Some people think it for granted that alternative energy seems more expensive than fossil fuels. Thus, it is better for us to use those (1. those는 복수 명사와 쓰죠. 2. 이렇게 쓰면 those가 가리키는 게 alternative energy가 됩니다.) energy. However, in my opinion we should use alternative energy sources such as solar and wind. This is because they are helpful to overcome energy crisis and good to people’s health.
Admittedly, alternative energy sources might have problems. When we make solar panels to get energy from the Sun, it (이 대명사가 가리키는 것은 무엇?) generates harmful materials such as CO2 carbon dioxide which is a the main reason for global warming, grease (이게 solar panel이 “generate”한 물질인가요?) which is used between parts on the panels, and non-disposable wastes which are plastics. Additionally, building the solar panel requires large areas of tract to install. Also, there is another type of renewable energy, wind power. It destroys natural landscape and promotes wind erosion leading to detrimental situation for the environment.
However, renewable energy sources is helpful to overcome energy crisis. Fossil fuels ranging from coal to natural gas have been almost depleted. Thus, we need to take action to use alternative energy, reducing the use of fossil energy. As an example to explain, I set up a water boiling machine using sun power in my house. This is because I cannot stand up any more the skyrocketing electricity fees any more. An electricity company in Korean said they had no choice but to raise the price for generating electricity due to the small amount limited supply of oil, coal, and natural gas in the world recently. However, thanks to the water boiling device without using electricity, I can save a lot of money for monthly utility fees.
Moreover, green energy sources do good to our health. This is because such a kind of energy does not create toxic chemical materials for living things on the Earth. To be more specific, coal and petroleum generate exhaust fumes when burned. These pollutants will easily be changed to cause acid rain, having negative impact on earth and water. Thus, any creatures including human beings would be highly damaged to health. For example, according to one of a medical reports in the Korean national hospital, nowadays, hundreds of thousands people living in the heavy developed industry society are suffering from physical diseases such as headache, high blood pressure, and asthma. These kinds of ailments result from air pollutions by millions of cars and lots a lot of factories. Also introducing air pollutions into earth turns out to be a the main reason for the deformation of flora and fauna. Had it not been for using of fossil fuels, the people would be healthy today. Thus, we should rely on alternative energy sources for both people and animals living on the Earth.
All things considered, although it is better for make to use of fossil fuels because of cheaper prices, I strongly believe that we have to use more green energy sources instead of fossil ones. The reason is that using alternative energy not only provides a valuable chance to overcome energy crisis, but also makes people stay in shape.
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