the birth of the earth, the atmospheric temperature has fluctuated several times, and various factors such as solar radiation, cloud cover and greenhouse gases have affected or are affecting our climate. If you put a particle belt or spacecraft around the earth, a shadow will appear over the equator. In order to deploy these particles, you must use some special control spacecraft to look after the particle swarm like a sheepdog.

In the past century, the temperature of the earth has obviously increased, and this trend will continue in the next hundred years. Many studies have confirmed that in the next few centuries, the earth's temperature will rise by 1 to 20 degrees Fahrenheit, the sea level will rise obviously, and some coastal cities will cease to exist. Some scientists have pointed out that reducing sunlight will reduce the temperature of the earth, and some ground or space systems can completely achieve this goal. However, some scientists pointed out that it is still impossible to calculate how much sunlight the earth can absorb and how much sunlight is reflected back into space, which is a key step in implementing the above plan.

Research by American scientists shows that the activities of ancient farmers prevented the world from entering a new ice age. This result shows that global warming caused by human activities is not a new phenomenon, and it may have lasted for thousands of years. The British "Observer" recently quoted researchers as saying that prehistoric farmers who cut down trees and reclaimed the first field changed the content of greenhouse gases such as methane and carbon dioxide in the earth's atmosphere, and the global temperature gradually increased. Professor Qian Wei of the University of Virginia? Rudiman said: "If it weren't for the greenhouse gases brought by early agricultural activities, the current temperature of the earth would probably be the temperature of the Ice Age." Studies show that without human intervention, the earth will be 2℃ lower than it is now, and the spreading ice sheets and glaciers will affect many parts of the world. 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. Of course, according to modern environmental science research, the correlation between greenhouse effect and global warming is still being further explored. However, people do feel the abnormality of global warming. In this regard, scientists suggest that controlling greenhouse gas emissions may be a preventive measure.

There are two reasons for global warming: burning coal and natural gas produces a lot of greenhouse gases; The wanton felling of virgin forests reduces the ability to absorb carbon dioxide. The system of the atmosphere and the earth's surface is like a huge "glass greenhouse", which keeps the earth's surface at a certain temperature all the time and creates an environment suitable for human beings and other living things. In this system, the atmosphere can not only let the solar radiation penetrate to the ground, but also prevent the ground radiation loss. We call this protective effect of the atmosphere on the ground the greenhouse effect of the atmosphere. The gas that causes the greenhouse effect is called "greenhouse gas", which allows the short-wave radiation of the sun to pass freely and absorbs the long-wave radiation emitted by the surface. These gases include carbon dioxide, methane, chlorofluorocarbons, ozone, nitrogen oxides and water vapor, of which carbon dioxide is the most important. In the past century, the global climate has gradually warmed, and the content of greenhouse gases in the atmosphere has also increased sharply. Many scientists believe that the massive emission of greenhouse gases leads to the intensification of the greenhouse effect, which may be the root cause of global warming.

Human activities that emit greenhouse gases include: all fossil energy combustion activities emit carbon dioxide. Among fossil energy sources, coal has the highest carbon content, followed by oil and natural gas. Gas and natural gas leak during the exploitation of fossil energy, releasing carbon dioxide and methane; Industrial production processes such as cement, lime and chemical industry emit carbon dioxide; Methane is emitted by ruminants such as rice fields, cattle and sheep during digestion; Land use change reduces the absorption of carbon dioxide; Garbage releases methane and nitrous oxide. Humans burn coal, oil, natural gas and trees, and a large amount of carbon dioxide and methane enter the atmosphere, which warms the earth, makes the carbon cycle unbalanced and changes the energy conversion form of the earth's biosphere. Since the industrial revolution, the content of carbon dioxide in the atmosphere has increased by 25%, far exceeding all the historical records of the past 654.38+600,000 years that scientists may have investigated, and there is no sign of slowing down at present.

The main reason for global warming is that human beings have used a lot of fossil fuels (such as coal and oil) and released a lot of greenhouse gases such as carbon dioxide in the past century. Because these greenhouse gases have high permeability to short-wave radiation from the sun and high absorption to long-wave radiation reflected by the earth, they also include invisible electromagnetic pollution, which is often called "greenhouse effect" and leads to global warming.

Forests in the world are mainly divided into three categories: frigid (northern) forests, temperate forests and tropical forests. According to experts, today's forest ecosystem is gradually formed after 8000 years of evolution of nature. Nowadays, all virgin forests have become the targets of large-scale development and utilization of logging industry. In the tropics, many forests that have disappeared now have been cut down in the past 50 years. From 1960 to 1990 alone, more than 450 million hectares of tropical forests were swallowed, accounting for 20% of the total tropical forest area in the world; Millions of hectares of tropical forests have been degraded by logging, farmland reclamation and mineral exploitation.

Glacier virus was formed during the Quaternary Glacier Period, because the climate was extremely cold and the virus was frozen in the glacier. There should still be some in the melting glaciers in the North and South Poles, but how severe these glacier viruses are is still unknown.

1: Antarctica: The ice shelf is melting at an unprecedented rate.

Kilimanjaro: The "Snow Cap" will be removed in 15.

3. Arctic ice sheet: Arctic icebergs and ice sheets are melting.

4. Maldives: Due to sea level rise, 100 years later will become uninhabitable.

5. Venice: the phenomenon of seawater recharge threatens its existence, and it is predicted that it will be completely submerged by seawater in the middle of this century.

6. Alaska: Glaciers shrink and permafrost melts.

7. Great Barrier Reef: By 2050, 95% of living coral reefs will be killed.

8: Kitzbuhel, Austria.

9. Galapagos Islands, Ecuador: Two kinds of corals are classified as "extremely dangerous".

10: Patagonia region: Glaciers have collapsed in large areas in recent years.

Moreover, the global climate has entered the warmest period in recent 1000 years.

Abnormal temperature rise during the rice growing season will reduce the harvest. In addition, the decline of groundwater level and the depletion of wells in many parts of the world will also affect food production.

Glacier virus was formed during the Quaternary Glacier Period, because the climate was extremely cold and the virus was frozen in the glacier. There should still be some in the melting glaciers in the North and South Poles, but how severe these glacier viruses are is still unknown.

Affect urban water supply, water supply is insufficient.

Low-lying island countries such as Maldives and Seychelles will disappear from the ground, and coastal cities such as Shanghai, Venice, Hongkong, Rio de Janeiro, Tokyo, Bangkok and new york, as well as countries such as Bangladesh, the Netherlands and Egypt will also be doomed.