... rating of 20%. This means that only 20% of the energy stored in gasoline is being used, with the rest going to waste. Fuel cell powered cars can reach an efficiency of closer to 50%. Since fuel cells don't burn gasoline, they are much more efficient than combustion engines. The byproduct of fuel ... cells is water and heat, compared to carbon dioxide of combustion engines, which also lowers the pollution emitted by fuel cell cars. The pollution from fuel cells is much smaller than that of fuel combustion because fuel cells rely on chemistry to generate energy, and not combustion. A ... ...

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• Grade Level: High School

... the fossil fuels have been burned up and it is too expensive to use it in the large scale economy. I believe hydrogen fuel cell powered cars will take over the automobile market for several reasons. First, hydrogen is one of the most abundant resources on the planet and can be extracted ... type of body style on the same engine. Fourth, unlike today's motors, hydrogen fuel cells are 100% ecologically safe. Fifth, hydrogen fuel cell cars are catching on fast in the automobile market around the world. Significance of the Problem/Purpose Statement The fact that we are burning fossil fuels f...

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... various types of pollution including greenhouse gasses which cause global warming. Fortunately, more and more newer technologies are beginning to replace the natural fuels. Transportation is very important today. From cars to airplanes, they all burn fuel. Since the natural fuels are quickly running out, new fuels are invented. Beginning in 1998, many new American automobiles have been built so that ... . This technology is very efficient and produces no pollutants. Although this is a very efficient fuel, there are only 13 hydrogen stations in the world because of its cost. Some new cars...

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... ). Non-renewable energy is becoming scarcer with the population of people in the world. Oil is used to fuel cars, as the cars combust the gasoline, toxins are being put into the environment. In order to keep the pollution rates lower, hybrid cars should be used. Hybrid cars use an alternative energy source to power the car. Instead of using normal fuel to power ... cars, hybrid cars use fossil fuel energy to energize the car. Electric cars have also been introduced to society, but not many people have taken the initiative to ... is stored with multiple rechargeable batteries to power th...

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... . Many automotive companies are turning toward hybrid and electric vehicles. This is a good long term solution only if the cars are not being produced at an excessive rate. This is because the production cost, both economical and environmental, for hybrid and electric vehicles is larger ... energy that goes into transportation. Again, pollution fees could be a useful way of making people think twice about driving and buying gas guzzling cars. We should also shift our focus to public transportation such as the California high speed rail. These kinds of projects, while initially very costly...

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... and deforestation are really affecting the planet, then should people eliminate fossil fuel from their lives? Are there any alternatives to power people's houses, cars, and etc? The truth is there are some alternatives to getting power, but the problem is the cost of building these alternatives. One alternative ... Done?"). But if nuclear power plants are too scary, maybe fuel cells will be safer to use. Fuel cells car not common, but some cars are starting to use fuel cells instead of burning gasoline. "Fuel cells generate electricity by splitting hydrogen atoms into electrons and proto...

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... an non renewable source. As a result, our country has become dangerously dependent on imported energy. The U.S. dependency on imported oil recently reached 60 percent. The petroleum is mainly used for cars. The prices for the petroleum have increased a lot over the years. Today, an average gallon of petroleum costs about $2.10 in many states while other's charge much more. Also, the ... demand for it has tripled since 1985. If the demand for Petroleum continues to increase then eventually in 2050, there won't be any left to be used for cars. In my opinion, I think we should do more to c...

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... make up the three major forms of fossil fuels. Fossil fuels provide most of the energy that powers our modern day industrial society. Everything from the gasoline that fuels your cars to the natural gas that heats our homes are all fossil fuels. Fossil fuels formed during the Carboniferous Period, a part of the Paleozoic Era. The Carboniferous Period occurred from about ... the peat turned into coal, oil/petroleum, and natural gas. Fossil fuel consumption and depletion Fossil fuels are largely burned to produce energy. This energy is used to power out cars, trucks, airplanes, trains, sh...

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... correlation between income and carbon emissions, the higher your income the more carbon you emit. Science Nordic3 states that this relationship exists as the wealthy travel, fly, and driving their cars more often than someone who is in the lower bracket of income. This is confirmed by an article by the News Centre4 from the University of Berkley as well as ... we used the amount of time that they had spent in their car and we used the set amount of petrol that each type of car uses per kilometre: Small cars – 0.053, Medium Car – 0.094 and Large Car – 0.118. We then set a constant ...

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My Geography Essay on Global Warming Introduction In this essay I will be talking about the causes, effects and solutions of global warming. Global warming is caused when factories and cars burn fossil fuels and let off carbon dioxide into the atmosphere. Carbon dioxide in the atmosphere plays an important role in warming the earth by trapping the earth's heat, in ... ozone layer. CFCs are used in some aerosol cans polystyrene and refrigerators. Causes Two of the main causes for global warming are cars and factories. Factories use fossil fuels to burn so they can make what ever they"re makin...

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... and is usually found in underground areas called reservoirs. Most of the petroleum bi-product is used to produce energy. We use propane to heat our homes and fuel our cars. Other products made from petroleum include: ink, crayons, bubble gum, dishwashing liquids, deodorant, eyeglasses, records, tires, ammonia, and heart valves. Petroleum has other environmental problems. It damages the land that ... , harmful gases are less used. As well, there are continuous effort to make products that use more adequate methods of energy. Some of these new ideas are, solar and electrical cars. Although...

