Energy and the Environment

Energy and the Environment

  What is energy? Energy is the abilities to do work. Human need energy to do everything such as walk, talk, think, play,... human eat food and from that we can absorb energy. Energy is important to human life, without it we cannot do work just like your phone run out of batteries. There are many different kind of energy such as kinetic energy, potential, chemical, thermal energy, they have different kind of function and occur in different way among us. Also we have different use of energy like renewable and nonrenewable.

  Twenty-first century is the age of energy wars. People are fighting for energy supplies. Oil and natural gas are top most concern, where all the conflict of human come from. However, Energy not only cause conflict, but also the environmental issues. Human are fighting for their gold but also it can also cause their death.

  Oil and natural gas are nonrenewable resources. These are widely exploited and used because they are cheap and easy to find. Look at the name and energy itself we can see that nonrenewable resources are not able to be replace, because it have limit amounts. According to statistics, the remaining oil can be used in 50 years and natural gas can last for the next 75 years. Maybe one day in future when we run out of natural resources, we will live in darkness and there will be chaos. Moreover, the use of renewable energy release can be harmful to the atmosphere, such as green house gas and other dangerous chemicals was release into the air. Nonrenewable energy is both good and bad.

  And the question is asking is that is there a better alternative?
  Renewable energy resources are replenish quickly and can be use again. common renewable energy resources are sunlight, wind, hydroelectric power. Sun give give us a lot of light energy, but it will burn out in the next 6 billion years and it a very long time that we not really care about. Wind is kinetic energy help to turn the turbine and produce electricity. Hydroelectric power dam uses the same principle. These are friendly resources seem to be common but it is usually thing to start both energy war and environment problems. However, these resources have a weak point, we all know that they are free but to build a machines that can use them can be cost a lot. For example, to buy a solar panel system is quite expensive and also fee to set up is high. But once you buy it, you will never care about lack of energy because light energy is plenty and you will get it every morning. Building wind turbine and hydroelectric dam is expensive. Therefore, very few people think to about build these infrastructure.

  How to save energy? This is big question, and I can help you out with that without build expensive infrastructure.
- Unplug seldom-used appliances.
- Turn off computer instead switch to sleep mode.
- Turn off light when going out.
- Turn off A.C when you go out your room.