Why is the weather so unstable? Thank you.

The bad weather caused by environmental pollution is undoubtedly caused by uncontrolled human self-behavior, such as greenhouse effect and acid rain, and so on. Among them, developed countries have an unshirkable responsibility, especially the United States, for its own interests, regardless of the opinions of other countries, has delayed signing an agreement on the Kyoto Protocol to stop emitting carbon dioxide standards to protect the environment. As a result, the progress of international environmental protection has stagnated. In a word, the improvement of natural weather can not be completed in a day or two. This requires a long process and the full cooperation of all countries that support environmental protection, including starting from small things.

Global warming refers to the increase of global temperature. In recent 100 years, the global average temperature has experienced two fluctuations of cold-warm-cold-warm, which can always be regarded as an upward trend. Since 1980s, the global temperature has obviously increased. 198 1 ~ 1990, the global average temperature increased by 0.48℃ compared with 100 years ago. The main reason for global warming is that humans 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. These greenhouse gases are highly permeable to short-wave radiation from the sun and highly absorptive to long-wave radiation reflected from the earth, which is often called the 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.

Not long ago, the United Nations Intergovernmental Panel on Climate Change issued a global climate change assessment report, which issued the most severe warning to mankind on global warming. According to the report, at least 90% of the global temperature rise in the past 50 years is caused by human activities. Rising temperatures lead to more frequent floods, heat waves, droughts and rising sea levels. Experts predict that from now until 2 100, the global average temperature will rise by 1.8 to 4 degrees Celsius, the sea level will rise by 19 to 58 centimeters, and some Pacific island countries will be submerged by rising seawater. In 2080, 200-600 million people will be affected by famine, and 1 100-3.2 billion people will be affected by water shortage. Global warming will directly or indirectly affect the lives of hundreds of millions of people. What should we do when human beings are suffering from global warming?

Faced with the terrible consequences of global warming, people have not paid enough attention to it so far, and the meaning of global warming is still in a state of half-knowledge. Many people don't care about such invisible things, such as global warming and rising sea levels. The author interviewed at random. Most people don't know what global warming means. Some people know a little, but they don't take it seriously. Some even think that it is comfortable to get warmer in winter, and there is nothing wrong with it. These people often talk about how the environment is deteriorating. However, the environment they care about is their surroundings. To be exact, they care about the small environment that harms their immediate interests and are indifferent to the big environmental awareness of the ecological environment.

The abnormal climate this winter has attracted unprecedented attention from world public opinion. This makes people suddenly feel that the frequent occurrence of abnormal climate puts human beings in danger, and people who thought they could control nature began to fidget. What harm does climate warming bring to human beings? First, the contradiction between supply and demand of water resources has intensified: global warming has led to changes in precipitation, and the contradiction between supply and demand of global water resources has become more and more obvious. Second, the threat of natural disasters is increasing: the frequency and intensity of tropical storms and hurricanes may increase. Third, the fate of island countries is worrying: melting ice and snow at the poles of the earth will lead to rising sea levels, many islands will be submerged, and some island countries may cease to exist. Fourth, there are frequent heat waves in summer: the report shows that if the global average temperature rises by 3 degrees Celsius, the number of heat waves in North America will increase by three to eight times. Fifth, the biological chain is disrupted: the change of the activity range of biological species will lead to the chaos of the biological chain between the earth and the earth. Sixth, infectious diseases are rampant: the spread of many infectious diseases spread by insects, food and water will expand. Seventh, economic development is eclipsed: according to statistics, in the 1990s, the average annual economic loss caused by major meteorological disasters soared from $4 billion in the 1960s to $29 billion, and human beings are suffering from global warming, which has become a reality that human beings must face.

Some people will find it difficult to understand that the reasons for climate warming are the progress of human beings, the development of science and technology and the improvement of people's living standards. With the deepening of scientific understanding of global warming, human understanding of global warming has been gradually enhanced, and climate warming has seriously affected the quality of human life and threatened human safety. We can't take this lightly, and we can't be careless any more. Whether for ourselves or for future generations, we should actively respond and seek effective countermeasures. The ancients also had the idea of "the joy of the world first, the worry of the world later", not to mention the people of 2 1 century.

Although human beings can't control climate warming, it is caused by human activities. If human beings on the earth are vigorously reducing the emission of pollutants, reducing energy consumption in various ways and popularizing new energy technologies, they can affect the changes in local areas and even the whole earth and reduce the occurrence of disastrous weather. In fact, controlling greenhouse gas emissions can start from many small things, such as taking less newspapers when flying, driving without unnecessary things and so on. Reducing greenhouse gas emissions is related to the living environment of everyone on the planet. Although these small things are small, everyone should "be good at small things and not do them."

In response to global warming, how should human beings develop in order to save the early warning of climate disaster? Undoubtedly, only by changing the concept of development, learning to live in harmony with nature, safeguarding the earth on which human beings depend and realizing sustainable development can we reverse the climate risk warning. As human beings living on the earth, we should shoulder the responsibility of maintaining the earth's home. Facing the environmental situation brought about by global warming, governments at all levels and experts and scholars in China attach great importance to it and put forward various countermeasures from different angles to find ways to solve the global warming problem. However, environmental protection in China has a long way to go. We should understand the problem from the perspective of building a harmonious society and realizing sustainable development, and seek better solutions, so that coping with climate warming will become one of the driving forces for China's sustainable development.