Monday, April 27, 2009

Relationships Between Human With Energy

There is a close relationship between the human energy. Human industrial revolution up to use only a small part of energy that is in the nature which is called renewable energy. Since industrial revolution, made possible the large amount of energy that comes from coal. Entering the 20th century use of the petroleum energy expanded, and the last natural gas and nuclear energy have been used to sustain the needs of energy in large amounts. The period after the industrial revolution can be referred to as the era of the use of renewable energy or fossil fuels such as natural gas, oil and coal in large numbers, who to this very day still continues.

Increasing human activity and the large demand for the practicality and comfort of human life, result in increased energy consumption. With the reason that until now, energy problems became the reason for the need of the nations in the world to fight. On the other hand, there is a movement to review the relationship between human beings with energy, raised concerns because damage will occur due to the earth environment energy consumption in large scale. Estimated in the 22 century will be a scarcity of fossil fuels, therefore, need to be energy business development to replace the fuel is.

To be able to live in the space that the earth is limited, people are required to be able to develop a balance between economy, energy and the environment.

1. Human history and the energy

Which distinguishes the human animal, among others, on the fire, other than the language. Can be said that there is a close relationship between human beings with energy. Before the industrial revolution human utilizing a variety of objects as a source of energy to support activities, including charcoal to heat the room, the oil from plants for lighting, energy for horses or cattle farming or transportation of goods. In addition, along with advanced human civilization, starting from the energy used in the form of windmill or waterwheel for the agricultural and manufacturing products. All energy used is renewable energy from nature, and human energy that is consumed only a small portion of the energy that is in the nature. For example, in Japan the life of ordinary people up to the era of World War II, about 50 years ago, is also using energy. According to human history and energy, a point major changes occurred since the industrial revolution found steam engine, which utilizes a large amount of coal. Increased energy consumption drastically happens in mid-1800 the year ditopang mainly by coal. Because the size of the coal industry after the revolution, at the end of the 19th century occurred the amount of coal energy exceeds the energy that comes from plants. Then in 1859 the oil industry immediately began mining of oil by EL Drake in Pensylvania, and then the oil is used as a source of energy. Entering the 20th century use of petroleum energy, such as for the more widespread electricity, the car engine, etc.. The oil crisis that occurred in 1973 and 1979 to make people think that this world depend on oil too.

Currently, in addition to coal and oil, has also used natural gas, nuclear and others to sustain that energy consumption continues to increase. In the mid 20th century the use of nuclear energy has changed the world energy situation. Up to the time before nuclear energy was introduced, all types of energy sources other than wind and water using the burning of carbon through chemical reactions. After that people develop the nuclear energy as a new change of mass into energy.

Increased human activities and the demands of practicality and comfort of living, will result in increased energy consumption. Era after the industrial revolution can be said as a time of energy consumption from fossil fuels in large-scale, such as coal, oil and natural gas, and continues until now. But at this time has raised concerns the occurrence of environmental damage due to earth's energy consumption with the large scale, and the visible movement to review the relationship between human beings with energy.

Meanwhile, oil and natural gas estimated to be exhausted in the 21st century, the supply of coal is estimated to still be able to use about 200 - 300 more years, will culminate in the 22 century, and the symptoms appear that fossil fuels will be exhausted in the 22 century. If we expect people in the prosperity that is still long, however, required the development of renewable energy as a substitute for fossil fuels.

2. Human activity and energy

Humans need energy to perform various activities. To be able to live in the area of the cold energy for heating is required, for lighting at night. It takes a lot of energy to perform various activities actively. This can be seen very clearly in the industrial revolution that appear in the UK since the second half 18 centuries. Due to industrial revolution occurred this drastic change from the previous community based on agriculture into community based on industry, which result in changes in values of the community. So that industrial revolution can occur in the required amount of energy, and to solve this problem and developed steam engine by James Watt et al, and the fuel used is coal. Can be said that without a supply of energy in large, industrial revolution will never happen.

