The key to improving these problems is the development and application of technology, thus, the technology needs of society owing to the rapid growth of the global population increases more and more. What we need the most to support large populations is above all energy. Without energy, both humanity and society will not able to function properly because energy is one of the most fundamental, indispensable things in our life. Humanity produces and uses energy by transferring and transforming energy resources. Therefore, how to deal with energy resources will be one critical question in the world where the global population becomes over 9 billion. On the other hand, many scientists and researchers predict the water shortage, food shortage, and depletions of energy resources due to the increase in the global population. While water covers 70 percent of the Earth’s surface, only about 3 percent of the world’s water is fresh water, and we can only use one-thirds of that because the other two-thirds are water vapour in the air or glaciers. As a consequence of this, many people in the world already started to suffer and get waterborne diseases due to the lack of water. As the population constantly grows up, the number of operating factories will increase and the consumption amount of the …show more content…
Food is as important as water to us all because the human body needs to consume food in order to produce energy, to rebuild body cells, and to prevent diseases, however, many scientists and researchers also predict a food shortage owing to a serious lack of agricultural water and land. This shows how the shortage of one of the natural resources can affect the amount of the other energy resources and represents that the energy resources are proceeding towards the serious shortage state. Not only these natural resources, but also non-renewable energy resources such as fossil fuels are anticipated to end up with the depletion. The overuse of fossil fuels by the large population can increase the average temperature of the Earth as well as can cause many other severe global issues. At this point, the key to improving and solving these problems and worries is our technological development. Many scientists, researchers, and technologists all over the world have already created a lot of technological developments that may resolve these problems and they still try to