1. Global 10 Major environmental problems 1, climate warming 2, ozone layer destruction 3, biodiversity reduction 4, acid rain spread 5, forest decline 6, land desertification 7, air pollution 8, water pollution 9, marine pollution 10, and solid waste pollution 2. China's environmental situation 1, air pollution is soot pollution. 2. Acid rain is mainly distributed in the south of Yangtze River, east of Qinghai-Tibet Plateau and Sichuan Basin. Acid rain pollution is the most serious in central China. 3. The water in rivers, lakes and reservoirs is generally polluted to varying degrees. Except for some inland rivers and large reservoirs, pollution tends to increase, especially in the waters near industrialized towns. 4. Among the seven major water systems (Pearl River, Yangtze River, Yellow River, Huaihe River, Hailuan River, Liaohe River and Songhua River), the Yellow River Basin, Songhua River and Liaohe River Basin are seriously polluted by water. 5. The pollution of total phosphorus and total nitrogen in large freshwater lakes is extensive and eutrophication is serious. 6. The Bohai Sea and the East China Sea are seriously polluted, while the South China Sea is relatively light. 7. The deterioration of the ecological environment in fishery waters has not fundamentally changed, and there is an increasing trend. 8. Urban environmental pollution is becoming more and more serious. 9, urban surface water pollution is generally serious, showing a worsening trend. Most rivers are polluted to varying degrees. 10, two thirds of the rivers and more than100000 hectares of farmland in China have been polluted. III. Theme of Environment Day over the years 1974: There is only one earth 1975: Human habitation 1976: Water, an important resource of life 1977: Concern about ozone layer destruction, soil erosion, soil degradation and deforestation 1978. 1980: New Year 10, New Challenge-Preventing Toxic Chemical Pollution 1982: Commemorating Stockholm Human Environment Conference 10, Raising Environmental Awareness 1983: Managing and Treating Hazardous Wastes and Preventing Acid Rain/kloc- Due to people's insufficient expectation of the negative impact of highly developed industries and unfavorable prevention, three global crises have resulted: resource shortage, environmental pollution and ecological destruction. People are constantly discharging pollutants into the environment. However, due to the diffusion, dilution, redox and biodegradation of atmosphere, water and soil, etc. The concentration and toxicity of pollutants will naturally decrease, which is called environmental self-purification. If the discharged substances exceed the self-purification capacity of the environment, the environmental quality will change adversely, endangering human health and survival, thus leading to environmental pollution. There are many kinds of environmental pollution: according to environmental factors: air pollution, water pollution and soil pollution. According to human activities: industrial environmental pollution, urban environmental pollution, agricultural environmental pollution. According to the nature and sources of environmental pollution: chemical pollution, biological pollution, physical contamination (noise pollution, radioactivity, electromagnetic wave) solid waste pollution, energy pollution. Environmental pollution will cause direct damage and influence to the ecosystem, such as desertification and forest destruction, and will also cause indirect harm to the ecosystem and human society. Sometimes this indirect environmental impact is more harmful than the direct harm caused at that time, and it is more difficult to eliminate. For example, the greenhouse effect, acid rain and ozone layer destruction are all environmental impacts caused by air pollution. This kind of environmental effect from environmental pollution is lagging behind, and it is often difficult to be detected or predicted when pollution occurs. However, once it happens, it means that environmental pollution has developed to a very serious degree. Of course, the most direct and easily felt consequence of environmental pollution is to reduce the environmental quality of human beings and affect their quality of life, physical health and production activities. For example, urban air pollution causes air pollution, and the incidence of people is rising. Water pollution worsens the quality of water environment, and the quality of drinking water sources generally declines, threatening people's health and causing premature birth or malformation of fetus. Serious pollution incidents not only bring health problems, but also cause social problems. With the intensification of pollution and the improvement of people's awareness of environmental protection, disputes and conflicts between people caused by pollution have increased year by year. At present, environmental pollution problems have appeared in different degrees all over the world, including atmospheric environmental pollution, marine pollution and urban environmental problems. With the globalization of economy and trade, environmental pollution is becoming more and more international. In recent years, the problem of transboundary