That is thirty one thousand calories and a little over fifteen and half days worth of food--in other words, one gallon of aliphatic hydrocarbon, more commonly known as gasoline. ... Initially introduced in 1885 by Gottlieb Daimler and Karl Benz, the internal combustion engine works by a controlled explosion of fuel. ... The converter only works at high temperatures, completely rendering it useless at start up. ...

• Word Count: 923
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate

The three-way converter works the same way as the two-way converter. ... During warm summer days, the fuel in the fuel tank expands, due to the heat. ... The article Hydrogen Fuel Cell Vehicles also describe how the PEM fuel cell works: In a PEM fuel cell, an electrolyte membrane is sandwiched between a positive electrode (cathode) and a negative electrode (anode). ...

• Word Count: 1239
• Approx Pages: 5
• Has Bibliography
• Grade Level: Undergraduate

Northeastern cities only have a few days where it gets 90+ degrees, but soon they will have to deal with more hot days when the temperature gets over 100+ degrees. ... I believe we cannot stop global warming from happening, but if the human race has a better understanding of global warming and works together to help reduce air pollution in many parts of the world, we would without a doubt reduce the cost greatly....

• Word Count: 1025
• Approx Pages: 4
• Grade Level: Undergraduate

In a healthy farm system, agriculture works in harmony with the natural environment. ... The effects all this pollution can have on our health may be reflected in high rates of asthma and other respiratory symptoms as well as increased school absence days for children. ...

• Word Count: 1788
• Approx Pages: 7
• Has Bibliography
• Grade Level: Undergraduate

Other forms of credit production can be produced by no carbon producing energy sites such as wind turbines as depicted by this quote"[T}he development of a wind turbine by Yorkshire Water at Saltend treatment works in Hull, England to reduce its carbon emissions by 1,150 tonnes per year" (WARD). ... " (Keating) Even at 15 percent there is still a large chunk of revenue to be made on larger spills such as the Exxon Valdez (1989) or BP Deepwater Horizon (2010) in witch "4.9 million barrels of petroleum flowed into the Gulf of Mexico over 87 days" (Shultz). ...

• Word Count: 2430
• Approx Pages: 10
• Has Bibliography
• Grade Level: Undergraduate