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... that run on batteries fuel cells are almost endlessly rechargeable and offer more power which is a distinct advantage over electric cars such as GMC's EV1. Disadvantages There are currently a few disadvantages of the hydrogen fuel cell automobile. Thy hydrogen based fuel cell cars today are extremely expensive to produce. Not only are the fuel cells themselves expensive, but the hydrogen that powers ... an pure hydrogen. 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. Before cars usin...

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... amounts several kilometers under the Earth's surface or the ocean floor in most locations around the world. Ever wondered where the electricity we use comes from? Or the petroleum our cars run on? Or what produces the different types of energy we use everyday? Coal, oil and natural gas are the major sources of energy we use everyday. Virtually all the ... fuels and is presently not in a position to cease their use. Fossil fuels generate huge amounts of power per unit at a time. These fuels are used to generate power for cars, heat for our homes and generate power to run many Industries....

• Word Count: 1059
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... drives about 10,000 a year uses 455 gallons of gas per year. Our vehicles together approximately use 30,000lbs of co2 a year for our cars alone. To save on the carbon usage for travel by both cars I decided that we could cut down the driving to one vehicle, and perhaps set up a car pool between me and other moms for my son ... ...

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... area of Massachusetts, Vermont, New Hampshire, Connecticut, and New Jersey combined. With population growth, another thing grows and that's pollution. The more people there are then the more use of cars and the more carbon dioxide there is being exhaled into the air and the more factories there are being built to give all these people jobs and well, you get ... already too late. Pollution doesn't just add up to statistics either; it creates problems in the environment. Air pollution has created a problem for humans called global warming. In North America, cars release most of the gasses...

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... and chemist have found alternative sources to petroleum to serve as a replacement to petrochemicals and energy sources Sixty percent of petroleum usage went towards transportation. Cars are the main consumers of such amounts. This is because cars need oil and oil is a product of petroleum. This problem can be solved by extracting a substance called kerogen from oil shale, which is a form of ... ...

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... are being developed and deployed. The first step towards implementing energy alternatives is efficiency. Technology exists for electric trains, high gas mileage, efficient light bulbs, and efficient appliances, even electric cars such as the Hyundai Solara are hitting the market as of 2000. The U.S. is moving towards efficiency, and the oil shortage has caught the public's eye. Efficiency is a primary concern ... oil each year (Coastal 113). Any regulation in the transportation sector creates massive reductions in energy consumption, amounting to less oil consumption. Massive research h...

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... dioxide is the most prominent greenhouse gas. It acts like a blanket in the earth's atmosphere allowing heat to enter but little to escape. The main producers of carbon dioxide are cars, power plants and industries that use fossil fuels (EPA, Emissions). The earth's temperatures change naturally, yet in the past 50 years a measurable amount of warming has occurred. In fact, 2002 ... electricity, could cut pollution by nearly a third; Honda and Toyota have hybrid models on the market today, and many other automobile manufacturers have started their own programs to produce these cars. The...

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... utilities emitting CO2 into the atmosphere, the worlds automobiles emit plenty of CO2 themselves. "The combustion of fossil fuel, including gasoline, [which cars burn], is an additional source of- carbon dioxide (Bernard 72). There is an unbelievable amount of cars around the world, in fact there are too many that emit an excess amount of carbon dioxide. Although "[c] arbon dioxide is perhaps ... ...

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... danger and are depleting more and more everyday. Additionally, fossil fuels lead to extreme pollution, while tidal energy is much cleaner. Wave power is better for stopping the pollution from cars, it uses naturally occurring processes. It is "greener" and sustainable. While tidal power is a new and emerging, fossil fuels have been in use for hundreds of years. While the both ... ...

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... enough to support life, human use fossil fuels which is the main source of access greenhouse gasses. The environmental problems today are results from our fossil-fuel dependence. By driving cars, using electricity for different kind of machines or heating our homes with oil or natural gas, those are the reasons that release carbon dioxide and other heat trapping gases into ... ...

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... supply. There is still the problem of Denmark meeting its 2050 goal. The hardest part to this is decreasing the use of fossil fuels in transportation by switching to electric cars. Mr. Peterson shows is hope for the future when he says says "We need longer range and lower prices before this becomes a good option...technology needs to save us ... ...

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Imagine a world where there are no more fossil fuels; everything we take for granted - gas for our cars, electronics and heat for our homes - wouldn't exist. It would be as if we'd tumbled backwards into the Dark Ages. Finding alternative energy sources is essential, for if we don't, ... ...

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... are estimated, and the types of activities that cause emissions. In the last few hundred years, the additional release of carbon dioxide was by human activities. Energy burned to run cars and trucks, heat homes and business, and power factories is responsible for about 80% of society's carbon dioxide emissions, about 25% of U.S. methane emissions, and about 20% of global nitrous ... ...

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... think hundreds of such goods that were not used before and we are using them today in order to satisfy our wants and to meet our needs: from walkman to cars, from computers to bank machines. Of course, there are thousands of businesses and manufacturers that supply all these products/services and they all require energy to work. Can we imagine ... ...

• Word Count: 1950
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