why do we need alternative fuel sources

Over the past two hundred years mankind has managed to do more damage to the environment through exorbitant use of fossil fuels. P We have caused acid rain which affects our fauna, trees, and water systems, and we have depleted the ozone layer. P Some cities have such as dangerous level of pollution in the atmosphere that on certain days people wear masks (usually people who have respiratory illnesses). P Incidents of respiratory related illnesses as well as non-smoking related lung cancer have increased with a strong correlation to the polluted atmosphere. The second concern is the need to find replacement fuels because the people on earth are rapidly using up resources that can not be replaced. P Trees are being harvested at a rapid rate leaving topic soil uncovered and causing run off. P The fuels like coal and oil are going to run out for future generations if something is not done. P The fuels were made by species that no longer exit after millions of years of time to decay and transfer. P Time is no longer on mankind's side. ThePlast primary concern is the condition of the ozone layer. P The earth has always had a protective layer in the atmosphere which protected the plant from too much heat entering or exiting our planet. P The carbon emissions have caused aPhole that is still increasing in the ozone area. P This has caused increased warming of our planet. The damage to our water system has been a result of pollution and the hole in the ozone layer. P The hole in the ozone has caused ice burgs to melt. P The ice burgs are a source of fresh water supply. PBecause of the damage of ice in the Polar Regions, species are losing their environment and dying off. Fossil fuel use hasPalso led to damage for species on the planet. P For example; the oil spills that have happened have caused the death of many different species, polluted the water system, and destroyed habitats.

P Air pollution also affects animals. It is vital for mankind to find cleaner fuel resources to replace fossil fuels because of the reasons that I listed. P Alternative energy possibilities include but are not limited to hydro energy produced by water movement, wind energy harnessed from moving air, thermal energy found in underground heated systems, and plant related fuels.
Gasoline and diesel are still fossil fuel kings of the fuel supply chain but alternative fuels are now swinging the scale more toward green. A growing number of people believe alternative fuels will have an expanded role in the cars and trucks of tomorrow. According to, such interest has been spurred by three important considerations: Alternative fuels generally have lower vehicle emissions that contribute to smog, air pollution and global warming With this in mind, we learn that the U. S. Energy Policy Act of 1992 identified eight alternative fuels of note Б some that are used, others considered more experimental in nature. Regardless, the fuels on this list have the potential to serve as full or partial alternatives to gasoline and diesel. Here is our Top Eight list of alternative fuels. 1. Ethanol An alcohol-based alternative fuel made by fermenting and distilling crops such as corn, barley or wheat. It can be blended with gasoline to increase octane levels and improve emissions quality. Positive : Materials are renewable. Negative : Ethanol subsidies have a negative impact on food prices and availability. 2. Natural Gas Natural gas is an alternative fuel that burns clean and is already widely available to people in many countries through utilities that provide natural gas to homes and businesses.

Positive : Cars and trucks with specially designed engines produce fewer harmful emissions than gasoline or diesel. Negative : Natural gas production creates methane, a greenhouse gas that is 21 times worse for global warming than CO2. 3. Electricity Electricity can be used as a transportation alternative fuel for battery-powered electric and fuel-cell vehicles. Battery powered electric vehicles store power in batteries that are recharged by plugging the vehicle into a standard electrical source. Fuel-cell vehicles run on electricity that is produced through an electrochemical reaction that occurs when hydrogen and oxygen are combined. Positive : Electricity for transportation is highly efficient, and we already have an extensive electricity network. In the case of fuel cells, they produce electricity without combustion or pollution. Negative : Much electricity is generated today from coal or natural gas, leaving a bad carbon footprint. (Nonetheless, when it comes to cars. ) 4. Hydrogen Hydrogen can be mixed with natural gas to create an alternative fuel for vehicles that use certain types of internal combustion engines. Hydrogen is also used in fuel-cell vehicles that run on electricity produced by the petrochemical reaction that occurs when hydrogen and oxygen are combined in the fuel Бstack. Б Positive : No bad emissions. Negative : Cost. And also the lack of fueling infrastructure and difficulty of putting it in place. 5. Propane PropaneБalso called liquefied petroleum gas or LPGБis a byproduct of natural gas processing and crude oil refining. Already widely used as a fuel for cooking and heating, propane is also a popular alternative fuel for vehicles. б Positive : Propane produces fewer emissions than gasoline, and there is also a highly developed infrastructure for propane transport, storage and distribution.

Negative : Natural gas production creates methane, a greenhouse gas that is 21 times worse for global warming than CO2. 6. Biodiesel Biodiesel is an alternative fuel based on vegetable oils or animal fats, even those recycled after restaurants have used them for cooking. Vehicle engines can be converted to burn biodiesel in its pure form, and biodiesel can also be blended with petroleum diesel and used in unmodified engines. Positive : Biodiesel is safe, biodegradable, reduces air pollutants associated with vehicle emissions, such as particulate matter, carbon monoxide and hydrocarbons. Negative : Limited production and distribution infrastructure. 7. Methanol Methanol, also known as wood alcohol, can be used as an alternative fuel in flexible fuel vehicles that are designed to run on M85, a blend of 85 percent methanol and 15 percent gasoline, but automakers are no longer manufacturing methanol-powered vehicles. Positive : Methanol could become an important alternative fuel in the future as a source of the hydrogen needed to power fuel-cell vehicles. Negative : Automakers are no longer manufacturing methanol-powered vehicles. 8. P-Series Fuels P-Series fuels are a blend of ethanol, natural gas liquids and methyltetrahydrofuran (MeTHF), a co-solvent derived from biomass. P-Series fuels are clear, high-octane alternative fuels that can be used in flexible fuel vehicles. Positive : P-Series fuels can be used alone or mixed with gasoline in any ratio by simply adding it to the tank. Negative : Manufacturers are not making flexible fuel vehicles. Photo:б Source: Tags:,

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