The energy is a natural resource that can be exploited industrially from the application of technology and various associated resources. The concept also allows naming the ability to set or transform something.
Renewable, for its part, is what can be renewed. The verb renew is linked to replacing something, putting it back, transforming or restoring something that had been interrupted.
The notion of renewable energy refers to the type of energy that can be obtained from virtually inexhaustible natural sources, since they contain an immense amount of energy or can be regenerated naturally.
The wind energy, the solar energy and geothermal energy are examples of non - polluting renewable energy (green energy), because use is a minimal environmental footprint. The energies obtained from biomass, on the other hand, are polluting renewable energies.
Non- renewable energies are those whose source cannot be generated again. That is, what is spent cannot be replaced. Fossil fuels, such as oil, coal, or natural gas, are non-renewable energies.
The logic indicates that the human being should bet on renewable energy to guarantee their subsistence as a species. It is estimated that the Sun will supply renewable energy sources (through solar radiation, its incidence in rain, wind, etc.) for at least four billion years. The use of these energies, on the other hand, does not generate greenhouse gases or other polluting emissions.
Among the points against renewable energy, its irregularity appears (wind energy cannot be used when there are no winds, for example). On the other hand, although it is the most respectful way towards nature, the misuse of these energy sources can lead to disasters of varying degrees, since all of them generate an impact on the environment.
More negative effects of the misuse of hydropower are pandemic diseases such as dengue, yellow fever, and equistosomiasis (a parasitic disorder caused by a particular class of worms, which usually occurs mainly in developing countries with hot and cold climates. temperate), as well as floods that destroy natural landscapes and cities, with their consequent evacuations and deaths, and the increase of dissolved mineral salts in river channels.
Wind power can also have negative consequences for the environment if it is not used with a well-defined plan, or if it is tried to exploit in excess. At first glance, the placement of mills breaks with the beauty of any natural landscape. On the other hand, it is important to remember that they produce low-frequency noise that is very dangerous to the health of those who live in their vicinity; its consequences in humans include sleep disturbance and pulse irregularity.
It is worth mentioning that a large part of these sounds are below the limit of our auditory perception, and yet they harm us. Finally, it should not be forgotten that windmills represent a danger for certain species of birds if they do not detect them and get hurt with their blades. Among the energies that produce the least environmental impact are solar and wave power (waves).