Developing nuclear energy is the need of society. At present, the world population is 6 billion, and the population of China is 65.438+300 million. The United Nations predicts that by 2050, the world population will increase to 9 billion. With the rapid growth of population and the rapid development of economy, the demand for energy has greatly increased, and will triple in 2050, so today's energy structure cannot meet the needs of a huge industrial society. Human beings need energy, which leads to the over-exploitation of fossil energy such as coal and oil, which not only exhausts the earth's fossil fuels. Moreover, these fossil fuels have accumulated in the ground for hundreds of millions or even billions of years and are non-renewable. For us, they are not only fuels, but also precious paleontological fossils. What's more, the pollutants released by fossil fuels will also make the earth overwhelmed. Although we use a small part of its energy, it brings more environmental problems. So we need to develop more new energy sources, more precisely, we need clean energy. A coal-fired power plant with 6.5438+100,000 kilowatts will burn 2-3 million tons of coal a year. Burning so much coal a year will not only discharge more than 200,000 tons of cinder, but also 6-700 tons of carbon dioxide, 500-65438+100,000 tons of sulfur dioxide, 20-30,000 tons of nitrogen oxides and 30-6 tons of air. In addition, it will also emit about 4 million tons of heavy metals, as well as the well-known acid rain, which is also caused by sulfur dioxide and nitrogen oxides emitted from coal combustion. Of course, we have to mention the greenhouse effect. We all know that carbon dioxide is one of the main greenhouse gases, which slows down the outward emission of the earth's heat and makes the earth's temperature rise gradually. According to the International Climate Committee, if human beings emit carbon dioxide as they do now, by 2 100, the rising temperature of the earth will raise the sea level by about one meter. By then, our vast islands and shoals will be submerged. What's more, global warming will also cause various natural disasters such as drought, flood and tsunami, and will also bring various new diseases. Although we have put forward various restrictive measures for this, even a small amount of emissions, many together, still have great pollution. In addition, some developing China countries need energy support to develop any industry they want, so it is impossible to reduce the use of chemical dyes. Therefore, nuclear power, a clean energy source, has attracted more and more attention. The construction of nuclear power plants has been gradually put forward by many countries. As an effective measure to alleviate the world energy crisis, the advantages of developing nuclear energy have many advantages: its fuel has many advantages, such as small size and large energy, and nuclear energy is millions of times larger than chemical energy; 1000g uranium releases energy equivalent to 2400t standard coal; A large coal-fired power station with a capacity of 1 10,000 kilowatts needs 3-4 million tons of raw coal every year, and 2760 trains are needed to transport these coals. The PWR nuclear power plant with the same power consumes only 28 tons of low enriched uranium fuel with 3% uranium content a year; The cost per pound of uranium is about $20, which is about $0.00 1 kilowatt, which is much more suitable than the current traditional power generation cost. And because the transportation of nuclear fuel is small, nuclear power plants can be built near the most needed industrial areas. The capital investment of nuclear power plants is generally one and a half to two times that of the same thermal power plant, but its nuclear fuel cost is much cheaper than that of coal, and its operation and maintenance cost is also less than that of thermal power plants. If you master the nuclear fusion reaction technology and use seawater as fuel, it is inexhaustible and convenient to use. There is also strong security. Since the first nuclear power plant was built, more than 400 nuclear power plants have been put into operation all over the world, which have been basically safe and normal for more than 30 years. Although the accident 1979 occurred in the pressurized water reactor nuclear power plant in Three Mile Island, USA, and the accident 1986 occurred in the graphite boiling water reactor nuclear power plant in Chernobyl, the Soviet Union, both accidents were caused by human factors. With the further improvement of PWR, nuclear power plants may become safer. Of course, the cost of nuclear power generation is not easily affected by the international economic situation. Nuclear fuel is not a fuel for daily life, unlike oil, which will lead to war. Will not be affected by economic factors, and the cost source is more stable than other power generation methods. The most important thing is that the pollution is small and there is no high pollution load on the environment. Thermal power plants constantly discharge harmful substances such as sulfur dioxide and nitrogen oxides into the atmosphere. Of course, the combustion of coal is also inseparable from the emission of carbon dioxide, which is the root of the greenhouse effect, one of the serious pollution problems at present. Without carbon dioxide, greenhouse gas emissions have been greatly reduced, and the greenhouse effect industry has been alleviated this year. At the same time, a small amount of radioactive substances such as uranium, titanium and radium in coal will also fall around the thermal power station with the smoke and dust, polluting the environment. Nuclear power plants have set up layers of barriers, which basically do not emit substances that pollute the environment, and even radioactive pollution is much less than that of coal-fired power plants. According to statistics, when the nuclear power plant is in normal operation, the radiation impact on residents in one year is less than the dose received by X-ray fluoroscopy. The greatest advantage of nuclear power generation is that it has great energy as we know it. It can generate a lot of energy with a small amount of nuclear fuel. The energy of 1 ton of low enriched uranium is equivalent to about 50,000 tons of heavy oil. In addition, the advantages of nuclear power generation are as follows: 1, low pollution. The way of nuclear power generation is to use the heat energy released by nuclear fission of nuclear reactor to generate electricity. Nuclear power generation will not discharge a lot of pollutants into the atmosphere and will not cause air pollution. Especially compared with coal-fired power plants, nuclear power generation will not produce carbon dioxide, the "culprit" of global greenhouse effect. Nuclear power plants have set up layers of barriers, which basically do not emit substances that pollute the environment, and even radioactive pollution is much less than that of coal-fired power plants. As far as fuel resources are concerned, the earth is expected to supply. There are abundant nuclear resources in the world, including uranium, thorium, deuterium, lithium and boron. The global uranium reserves are about 4 1.7 million tons. The available nuclear fuel resources and energy on the earth are more than100000 times that of fossil fuels. 3. Convenient transportation and low cost. The energy density of nuclear fuel is millions of times higher than that of fossil fuel, so the fuel used in nuclear power plants is small and easy to transport and store. For example, nuclear power plants use 80 tons of nuclear fuel every year, and only two standard containers can hold it. If it is replaced by coal, it needs 510.5 million tons, and it is enough to transport 705 vehicles with 20 tons of trucks every day. This is selected from several papers. You can refine the question of free debate yourself, which is somewhat uncertain. But for example, clean energy can reduce the burden on the environment and promote the social and economic development brought about by national development. . . . .