What impact will global warming bring to mankind?

The earth is getting hotter and hotter, and it doesn't feel cold even in winter. It can be said that the climate point where human beings are now is the highest in the past ten thousand years. Everyone who lives on the earth seems to have a fever! No, not human beings have a fever, but our home, the earth has a fever.

The earth is having a fever. Maybe many people will laugh and say it's ridiculous, but this is a fact that can't be ignored. The reason is the "greenhouse effect". In the atmosphere around us, some gases are called greenhouse gases, such as carbon dioxide. These gases cover the earth like a "greenhouse": they let solar radiation pass freely, but they absorb a lot of radiation reflected or emitted by the ground-it is easier for radiation to come in than to go out, which makes the surface temperature of the earth rise. This process can be called "natural greenhouse effect". However, due to the large amount of greenhouse gases released by human activities, more infrared radiation is transferred back to the ground, which strengthens the role of "greenhouse effect". As a result, the earth has a fever.

Decades ago, a reporter in The New York Times wrote an article mocking "global warming" as nonsense. But decades later, the major media in the world are paying attention to this phenomenon, and the headlines are full of words such as "global warming, melting glaciers, rainstorm, drought, disaster and loss". The fact of global warming cannot be ignored. The occurrence of various natural disasters constantly rings the alarm of global warming.

Global warming-a disaster caused by human beings

There is an island country in the South Pacific called Tuvaru. This island country is located between Hawaii and Australia, and consists of a ring coral island. However, this island country, known as the "Pearl of the South Pacific", issued a warning of national subjugation because of the threat of global warming and sea level rise caused by the deterioration of greenhouse effect! Waves are seriously attacking the coastline of Tuvaru, and soil erosion is becoming more and more serious. Many islanders were forced to move to high places and even became "climate refugees", sighing: "Where is my home?"

There is a world-famous Malibu Beach in California, USA, which is the favorite place of celebrities, surfers and people with dreams. However, scientists predict that by the end of this century, there may be only stone walls left on the beach to resist the Pacific Ocean waves.

These phenomena are not unique. Due to global warming, the human world is already facing a great threat to its existence. In the face of disaster, human beings can't help asking: "Who will pay for global warming?" Scientists have different opinions on this, and there is still no definite conclusion. But there are no more than two views: first, due to natural reasons, the sunspot cycle and the time when the earth's temperature rises are at the same time. Second, human factors, according to authoritative research, more and more scientific arguments tend to be that human behavior is the primary cause of global warming.

The study of global climate change caused by human activities can be traced back to the end of 19. In 1896, Swedish scientist Svante algie Nice predicted that burning coal might change the climate of the earth. His research found that when the carbon dioxide in the atmosphere doubles, the global temperature will rise by 5 ~ 6℃. After that, many scientists studied it. From 65438 to 0957, Rivera and others published a paper in the United States on the possible climate change caused by the increase of greenhouse gas concentration in the atmosphere. In the same year, Hawaii Observatory began to observe the concentration of carbon dioxide, which officially opened the prelude to human research on climate change.

The destruction of the atmosphere is the main cause of global warming. The atmosphere is the air layer around the earth, which is composed of nitrogen, oxygen, argon and other gases. When the sun passes through the air, the solar radiation can be weakened by them to varying degrees, forming the current balanced earth climate system, and human beings have adapted to this state. However, since the last century, due to the rapid development of industry and the burning of a large number of fossil fuels, hundreds of millions of tons of carbon dioxide have been discharged into the atmosphere, and the annual emissions are as high as several billion tons. Coupled with the destruction of green vegetation, forests have been cut down in large quantities, which makes the carbon dioxide content in the atmosphere rise rapidly and breaks this balance. Leading to global warming and frequent disasters. Since 1860, the global average temperature has increased by 0.6 0.2℃. The warmest years in the last hundred years all appeared after 1983. The temperature rise in the northern hemisphere in the 20th century was the highest in the past 1000 years.

The rapid population expansion is also one of the main factors of global warming. At the same time, it also seriously threatens the balance between the natural ecological environment. According to the latest survey figures, the global population is now close to 6.5 billion. Moreover, the population in most parts of the world is still growing steadily, and it is estimated that the global population may exceed 7 billion in 20 12. The carbon dioxide emitted by so many people every year is a series of amazing figures, which will directly lead to the continuous increase of carbon dioxide content in the atmosphere and directly affect the climate change on the earth's surface.

