Renewable sources of energy, such as solar and wind power, will soon replace fossil fuels.
As many environmental concerns which are closely related to fossil fuels is increasing, a lot of controversy exists over whether fossil fuels will be replaced with renewable source of energy within a short period of time or not. Actually, there are many pressing problems from constant using fossil fuels, such as air pollution, global warming, and massive environmental destruction. In this sense, I believe that changing energy source in near future is obvious because people fully recognize these problems and will try to find solutions as soon as possible. Advanced technology of using renewable energy sources and increasing vigorous companies’ investment will accelerate humans' endeavor of replacing fossil fuels with renewable source of energy.
To begin with, a wide range of experiments in order to use eco-friendly energy sources have conducted and some of them are already finished. This means that they can be applied whenever people want. For example, a Japanese scientist of Tokyo University has studied for last 5 years to realize using the wave energy. He finally invented possible system with higher efficiency by alleviating concerns over higher costs of construction and operation. He also states that this technology is totally ready to use whenever it is needed. Also, in Greece, 90% of electric energy which is consumed every year has been supported by solar power and other advanced countries with high technology of using renewable energy source including solar power and wind power are making an effort on practical application.
On top of that, according to many experts, the investment in promoting researches, studies, and application is drastically increasing. One significant reason is that many companies which recognize the importance of using renewable source of energy in terms of making profits are starting to fund their money. In fact, if the using is practically applied, company can reap huge sums of money from it. According to many studies, the renewable source of energy has about 1000 times of cost-efficiency than fossil fuels. Also, it is environmentally-friendly, which will considerably reduce the cost involved in by-products treatment.