Solar energy systems are sustainable because they create no pollution and consume natural energy, unlike the fossil fuels used now to produce electricity and heat. ... They produce a clean, reliable energy that will greatly contribute to the reduction of using fossil fuel According to Tom Henheffer," 'fracking' is the horizontal drilling and hydraulic fracturing of shale rock in which each operation needs 11 to 26 million liters of water, which is mixed with toxic chemicals.... " Shuster uses this information to support his argument that with a constantly increasing natio...

• Word Count: 3481
• Approx Pages: 14
• Has Bibliography
• Grade Level: Undergraduate

"Wind and solar energy are reliable sources of electricity that can diversify our nation's energy portfolio" (CLE), the United States is gradually rising in the amounts of pollution and excess wastes that have been accumulated over the years. Although the preservation of energy may be costly, the increase in global pollution could eventually cost not only money but lives. ... By 200 B.C., simple windmills in China were pumping water, while vertical-axis windmills with woven reed sails were grinding grain in Persia and the Middle East" (WEF). ... "Solar water heating pa...

• Word Count: 3408
• Approx Pages: 14
• Has Bibliography

Our current society struggles from fossil fuel shortage and pollution, which call for explorations of different types of energy and multiple ways to produce clean energy for daily and industrial uses. ... Algae can grow in different water environments, such as freshwater, sewage and saline. ... The principle of the open ponds essentially supplies microalgae strains into the natural water sources (lakes, ponds) or artificial water environment, allowing natural photosynthesis and providing inorganic nutrients to enhance growth. ... Water temperature is advised to maintain within 60-80 oF for opt...

• Word Count: 3194
• Approx Pages: 13
• Has Bibliography
• Grade Level: Graduate

A number of energy companies are now moving into renewable energy sources due to a number of reasons like the ever decreasing petroleum reserves of the planet which will invariably exhaust one day, the pollution being caused burning petro-chemicals and the damage it is doing to the atmosphere etc. ... Majority of the existing companies use these technologies to at an individual consumer level for the purpose of either providing illumination or warm water. ...

• Word Count: 2776
• Approx Pages: 11
• Has Bibliography
• Grade Level: Undergraduate

However, the technology or knowledge is not yet known to be majorly efficient, so current uses that help save some money and energy are that it can "be used to charge storage batteries aboard boats, to operate lighthouses, used in remote areas for pumping water either for cattle or irrigation, and to supply power for emergency telephones on highways. "(Bortman) All of which, do not cause air pollution, appealing to the people who strongly believe in global warming. ...

• Word Count: 3689
• Approx Pages: 15
• Has Bibliography
• Grade Level: Undergraduate