1. Fossil Fuels
We get energy from sunlight, wind, nuclear plants, and damns However, most of the energy that we use comes from fossil fuels. There are three major fossil fuels: Coal, oil and natural gas. These are composed of carbon, hydrogen, nitrogen, oxygen and sulfur. Carbon is the major element in fossil fuels. We obtain energy from fossil fuels by burning them. Coal is the most abundant fossil fuel in the U.S. Yet it has a major disadvantage. It is a strong pollutant. When it is burned, it releases impurities like nitrogen and sulfur, which combine with water vapor to create "acid rain-. Also, coal is a major contributor to the imbalance of the carbon cycle. When coal burns, it forms carbon dioxide. Scientists believe that carbon dioxide traps the earth's heat in a process called the "greenhouse effect-. However, scientists have developed new methods to burn coal more efficiently, filter impurities before they are released in the atmosphere, and cut down on the release of carbon dioxide. .
Oil is another important fossil fuel. It is found under tons of rock, deep in the earth's crust. Precisely, oil is found in rocks, trapped in little pores. When an oil well is dug in the earth, pressure from the reservoirs will make the oil spurt to the top of the well. When oil is pumped out of reservoirs, about only ¼ of the oil available will be accessible to the pumps. Scientists and engineers have yet to discover a method to collect the remaining ¾ of oil. Often, natural gas is found with oil. In some cases, oil companies separate the two fossil fuels and inject the natural gas back into the reservoir, creating enough pressure to allow more oil to spring to the surface. Natural gas is a colorless, odorless gas. It is responsible for fueling over half of the United States' homes' appliances. Some countries have discarded natural gas because they think it is worthless. Precisely, there isn't enough natural gas to last very long in the future.
Hybrid cars are powered not only by conventional fuel, fossil fuel, but also by electricity which it generates during everyday driving. ... How much fossil fuel do we really have left, and how long until it's gone? ... However, they are a temporary solution to the main problem of using no fossil fuels. ... For the research on fossil fuel I will look in environmental magazines. Try and get some statistics of usage of fossil fuels in the US and the rest of the world in order to get an estimation on how much fossil fuel we have left....
What are fossil fuels and where do they come from? By definition fossil fuels are energy rich substances that have formed from long-buried plants and (micro) organisms; hence the name fossil fuel. ... Fossil fuel consumption and depletion Fossil fuels are largely burned to produce energy. ... The use of fossil fuels or other substances derived from fossil fuels have dire consequences. ... In 2001 fossil fuel fired power plants (power plants that run on the use of fossil fuels) produced 64 percent of the world's electrical power. ...
It was an ideal state for the formation of fossil fuels. ... For this reason, fossil fuels do not belong only to the past. ... Fossil fuels are the major sources of energy in the world. ... Fossil fuels have been around for many years. ... Fossil fuels generate huge amounts of power per unit at a time. ...
We will eventually deplete are supply of fossil fuels and must start taking steps now to become less dependent. ... Highlights of Differences There is a limited amount of fossil fuel. We must drill and pump fossil fuels and transport them to be converted into gasoline. ... Difficulties Before Becoming "Mainstream" The change from an energy economy based on fossil fuels to an alternative one is not going to be an easy one. ... With the pace of consumption of are fossil fuels actions need to happen in the very near future, we can not keep pushing back the dead lines being placed for a chan...
For many decades, fossil fuels have always been considered a reliable and well-developed source of energy; they had offered the world the possibility to evolve in terms of transportation, industry and technology. Moreover, the energy systems and structures established in order to feed the cities all around the world are exclusively designed for the usage of fossil fuels. ... According to what we said previously, it ´s important to clarify fossil fuels are very unique substances to be found in earth surface, it takes million of years to be form substances like petroleum, for instance, the cont...
Fossil fuels were always available and they were fairly cheap to purchase. ... Not only are the fossil fuels going to be extinct before long they are also harmful to the Earth. Burning fossil fuels is a major source of anthropogenic CO2, a major heat-trapping greenhouse has. ... (Harper pg 227) Alternative fossil fuel choices are increasing more and more throughout the years. ... About 85% of the energy comes from Fossil Fuels nuclear power provides the last 8%. ...
All other energy sources are known as fossil fuels. A fossil fuel is, for example, oil or coal. ... Also the reservoir of fossil fuels in limited. ... Fossil fuels are burned in power plants. ... On the other hand many people will also lose their jobs if the fossil fuels are depleted. ...
Is it a good idea to replace fossil fuel now or science fiction due to high cost and technological difficulties? ... However, states have the liberty to choose to implement and use renewable energy rather than the common fossil fuel. ... Most countries have notice that they cannot depend on fossil fuel energy forever. ... The old generators consume large quantities of fossil fuel and have to be turn-on all the time. ... If the old generators are shut-down, it will take time to be turn-on and it will consume a lot of fossil fuel in the process. ...