\ȯl-tər-nət e-nər-jē\ noun
Energy fuelled in ways that do not use up the earth's natural resources or otherwise harm the environment (Oxford English Dictionary)
Alternative energy has been at the forefront of the global battle against environmental degradation. Concerns of global warming, rising oil costs, peak oil, and the over-expending of our earth's natural resources, among other things, have convinced people to turn to environmentally cleaner and safer energy sources, such as renewable energy.
In some parts of the globe, electricity is either scarce or non-existent; however, there are sources of energy, such as wind and solar, that are readily available.
Wind energy was primarily generated through wind mills, generally used in rural and agricultural areas. This ingenious conception of capturing the wind’s energy can date as far back as the 7th century.
Today, wind energy is being used extensively throughout the world mainly due to the countless advantages that it holds. Wind energy is renewable, meaning that it is naturally replenished; hence, it is ample and can be widely distributed. Environmentally, it is safe, reducing toxic gas emission and generating zero pollution. But, the most attractive advantage of them all is its cost. Simply put, wind energy is cheap, and it keeps getting cheaper. Wind energy may soon be the cheapest way to produce energy on a large scale. For solar energy, the biggest advantage, aside from the environmental standpoint, is the long-term savings.
Both wind and solar energy are permanent energy solutions. The wind will exist as long as the sun exists, which is approximately for another four billion years. As renewable energy is readily available around the globe, countries no longer need to be dependent on other sources of energy.