... an extremely dirty source of power, and imposes huge costs on people's health, the environment and the economy." The combustion of coal releases carbon dioxide and other greenhouse gases that are the causes for the global climate change that we are experiencing. It is also a source of sulfur oxides ... for human health. In 2006, China added over 90 gigawatts of new coal-fired power plants and they added about 500 million tons of carbon dioxide to China's annual emissions. China's vast coal use has contributed to its 9.9% increase in total emissions in 2011 while the United States' ... fi...

• Word Count: 1955
• Approx Pages: 8
• Has Bibliography
• Grade Level: Undergraduate

... as an alternative, helps to extend the life of the petroleum supply on earth. Ethanol is a safe replacement for toxic octane enhances in gasoline and does not increase atmospheric carbon dioxide levels. The carbon dioxide formed during the combustion of ethanol is balanced by that absorbed during the annual growth of plants used to produce ethanol. Ethanol is low in reactivity and high in ... oxygen content, making it an effective tool in reducing the levels of ozone pollution. Similarly, ethanol reduces carbon monoxide and other toxic hydrocarbon like benzene emissions. Ethanol does no...

• Word Count: 1377
• Approx Pages: 6
• Grade Level: Undergraduate

... social benefits. Some good reasons to use biomass as a sustainable fuel: correctly managed, biomass is a sustainable fuel that can offer a significant reduction in net carbon emissions compared with fossil fuels, biomass can be sourced locally, on an indefinite basis, contributing to security of supply and Woodlands, forestry and agriculture are generally ... Instead it releases what would be released naturally as the organic matter decomposed. So, by burning biomass fuels we release no more carbon dioxide than would have been produced in any case by natural processes such as crop and pl...

• Word Count: 1387
• Approx Pages: 6
• Grade Level: Undergraduate

... we've seen an upswing in extreme weather events. Hurricanes, droughts, floods, forest fires, ocean acidification, rising sea-levels will all continue to worsen until we curtail the emission of carbon dioxide and methane. Therefore, with a greenhouse gas emitting activity such as fracking, we need to take the externalities, or indirect effects such as damages inflicted on people and the environment into ... of toxic wastes present in the environment increases, posing a greater risk of human and wildlife contamination. Also, the process of hydraulic fracturing requires the transportation ...

• Word Count: 2970
• Approx Pages: 12
• Has Bibliography
• Grade Level: Undergraduate

... during the combustion stage there is a release of unhealthy gases and solids that will be let out into the atmosphere, increasing air pollution and carbon emission. Some preventative measures are taken to catch the major particles let out in the process but many of them escape the screening and are ... let into the open air infecting the environment. The release of these extra Carbon emissions aside from the ones that occur naturally in the environment upset the balance of the Earth's gases. Most of the world is currently ... Cars are powered by a number of fluids and emit harmful gase...

• Word Count: 741
• Approx Pages: 3
• Has Bibliography
• Grade Level: Undergraduate

... versatility makes them an excellent candidate as an energy source. On an environmental note, solar cell use has low environmental impact. They do not emit any harmful gasses like Carbon Dioxide or Sulfur Dioxide. The United States has made great stride in harnessing them efficiently. The strongest argument against solar power use would have to be the high cost of purchase and installment ... ...

• Word Count: 1220
• Approx Pages: 5
• Has Bibliography
• Grade Level: Undergraduate

... replenished in a short period of time. The five renewable sources used most often include hydropower (water), solar, wind, geothermal, and biomass. Biomass does not add carbon dioxide to the atmosphere as it absorbs the same amount of carbon in growing as it releases when consumed as a fuel. Its advantage is that it can be used to generate electricity with the same equipment or ... ...

• Word Count: 727
• Approx Pages: 3
• Grade Level: Undergraduate

... areas. Now that an international consensus has confirmed the very real and very dangerous threat of global warming, every nation should consider renewable energy electrification as a possible solution to reducing carbon dioxide emissions per the Kyoto Protocol of 1997. National renewable energy initiatives are largely responsible for the historical development of solar wind and hydropower technologies, but governmental subsidies may not be ... ...

• Word Count: 888
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate

... .' The scorecard was developed with the help of the Environmental Protection Agency, suppliers and other stakeholders. The scorecard is used to assess packaging on criteria such as "recycled content " and "carbon dioxide per ton of production. " The article also reveals that Walmart has committed to purchase a certain amount of every product that the scorecard considers to be environmentally-friendly. This provides a huge ... ...

• Word Count: 2107
• Approx Pages: 8
• Has Bibliography
• Grade Level: Undergraduate

... , animals or the natural environment, as it does not emit any green house gases (Whitburn). Power plants that use fuel to generate electricity produce tons of pollution as they release carbon dioxide into the air. As opposed to other forms of energy sources, solar panels that absorb the sun's rays operate by capturing sunlight, which means no waste products are produced as ... ...

• Word Count: 1455
• Approx Pages: 6
• Grade Level: Undergraduate

... how much wind is used today there will be the same supply in the future. In 1990, California's wind power plants offset the emission of more than 2.5 billion pounds of carbon dioxide and 15 million pounds of other pollutants that would have otherwise been produced (http://www.sierraclub.org/energy,2002). It is hard to imagine an energy source that is more ... ...

• Word Count: 3789
• Approx Pages: 15
• Has Bibliography
• Grade Level: Undergraduate