Nearly all of this energy is produced by burning fuels. Nearly all of the countries are trying hard to prevent and control air pollution. People will continually find new ways to control pollution. In the meantime. Automobile. The burning produces wastes, engineers try to design and locate new power plants to do minimum damage to the environment. There indeed seems to be no end to tasks that environmentalists will be required to do.
However; worldAir pollution is one of the major problems of the modern world, too. Also.
Scientists are finding ways to stop air pollution especially in big industrial areas and densely-populated cities, some of which remain in the air;clean", trains. They are studying new ways of generating electricity that may be less damaging to the environment. A great deal of energy is needed to run the factories of modern industrial nations, many power plants are being modernized to give off less polluted material, causing air pollution, planes and busses need energy, it may be that we still have a long
before we have a "
空气污染对气候的影响:
the impact of air pollution on climate
air pollution is now discussing how they affect climate. the most serious air pollution is generated by burning: the burning of sulfur in coal and oil, will produce sparse oxides; air to participate in high-temperature reaction, will produce nitrogen oxides; will produce incomplete combustion of hydrocarbons and carbon monoxide; while combustion of pyrolysis gasoline, but also release lead; ... .... however, even the cleanest fuel combustion will produce carbon dioxide. of course, the animal's breathing process, the same release carbon dioxide, and that of carbon dioxide into the atmosphere, about 80% came from breathing, only 20% from fuel combustion. however, the burning destroyed the natural balance of carbon dioxide, so that the concentration of atmospheric carbon dioxide increased year by year, which may cause the "greenhouse effect", so that the earth's rising temperatures.
turbidity current growth rate of the earth, or even greater than the concentration of combustion caused by co2 growth rate, therefore, atmospheric turbidity will influence the earth's climate can not be ignored. the increase in turbidity over the world there are many reasons, such as fuel consumption increase, fuel increase in agricultural machinery, mechanized farming, and so an increase in young earth.
in addition to the greenhouse effect and atmospheric turbidity may affect the earth's climate, other factors such as sunspot activity, etc., to some extent also affect the earth's climate. sunspot activity since 1900 are constantly increasing. as the sunspot can increase the amount of solar radiation and thus cause rising temperatures.
the air pollution on the earth's climate, they are not scientifically conclusive evidence on the. most of was a bold ex海缉奋垦莪旧烽驯甫沫trapolation.
Once man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be unlimited.
Today things are different. The world has become too crowded. We are using up our natural resources,and polluting our environment with dangerous chemicals. If we continue to do this, human life on earth will not survive.
We realize that if too many fish are taken from the sea, there will soon be none left. Yet,with modern fishing methods, more and more fish are caught.We know that if too many trees are cut down, forests will disappear. Yet, we continue to use powerful machines to cut down ... Once man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be unlimited.
Today things are different. The world has become too crowded. We are using up our natural resources,and polluting our environment with dangerous chemicals. If we continue to do this, human life on earth will not survive.
We realize that if too many fish are taken from the sea, there will soon be none left. Yet,with modern fishing methods, more and more fish are caught.We know that if too many trees are cut down, forests will disappear. Yet, we continue to use powerful machines to cut down more and more trees. We see that if rivers are polluted with waste products, we will die. Yet, waste products are still put into rivers.
We know that if the population continues to rise at the present rate, in a few years, there won't be enough food.What can we do to solve these problems?
If we eat more vegetables and less meat, there will be more food available. Land for crops feeds five times more people than land where animals are kept.
Our natural resources will last longer if we learn to recycie them.
The world population will not rise so quickly if people use modern methods of birth control.
Finally, if we educate people to think about the problems we shall have a better and cleaner planet in the future.
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