Search release for U.S. Dept. of Energy the U.S.A. consumed more than 25,000 TWh of energy in the year of 2011,but from this amount just 11.7% was provide from renewable energy. As reported by Klare (2012), energy sources caused and cause many conflicts around the world. It causes the conflicts between Sudan and South Sudan, when Sudan tried to occupy the oil center of Heglig. It was the reason for a naval clash between China and Philippine, for an island with a natural deposit of oil and natural gas. Energy caused an issue between Egypt and Israel, when Egypt cutted off the natural gas supply from Israel. And, it was responsible for the mobilization for war of the USA upon Iran to take their oil reserves. …show more content…
The use of renewable energy can lessen the dependency on import of fossil fuel from other countries and stimulate the development of new and most efficient technologies; however, there is some disadvantages in unlimited sources. The installation and maintenance prices are higher than non-renewable. Eolic energy demand a large space, and make too much noise; hydroelectric usually demands a deforestation, and biomass produces greenhouse gases (Shah, 2011). There are many advantages of using non-renewable energy. This kind has a high efficiency, is easy to transport, and is the cheapest way to produce energy; nonetheless, this type is only found in some places on the earth and can cause a big disaster, like the Fukushima nuclear disaster. To energy be produced by fossil fuels issues a great amount of greenhouse gases, and it affects the life condition of the society. According to Handwerk (2010), these gasses are the responsible for the hole in the ozone layer, for the global warming and for many respiratory and cardiovascular diseases. Apergis and Paye (2011) …show more content…
In a short term, the concern is about the greenhouse gasses. According to United Nations, Framework Convention on Climate Change (UNFCCC), Copenhagen Climate Change Conference (2009), in 2009 close to 115 world leaders met in Copenhagen to discuss the climatic change. One of the decisions of this event was that developed countries must act to reduce the greenhouse gas emission, and spend US$100 billion a year by 2020 from a variety of sources. That means that the use of fossil fuels by the countries must change to non- renewable sources. In a long term, the fossil fuels should end. When the fossil fuels are exhausted, the energy supply must come from renewable and nuclear fusion energy. Nowadays nuclear energy comes from the fission of uranium atoms; this is a heavy atom that release energy when divided and produces radiation in the process. According to Kourabas (2014), the futuristic nuclear energy comes from the nuclear fission, is the same processes that release energy in the sun. This method consists of join two atoms of hydrogenous, and it is physically possible, but today there is no sufficient technology for it. Another renewable energy that will substitute the non-renewable founts is the solar. Solar energy is becoming more popular every day, and the biggest disadvantage of this type is the high cost and the inefficiency in a cloudy day or during the