Non-renewable energy is the designation given to a energy resource which, after being used, cannot be regenerated by human beings or by nature in a useful period.
Fossil fuels such as oil, coal and natural gas are examples of non-renewable energy because one day they will run out. Likewise, nuclear energy (uranium) is also a type of non-renewable energy. Uranium produces more efficient and cheaper energy than fossil fuels, however, its handling is more complicated, and the waste resulting from its use poses a greater threat to the human being.
In the current panorama of energy sources, non-renewable energies are the most used. Another feature of this type of energy is its potential for environmental pollution, as its use results in the release of carbon dioxide, and other toxic gases such as nitrogen oxide, sulfur and Hydrocarbons. These gases are responsible for the occurrence of acid rain that pollutes soil and water. Carbon dioxide released into the atmosphere, a consequence of the use of non-renewable resources, is one of the main causes of the greenhouse effect, one of the serious environmental problems of the days of today.
Advantages and disadvantages
Non-renewable energies have advantages and disadvantages, and there are more disadvantages than advantages.
Disadvantages:
- they are very polluting (for this reason they are considered a kind of dirty energy);
- run out quickly;
- they are spatially limited, originating from specific locations on Earth;
- extraction, treatment and transport costs are very high;
- in many cases, there is only profitability when reserves are large;
- cause serious environmental catastrophes.
Benefits:
- have a high energy efficiency;
- are easily transported;
- they can be used in a variety of ways;
- enhance the creation of many jobs.
