Renewable Energy Critical Thinkings Samples For Students

Sustainable Energy

Sustainable energy sources are relatively cheap and are infinite, meaning that they would never run dry. Some sources of renewable energy which a sustainable society would draw its energy in the future includes Solar energy, wind and hydropower.
Solar energy is the ultimate source of power. It contributes either directly or indirectly to the other forms of generating energy. Solar power comes from the sun. The sun remains the greatest energy source for our solar system. Solar energy can be utilized in lighting and cooling buildings, generating electricity, heating purposes and other large scale industrial uses. A sustainable society ...

Renewable energy resources are those—unlike coal and fossil fuel—that are continuously being replenished over time (BBC). Wind and biomass are some of the many alternative energy resources used today. These alternative resources of energy does not produce greenhouse gases thus, they are environmentally friendly. However, both renewable energy resources also have their downsides.
While wind has a zero net emission of CO2 the biomass fuel cycle emits a negligible amount of CO2 during electricity production since the greenhouse gas is fixed by plants. At optimum conditions a wind turbine has the capacity to produce at least 500kW of electricity ...

The usual criticism we encounter when adopting sustainable practices is that it does not promote growth. It is well known that nature has its limits and it will sustain only when people adopt a growth strategy that is environmental or nature-friendly. However, fiscal interest is often compromised while choosing eco-friendly measures. While this has always been the criticism with sustainability, currently we have a different type of criticism and that is the politicization of sustainability. According to this, sustainability regulates life and steals freedom. The increasing political pressure on choosing sustainability has caused many countries to withdraw their membership ...

Restoring democracy in the United States will require major reforms that reduce the power of corporations, elites and special interests in the whole political process. Right now, there is a radical disconnect between the political and economic elites and the needs and interests of the ordinary voters. Most people today realize that the country is in its worse crisis since the Great Depression of the 1930s, but government and the political system seem dysfunctional and incapable of dealing with it. Removing the power and control of big money from the political process forever would be the most important step in ...

Windmills have been widely used since thousands of years to pump water for agricultural purposes, propel ships and grind grains. As civilizations advanced, other convenient sources of energy replaced wind energy. Currently, fossil fuels that include coal, oil and natural gas fulfill the energy needs of nations across the world. These fuel sources are responsible for polluting the environment through the emission of hydrocarbons that cause global warming and various other environmental hazards. Also, these non-renewable energy sources are much limited and continue to deplete from the face of the earth. Therefore, wind energy that can be tapped conveniently ...

Interpretation

Geothermal energy refers to the sustainable heat generated from beneath the earth, which composes of hot rock, hollow ground, and hot water. The extraction of this type of energy links to environmental hazards that threaten its widespread exploitation.

Analysis

Geothermal power plants cause atmospheric pollution. The extraction process in geothermal fluids relates to the emission of gases, water, and steam. It primarily entails the generation of power, which leads to the emission of non-condensable gases. A larger percentage of Carbon dioxide produced by external; sources come from geothermal activities. The power plants produce 1000-5000 times a lesser amount of Carbon ...

Stedman, Richard C, John Parker and et al., "Resource Dependence and community Well-Being in rural Canada." Rural sociology. 69.2 (2004): 213-234. Print.

Summary

Stedman et al., conducted a research study in their paper “Resource Dependence and community Well-Being in rural Canada” for comparison of community reliance on natural resource industries in Canada (Stedman, and et al. 213-234).
Stedman et al., have discussed different parameters of well being (employment, income, in-migration education and poverty) that rely on natural resource industries (fisheries, mining, forestry, agriculture and energy) in different regions of Canada. According to authors, it is very hard to give a ...

Critical Thinking

There has been much debate about the benefits of moving to renewable energy sources with the economics of the change mired in biases and incomplete data. The two articles1 present arguments related to the economics of electricity generated through renewable sources with the emphasis placed on wind as a key generating source of electricity. Both articles express support for the environment and look at the economics of generation while making certain assumptions. There is often a narrow perspective taken of the topic and overall information which results in the article from the Union of Concerned Scientists (UCS) lacking scientific or general ...