Don't think that global warming only affects the climate, and the disaster brought by this change is far beyond our imagination. Let's look at a few specific events and data:

The influence of climate and temperature changes on the natural and human environment is gradually emerging. Climate warming leads to sea level rise. About13 of the world's population lives within 60 kilometers of the coastline, and millions of people in these countries are seriously threatened.

In recent years, the climate is always in an abnormal change. Every year, a heat wave sweeps across the country. In recent years, thousands of people have died in India, Pakistan and other countries in South Asia due to the hazards of heat waves. There has been no rain in some parts of Europe for several months, which has caused rivers to dry up, crops to die, and people and animals to have difficulty drinking water, which has caused serious life threats.

Africa is unfortunate. Although they are not the main emitters of greenhouse gases, they are the biggest victims of global warming. Meteorological disasters caused by abnormal weather in Africa are more frequent. Due to drought and strong evaporation, the water surface of Lake Chad is shrinking. In Central Africa, forest fires and locusts caused by drought have destroyed large areas of forests and crops.

From 800 to 1200, the average temperature in the North Atlantic was higher than it is now 1℃, and corn began to take root in Norway. However, by the year 1500 ~ 1800, there was a little ice age in western Europe, and the average temperature was only 1℃ ~ 2℃ lower than it is now, resulting in half of Norway's cultivated land being deserted and almost all agricultural farming activities in Iceland stopped.

Meteorologists suggest that with global warming, diseases spread by insects such as malaria and dengue fever will probably affect 40% to 50% of the world's population, which will greatly threaten human health and daily life.

In terms of greenhouse gas emissions, developed countries are still "big households", but due to the pressure of environmental pollution, developed countries have transferred some industries with high pollution and high energy consumption. 1984 65438+On February 3, 2008, an explosion occurred in the pesticide plant opened by Union Carbide Company in Bopa, India, which killed nearly 20,000 people and severely damaged the local environment, becoming a typical case of international pollution transfer in the history of world environmental protection.

After 1980s, multinational corporations controlled 90% of logging industry in Gabon and 77% in Congo, which seriously damaged the local forest ecology and forced local residents to move to other places for energy exploitation, thus forming a vicious circle of ecological destruction. The ecological balance of developing countries has also been seriously damaged. The disaster caused by global warming has spread all over the world.

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All this, all this, is the bane of mankind, and nature broke out with her irresistible force! The disaster of global warming has spread like a plague, which has affected and will continue to affect all aspects of people's lives!

If the carbon dioxide content continues to rise, the greenhouse effect will become more and more serious and the temperature will get higher and higher. At that time, the glaciers and icebergs at the poles of the earth may melt, and the sea level may rise by 50 cm 2 100 years ago, endangering the global coastal areas, which may be submerged or invaded by seawater. 40,000 species of animals and plants will cease to exist before the middle of the next century.

If global warming continues to dominate the earth, it will have a great impact on agriculture. Almost people all over the world are concerned about the soaring oil prices, but few people would have thought that in the next few decades, people might pay attention to the prices of various foods in supermarkets as they do today. In the future, people's food prices may be 50 times higher than now.

If the ecological balance continues to be destroyed, this big garden where people live will no longer be safe. At that time, nature will be crazy, and all kinds of catastrophes will be like the end of the world described in Revelation. These abnormal climates are all related to the greenhouse effect.

If the greenhouse effect continues to wreak havoc, global warming will become the main factor of human health in the next century. In the next century, extreme high temperature will make human health problems more frequent and common. It is endangering your breath, your heart and your skin, and its severity is far beyond your imagination. ...

Human beings have caused injustice to the earth, and the earth is retaliating against human beings!

The temperature of the earth is getting higher and higher, and the sea level is getting higher and higher. Are you ready to swim? I believe no one wants to see this scene ... everyone is causing global warming. The electricity we use, the cars we drive and the things we buy ... bring us a lot of convenience in transportation and medical care, but also give us responsibility. Man's influence on the earth's surface is very different from that of yesterday. Dealing with nature, a little carelessness will lead to bad consequences. Facing the danger of life, everyone has a desire to survive, and it is everyone's responsibility to care for the environment. We can choose to minimize personal carbon dioxide emissions. The antidote is in your hands and mine. We just need to make a decision to make it work.