Currently, the world’s industries and transportation depend on fossil fuels. Unfortunately, the supply of fossil fuels is ultimately exhaustible, and the cost of gathering and processing fossil fuels is steadily increasing. Furthermore, the use of crude oil and gas has detrimental effects on our environment. This is why alternative sources of energy need to be utilized.
Benefits of using renewable sources of energy
As the name implies, renewable sources of energy will never run out, unlike fossil fuels. Many renewable sources of energy are also abundant and widely available, making them less costly than fossil fuels. Also, most renewable sources of energy produce little pollution. Waste products can also be a source of renewable energy, that's why using them actually reduces environmental pollution rather than adding to it.
Examples of renewable sources of energy
Renewable sources of energy currently in use derive from natural resources. The most common form of renewable energy in use is hydroelectricity, which comes from flowing water powering turbines to produce electrical energy. Sunlight can be converted to electricity, and solar energy is used in combination with other energy sources to provide electricity in certain areas worldwide. Wind power has long been in use for powering pumps and machinery, and is also now being used to generate electricity. Geothermal energy from natural heat sources underground is also used to provide electricity in some countries. As mentioned above, waste products can be converted into natural gas or biogas. Plants can likewise be a good source of biofuels.
Even better and more efficient ways of harnessing renewable sources of energy are being developed. These new technologies can result in a better environment for everyone, without having to drastically reduce our energy requirements.