movement of hazardous wastes is a prominent manifestation in this regard. Protecting the earth, since I started, Mother Earth has nurtured countless generations of children and grandchildren through the ages with sweet milk. It turned out that she was beautifully decorated by junior students. However, now human beings have tortured her to death for their own interests. There is only one earth for mankind; The earth is facing a serious environmental crisis. "Save the Earth" has become the strongest voice of people all over the world. I feel heartache for the deterioration of the surrounding environment. I think: if teenagers, as future successors, don't understand the composition of human environment and the seriousness of environmental problems, ignore the laws and regulations on environmental protection, don't enhance their awareness of environmental protection, and don't consciously fulfill their obligations to protect the environment, our lives will be destroyed in their own hands, and God will severely punish us. To this end, I am determined to start from myself, protect the environment, protect our homeland and be a guardian of the environment. In the past year, I actively participated in the tree planting activities carried out by the school, led the class cadres of our Senior One (6) Squadron to set up a "Green Angel" tree planting and green protection group, encouraged the team members to adopt a small sapling on campus, and used their spare time to decorate it carefully, laying the foundation for it to grow into a towering tree. In the signature activity of "Let the Earth Be Full of Life" organized by the school, I solemnly signed my name on it, writing down my determination and expectation for environmental protection and my vision for a better future. I actively participated in the prize-winning essay-writing activities held by the school in World Environment Day, carefully consulted and collected various materials, conducted social surveys, and wrote articles on environmental governance. I often take part in environmental protection lectures organized by the school, watch environmental protection videos, actively participate in environmental protection knowledge quiz activities, and fill in each question carefully. I participated in the website construction of "Green Team with Red Scarf", and posted many pictures and knowledge about environmental protection, as well as legal knowledge about various aspects of environmental protection, the development trend of environmental protection in China, and the environmental protection situation around the world. Every month, I will use the internet and newspapers to find some latest "environmental information" with different themes and sections to tell you; We also make some publicity boards regularly to publicize environmental protection knowledge and common sense of life. Raise everyone's awareness of environmental protection; Call on students to take care of their homes from different aspects, start from the little things around them and make contributions to the surrounding environment! I actively mobilize people around me to protect and build the same and only home of mankind according to law, promote the sustainable development of economy and society, and make contributions to human civilization. Together with my classmates, I also launched the initiative of "raising a potted flower, adopting a tree, cherishing every green space and making our surroundings full of green" and "replacing foam lunch boxes and disposable chopsticks with small plastic bags to keep us away from white pollution". Let's put down the convenient bag and pick up the vegetable basket. Let's move towards a bright green tomorrow and a brilliant future! According to a report I collected, "environmental problems are caused by unreasonable development and utilization of natural resources by human beings." Shocking environmental problems mainly include air pollution, water pollution, noise pollution, food pollution and improper development and utilization of natural resources. "Iron facts tell us that they are ruthlessly devouring human life like demons. It threatens the ecological balance, harms human health, restricts the sustainable development of economy and society, and puts human beings in a dilemma. To this end, I issued a declaration: "As long as we humans always have the awareness of protecting the environment and managing the environment according to law, the global village will become a beautiful paradise". The sky in the future must be blue, the water must be clear, the trees are shaded and the flowers are everywhere, so that human beings can enjoy the happiness endowed by nature. " The real test of our contribution to the environment is not words, but actions. "Although what I am doing now is just a small matter, I firmly believe that if we all have the responsibility to protect the environment, starting from ourselves and starting from small things, and working together to protect our homeland, we will naturally give humanity the rewards it deserves. Take a nap in the warm cradle-grassland; Grow up under the kind smiling face-the sky, and bathe in the river, the source of love.