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Fuels from the ancient
Monday, June 2, 2008
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Hi, the boys are back to bring you...
FOSSIL FUEL! Haha. As promised from the post some time back!
Fossil Fuel They are fossil source fuels, that is, hydrocarbons found within the top layer of the Earth’s crust.
They range from volatile materials with low carbon:hydrogen ratios like methane, to liquid petroleum to non-volatile materials composed of almost pure carbon, like anthracite coal.
It was estimated by the Energy Information Administration that in 2005, 86% of primary energy production in the world came from burning fossil fuels.
However, fossil fuels are non-renewable resources because they take millions of years to form, and reserves are being depleted much faster than new ones are being formed.
The burning of fossil fuels produces around 21.3 billion tonnes (= 21.3 gigatons) of carbon dioxide per year and carbon dioxide is one of the greenhouse gases that enhances radiative forcing and contributes to global warming, causing the average surface temperature of the Earth to rise in response, which climate scientists agree will cause major adverse effects, such as rising sea levels, the increase in the frequency of natural disasters such as floods, draught, tornadoes, heat and cold waves.
So, here's the summary for the pros and cons of the usage of fossil fuels:
PROS 1. When it is being burned, it can produce a significant amount of energy as compared to the rest such as solar energy
CONS 1. It is non-renewable 2. As supplies diminishes, the price of fossil fuels will soar 3. It causes negative environmental impacts such as global warming (because of CO2)and acid rains 4. Harvesting, processing, and distributing fossil fuels can also create environmental concerns.
After typing a few posts on resources to generate energy, especially electricity, we have realised the benefits of renewable resources over non-renewable resources. Despite fossil fuel being highly efficient as compared to the rest, listen to Gaia, listen to the environment, what will they get from our actions? Lots and lots of money? Or more and more advanced Earth? Think about it, would you like to have a world that is filled with (natural) disasters, pollutions? Global Warming, along with other problems about the environment, is on the rise. Can we give a thought to Gaia? As the blog's welcome speech says, actions speak louder than words, do what you need to do to save Gaia.
love me; love me not | Do your part, be Green
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Remember, be nice with your words =D
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love me; love me not - Nan Hua High School - Secondary 2/4
Xien Dong - Ding Xuan - Hui Fang - Wan Ying
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Xien Dong and Wan Ying (Background of Main Page Only), with some help from Jeremy Teng in solving some bugs
