THE non-renewable energy (or dirty energy) are those produced from energy sources that are depleted in nature and, therefore, cause various environmental impacts.
This energy of organic origin (vegetable or animal origin) is limited and takes millions of years to form in nature.
Although they have large amounts, if depleted they cannot be easily regenerated, since their reserves are finite.
Examples of non-renewable energy sources
You fossil fuels they come from organic debris (animals and plants) that over the years have accumulated in the earth's crust. They are: oil, coal, shale, bitumen and natural gas.
The burning of fossil fuels releases several harmful gases that influence the increase in the greenhouse effect and global warming.
As a result we have environmental pollution as well as climate change. Although it is very polluting, in today's world it is the type of source most used for energy generation, especially oil.
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Nuclear or atomic energy is one of the most dangerous, as it can cause irreversible damage to the planet.
It comes from radioactive elements, being obtained from the fission of the atom of uranium and thorium. The cost of generating energy from nuclear power plants is relatively high and its system is very complex.
Although it is an advantageous energy option (high energy production), the risks of radioactive contamination are high, in addition to the thermal pollution it generates.
UnderstandOwhaté:Fission and Nuclear fusion.
Advantages and disadvantages
One of the main advantages of using non-renewable energy sources is that they are cheaper to implement, maintain and transport.
They are the best known and used in several countries, as they have a high energy efficiency compared to renewable energies.
In addition, its use has generated many jobs (especially in underdeveloped countries), contributing to the improvement of the economy and income distribution.
However, the use of non-renewable resources generates many pollutants and has a high impact. environmental, for example: global warming, acid rain, loss of biodiversity, as well as the depletion of sources.
The gases released by burning these fuels pollute the air and contribute to the increase in the greenhouse effect and global warming.
Many accidents caused by fossil and nuclear fuels (oil spill, power plant explosion nuclear, etc.) are extremely degrading, and can destroy an ecosystem or pollute an area for a long time. time.
On the other hand, there are renewable energy sources (clean energy) produced from resources that are renewed easily in nature, for example: solar, hydraulic, wind, geothermal, gravitational, hydrogen and biomass. It has been increasingly used for not causing environmental impact.
Understand more about energy:
- Renewable energy
- Types of energy
- Brazilian energy matrix