Global climate change and our responsibility

nature itself emits all kinds of greenhouse gases, and it also absorbs or decomposes them. In the long-term evolution of the earth, the changes of greenhouse gases in the atmosphere are very slow and in a circular process. Carbon cycle is a very important natural cycle process of chemical elements. The atmosphere and terrestrial vegetation, atmospheric and marine surface plants and plankton exchange a lot of carbon every year. From the perspective of natural forests, the absorption and emission of carbon dioxide are basically balanced. Human activities have greatly changed the land use pattern, especially after the industrial revolution, a large number of forest vegetation has been quickly cut down, the use of fossil fuels has also increased at an alarming rate, and man-made greenhouse gas emissions have increased accordingly. Globally, from 1975 to 1995, energy production increased by 5%, and carbon dioxide emissions correspondingly increased

Up to now, developed countries have consumed most of the fossil fuels produced all over the world, and their cumulative carbon dioxide emissions have reached an alarming level. For example, by the early 199s, the cumulative emissions of the United States reached nearly 17 billion tons, the European Union reached nearly 12 billion tons, and the former Soviet Union reached nearly 11 billion tons. At present, developed countries are still the main emitters of greenhouse gases such as carbon dioxide, and the United States is the largest emitter in the world. The total emissions of some developing countries, including China, are also growing rapidly. After the disintegration of the former Soviet Union, China's emissions ranked second in the world and became a country concerned by developed countries. However, in terms of per capita emissions and cumulative emissions, developing countries are still far below developed countries

In recent years, the hottest weather in the history of hundreds of years has appeared in countries around the world, and El Ni? o phenomenon has also occurred frequently, causing huge economic losses to countries. Developing countries are weak in disaster resistance, and the developed countries are not spared. In 1995, the heat wave in Chicago killed more than 5 people, and in 1993, a hurricane in the United States caused a loss of 4 billion US dollars. In the 198 s, the insurance industry's climate-related claims were $14 billion, and almost $5 billion between 199 and 1995. These situations show that the adaptability of human beings to meteorological disasters caused by climate change, especially climate warming, is quite weak, and actions need to be taken to prevent it. According to some current development trends, scientists predict possible impacts and hazards as follows:

Impact of climate change According to the announcement of the World Meteorological Organization, the past 1998-27 was the warmest decade on record. No one knows to what extent the impact of climate change can be regarded as "safe", but we do know the disasters brought by global climate change to human beings and ecosystems: extreme weather, melting glaciers, melting permafrost, coral reef death, sea level rise, ecosystem change, increased droughts and floods, deadly heat waves and so on. Now, scientists are no longer predicting these changes. From the Arctic to the equator, human beings have begun to struggle for survival under the influence of global climate change.

But all this is just the prelude to the impact of climate change. We are experiencing dangerous climate change, and the warming wheels are turning faster and faster. To stop this disaster, we must act at once.