3. War and energy

Industrial revolution also affect how people fight. Before the industrial revolution made especially with the war manpower, horse power, wind energy and others. After that change to the war who spent a lot of energy because the boat is driven with a coal or oil, tank or aircraft that is driven by oil. In addition, the energy itself to be the cause of a war. World War II that occurred after the industrial revolution can be said one of them caused by the energy (mainly oil source), and for Japan, one of the reasons for war is to control energy resources in South Asia. As a result, the United States and the UK on a winning World War II, the oil in the Middle East with seven companies, among others, Exxon and Mobil of the United States, British Petroleum and Shell UK, and this company is the main oil companies internationally.

Although not directly related to the war, the first oil crisis occurred in 1973 caused the war to the Middle East-4, the second oil crisis occurred in 1979 the Iranian revolution. The oil crisis caused a disruption of the world economy.

4. Environment and energy

Consumption of fossil fuels after the great industrial revolution than to provide practicality and convenience in human life, also causes a drastic increase in population. Before the industrial revolution, the earth is only slightly increased, in the early 18 century the world's population to around 600 million. After the industrial revolution the number of inhabitants increased quickly, based on estimates in 1999 about 6 billion people inhabit the earth. Thus, the population of the world since the appearance of man up to 18 centuries in a few million years only increased to 600 million people, but only after the industrial revolution 300 years in time grow to be 5 billion people. The population of the world in the 21st century, in the year 2050 will reach 15 billion, most of the growing population is estimated to occur in developing countries.

What happens to the earth pressure due to this growing population? As a result, among others, going short of food and energy consumption in large amounts. That in view of the world energy consumption in recent years increased rapidly. Almost all the energy consumed is a fossil fuel such as coal, oil and natural gas, nuclear energy is the rest or water power. As a result of the energy consumption of this large (especially fossil fuels), industrial countries have developed great economic growth, the community with a prosperous life. Further estimated the population will increase rapidly, developing countries pursue economic growth to improve lives, and in line with increasing GDP, in the amount of energy required is very large.

As a result, as already indicated above, environmental pollution problems that accompany the consumption of energy in large amounts. Initially, due to the large consumption of coal, the area around the factory full of smoke, air pollution because of toxic materials such as soot and acid sulphate with the health of workers and residents. Lately, due to sea water pollution accident ship tankers also become a problem. Finally, problems arise due to global warming CO2 produced from burning fossil fuels, and this gives a great influence to the energy policy in each country, and although discussions have been carried out internationally, it is very difficult to find a way to press CO2, because CO2 excluded from a wide range of activities. With the background population explosion of this kind, or to maintain the economic growth needed resources and energy consumption in large numbers, the result will appear as a result of a series of increasingly bad environment. Close relationship between economic growth, energy resources with environmental problems is called problem dilemma, and at this time seems to have no policy to overcome this.

One step to overcome this problem is with the energy savings targets for effective energy utilization, development and utilization of energy to replace fossil fuels. Fossil energy use of opium caused a lot of carbon dioxide is there in the air in the days of old, there are many consequences of carbon in the air at this time. So burn the fossil fuel burning means the inheritance that occur in the evolution of a long period of time as well as within a few hundred years, and this makes the tendency increasing CO2. Phenomena due to global warming, serious problems in the earth's surface, such as increased sea water, changes the ability of living plants, accelerated the process of becoming deserts. Therefore, the required energy savings and energy of fossil fuels. Problems with fossil energy than there is, for example, power generation can damage the natural water such as rivers and river areas, nuclear power generation have any possible radiation pollution, wind power generation has environmental problems such as noise, natural, poison against birds. So this is a problem the energy problem which is difficult for people.

Whatever you choose, since men are expected to grow at this time reflect the balance between economic, energy and environment, in order to survive in the limited space of the earth.

1 comment:

Unknown said...

A correlation is presented between the UN human development index and per capita energy consumption for 120 nations.Human Development Reports - United Nations Development Programme (UNDP)of the relationship between energy supply and the consumption of energy .
Don Blankenship