Whoops, looks like something went wrong. Within the course of recent burning topics for essay writing, scientists are considering the application of alternative energy sources to save the actual capacity of energy. This is done in a reasonable economic and environmentally friendly manner to face many global challenges related to the rising consumption of global resources.
Alternative energy sources are not based on splitting of atoms or burning of fossil fuels. This approach actually excludes otherwise atmospheric pollution from nuclear waste by-products and burning fossil fuels. Hence, the alternatives that produce less significant impact on the environment include: solar energy, wind power, geothermal and hydroelectric resources. The well-developed economies like the US consider hydrogen as a source of great environmental potential since this clean energy fuel significantly reduces economic dependence on imported energy sources. Initially, the main issue on the agenda concerns facilities needed to make, store and move hydrogen. Furthermore, economical fuel cells, appropriate technologies, innovative solutions and eco-oriented educational programs are the key prerequisites of the coming transformational process in the USA. At present, the US produces more than 9 million metric tonnes of hydrogen, which is enough to power up to eight million households or 30 m.
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However, for the time being, hydrogen is mostly applied for the industrial purposes, including metallurgy, refining, and food-processing. The overwhelming majority of overall amount of hydrogen production covers only three states: Louisiana, California, and Texas. The primary user of hydrogen as an energy fuel is NASA within the framework of its space program. Hydrogen fuel cells are used as efficient means to make electricity. Alternatively, fuel cells are also actively applied as emergency power sources in hospitals and remote locations. In addition, portable fuel cells are available to power laptops, cell phones, and military devices.
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Electric motors that use using a fuel cells store hydrogen gas and convert the hydrogen into electricity for the motor. Such vehicles are deemed as exclusively eco-friendly since they do not pollute the surrounding environment. Ethanol fuel is widely applied as a biofuel alternative to gasoline used in vehicles. Ethanol is easily manufactured and processed made from ordinary crops, including corn and sugar cane. Further main advantage is that ethanol is a renewable resource and can be used immensely. Furthermore, bio-ethanol is manufactured mainly to replace fossil fuels in vehicles. Concerns relate to the large amount of arable land required for crops, as well as the energy and pollution balance of the whole cycle of ethanol production.