Wednesday, 9 April 2014

Introduction

1. Introduction


“A nation that can't control its energy sources can't control its future.”  
                                                                    ~ Barack Obama, The Audacity of Hope


Our chosen area of focus is the “depletion of fossil fuels and a search for alternative sources”. We have chosen this topic as the impact to us humans is now critical as well for our future generations to come. This project discusses why different types of energy are essential and why we must do everything in our power to safeguard them.


Energy is power derived from the utilisation of physical or chemical resources, especially to provide light and heat or to work machines. Energy is used to operate various things, for example like machines, robots, vehicles and other electrical appliances.


1.1 Role of energy


Energy plays an essential role in today’s society. Energy has many important uses. For example, it provides us with electricity and is a source of transport for fueling cars, planes, trains and other vehicles. Without energy, our world would be crippled. All our basic necessities such as even taking a bus, using the fan when it gets too hot, doing research on the internet would be impossible without energy. Conversely, if energy is being depleted through excessive usage, then our future will not be promising. Scientists predict that all our fossil fuels will run out within approximately 40 years. Conserving energy is therefore critical to any sustainable solution to our future.


The exponential rate at which fossil fuels is deteriorating in the world is a major cause of concern. According to this graph, you can see that the amount of energy usage increased significantly ever since the year 1971 to the year 2010. From this, we can infer  that as the world progresses, energy usages will increase significantly.



1.2 Types of Energy


There are basically two types of energy. Renewable energy and non-renewable energy.



1.2.1 Renewable energy
Renewable energy is energy that comes from resources which are naturally replenished. Some examples are tides, geothermal heat, solar power, wind, moving water such as rain, waves and tides. These forms of energy can be used to generate electricity, heat up water or  be used as motor fuels.




1.2.2 Non-renewable Energy


Non-renewable energy is energy derived from fossil fuels such as coal, crude oil and natural gas. This is mainly made up of carbon and were formed over 300 million years ago. This was commonly referred to as the ‘Carboniferous Period”.

No comments:

Post a Comment