As we are theoretically reaching “peak oil”, “peak gas” etc. as well as the occurring of global warming and a number of environmental issues, the call for more “clean”, “sustainable” renewable energy has been increasing dramatically. However, some critics argue that renewable energy such as wind, solar, biomass, alone can not sustain the world in the future. In this essay, I will argue that renewable energy is not a viable way for replacing established energy sources by analyzing the geographic and natural limitations, impacts on ecosystems and the efficiency on cutting greenhouse emissions of renewable energies. The real solution should be reducing energy consumption.
To what extent does the world have an energy crisis? There has been an enormous increase in the global demand for energy in recent years due to rapid industrial development and population growth, especially in the less developed countries. The crisis will become when demand exceeds supply. A crisis like this can develop as a result of industrial actions such as strikes and government refusal for the movement of merchant ships in or out of ports. The cause of these could be over-consumption or prices rising at oil refineries.
At one point, the idea of using a car that was electric powered may have seemed outrageous. Several questions emerged, such as: can it be done; would it work; how would it work; when would it happen; and how much would it cost. “Record-high oil prices have pushed consumers towards fuel-efficient vehicles and prompted many governments to consider electric transport as a way to escape their dependence on imported petroleum and to address climate change” (ebscohost.com). Here are a few of the many reasons why cars should be more efficient. First, cars should be more efficient because the cost to the consumer may decrease.
How can alternative sources of energy be harnessed affectively? Wrong ideas about alternative sources of energy People use the energy in their daily life. There are some of our energy such as water, coal, solar, natural gasses and fossil full. Today people spend more energy to respond their requirement but some energy isn’t renewable and the cost will increase every day. So people must to find the new energy to use and replace the old one.
Non-renewable fuels are organically-derived fuels. The original organic material, with the aid of heat and pressure, becomes a fuel such as oil or gas. These fuels are hard to come by and are sometimes harmful to the environment when burned. Concerns about these fuel sources has been very prominent in the past few years. Concerns greenhouse gas emissions and many other things such as energy security has caused for people to look towards a new source of fuel.
The inefficient engines consume too many resources so that people are anxious about that. In addition, the pollution is more and more serious in terms of the waste from engines, especially on the greenhouse effect by the exhaust gases of engines. Therefore, engines seem dangerous to the society and the earth. Although they have some negative influence on the environment and resources, it is doubtless that engines are more and more efficient with the development of technology and have changed people's life and history. Admittedly, in some engines such as atmospheric engines and hydrogen engines, they have little waste to exhaust.
Why is renewable energy needed and how can alternative sources of energy be harnessed effectively? Introduction The major source of energy comes from fossil fuels. People use fossil fuels in many fields, such as power electricity, heating, running cars and airplanes and manufacturing. However, using fossil fuels has led to several problems such as pollution produced, non-renewable and also the word demand increased, which is why we need renewable energies. This essay will show the reason why we need renewable energies and two solutions to use them effectively.
Presently, pessimism prevails. Many feel that the technology solutions created by an industrial economy to improve human well being has led to insurmountable environmental degradation. As coal and oil technologies reach an inevitable peak in production, unanticipated and uncontrollable consequences of their abuse are becoming more pronounced in natural systems not long after their introduction as the economic life vein. Even so, pushes for new technological development have emerged to counteract the damage already done and optimism remains to reverse their effects on the environment through innovation. As explained by Paul Gray, therein lies a technological paradox, that environmental deterioration is brought about by the industrial economy, but the progression of this industrial economy is and will be the road to successful environmental stewardship (Ausubel, 1989).
At first we thought that this is a gift from Mother Earth, but we now realize its consequences. Pollution and wastes that are excreted into the environment can yield devastating aftermath that will affect not only Earth, but also humans. After centuries from now, these sources will also be depleted. So we should find recyclable alternatives that are more efficient and cleaner than the traditional sources. Energy sources on Earth is finite, nothing will last forever.
Technology impacts the environment, people and the society as a whole. The way we use technology determines if its impacts are positive to the society or negative. For example, (POSITIVE IMPACT) we can use corn to make ethanol and this ethanol can be used as fuel. Fuel can be used to run machines and cars which will increase on output of manufacturing industries at a lower cost. (NEGATIVE IMPACT) However, if we decide to shift large quantities of corn to fuel production from food production, humans will be left with no food and this will cause world hunger which even be a worse situation.