Saving the
Environment with Renewable Energy
In our quest for energy independence, we need to
be able to rely on a source of energy to provide us with all the
power to fulfill our energy needs.
Some sources of energy, like coal, oil, and
nuclear fuel, are all non-renewable sources of energy. That is to
say that they cannot be re-used over and over, and nature does not
keep on supplying more of that material (or if it does, it is a
very slow process which occurs only over the period of
millennia).
On the other hand, governments have been looking
at so called renewable energy over the past few decades to give
themselves true energy independence.
Renewable and
Non-Renewable
The main difference between non-renewable and
renewable energy is that the latter is for all intents and purposes
a limitless supply of fuel for empowering our energy needs.
You might ask how a fuel can be limitless, which
is a genuine concern for many people. The answer lies in the types
of fuels.
The main types of renewable energy are solar,
wind, hydroelectric, and geothermal energy.
Solar, as the name implies,
uses sunlight, directly converting that sunlight into electricity
by using panels of photovoltaic cells.
Wind energy uses wind to spin
turbines, and hydroelectric power uses the energy of rivers and
ultimately the Earth's water cycle to create electricity.
Lastly, geothermal energy uses
the Earth's heat reserves from its mantle layer to generate power.
Obviously, the sun isn't going to stop burning for billions of
years, and that enables the other forms of renewable energy
mentioned above.
On the other hand, non-renewable sources of
energy such as coal and oil are fairly inefficient in comparison,
and they are extremely bad for the environment, spewing forth all
types of air and sometimes even water pollution.
Even nuclear energy, which is a very clean form
of energy, leaves spent fuel rods which are very radioactive and
need to be disposed of miles beneath the surface of the ground and
as far away from any populated areas as possible. Not only that,
but non-renewable energy has a finite amount of fuel which will
eventually be depleted if we keep on using it.
The main advantages that non-renewable energy
(at least in the case of coal and oil) offered were that they were
cheaper and easier to extract from the Earth, but that is no longer
the case with advances in technology.
Now, renewable energy is in many cases cheaper
(especially as the power plants don't need refueled) and much
better for the environment.
Non-renewable energy will soon be phased out
completely in favor of renewable energy for the environmental perks
and efficiency that it offers.
Ultimately, this decision will help provide
every last person on the Earth with cheap, clean electricity, and
many scientists hope that it will usher in a new golden age for
mankind.
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