Sustainable Developmentu Essay Example | Topics and Well Written Essays - 1000 words

Sustainable Developmentu - Essay Example The main problem that the world has been facing has been resulting from overexploitation of resources and pollution of the environment. Therefore the concept of sustainable development has become synonymous any time the world is talking about looking at the problems that are threatening the survival of the future generation. Sustainability in the world has been encompassed in the concept of sustainable development that has become a common term all over the world. There have been development of various polices by various governments which are aimed at ensuring that there is sustainable development in their countries. As defined the UN, sustainable development is development that meets the needs of the present generation without compromising the ability of the future generation to meet their needs. Therefore it is development that is well integrated in the use of resources which will enable us to meet our needs from those resources and at the same time enable the future generation to meet their needs from the same resources. We are therefore the custodian of the resources for the future generation. (Bateman 2005, p. 4) There are many reasons that have been given to explain why the world needs to embrace the concept of sustainable development. ... Therefore we have to take a step to protect what is providing us with all we need. The other fact has been the interfaced with the emerging technology in the world. As we strive to meet our needs there has been technological freedom that has made it difficult to control environmental degrading technologies which continue to be a danger to the world. Therefore we have to come up with measure that will help us to regulate our technology in order to be in line with environmental sustainability means. (Ramond, Lindsey and Todd 2003, p. 3) What is being done to ensure sustainable development There have been various efforts that are being implemented in all sectors of the world in order to ensure that there is sustainable development. There have been realizations that we cannot do without technology and therefore one of het best approach to curb the rate of degradation of the environment and ensure sustainability has been the adoption of the appropriate technology. Technology has been playing a crucial role in sustainable development since it has been one of the most significant way in which humans have been interacting with the environment. Therefore a sustainable technology is the helps the society to move towards sustainability and that fits well with the goals of sustainable development. It is practical solution that is used for economic development and satisfaction of human needs while living in harmony with the environment. A sustainable technology is a technology that meets some of the basic characteristics through which it can be distinguished from others. It is a technology that minimize the use of non renewable energy an natural resource

Solar cells Research Paper Example | Topics and Well Written Essays - 1750 words

Solar cells - Research Paper Example Most of the energy sources we are using at present are nonrenewable in nature. Fossil fuel energy and nuclear energy are the popular energy sources at present; however, these energy sources are not only getting exhausted but also causing problems to the environment. Moreover these energy sources are non-renewable in nature. On the other hand, solar energy is a renewable energy source. But the technologies available to exploit solar energy is not developed properly yet. Whatever the solar energy exploitation technologies available now are expensive compared to the other energy sources and hence still we are relying on conventional energy sources such as coal, fossil fuel, nuclear energy etc. However, solar energy seems to be the most important renewable energy source which may help us to solve our energy crisis in future. â€Å"Solar energy systems consisting of solar collectors, sensible energy storage and a closed loop flow circuit† (Garg & Garg, p.75). Solar panels represent solar collectors and sensible energy storage means photovoltaic cells or sola r cells. Solar is cell is an equipment which converts solar energy into electrical energy. Photovoltaic cells are currently used to operate solar devices. Photovoltaic cells contain certain chemicals which may undergo chemical reactions (Photovoltaic effect) in the presence of solar energy to produce electricity. Solar panels collect energy from solar radiations and transmit it to the solar cells which convert this energy into chemical energy first and then to electrical energy when required. An inverter helps the transmission of electrical energy from solar cells to the electrical circuits when needed. It is believed that solar energy can solve the energy crisis up to certain extent if utilized properly. It should be forgotten than the solar energy exploitation technology is highly expensive. However, sunny cities and wealthy rural areas can think about the