The influence of man on nature. Positive and negative impact: examples

The most important task for all mankind is the preservation of the diversity of all organisms living on Earth. All species (vegetation, animals) are closely interrelated. Destruction of even one of them leads to the disappearance of other species interconnected with it.

The influence of man on the nature of the Earth

Since the moment when man invented tools and became more or less intelligent, his all-round influence on the nature of the planet began. The more a person developed, the more influence he exerted on the Earth's environment. How does a person affect nature? What is positive and what is negative?

Negative moments

There are pluses and minuses of man's influence on nature. To begin with, consider negative examples of the harmful effects of man on the environment :

1. Deforestation associated with the construction of highways and so on.
2. Soil pollution occurs in connection with the use of fertilizers and chemicals.
3. Reducing the number of populations due to the expansion of areas for the fields with the help of deforestation (animals, deprived of a normal habitat, die).
4. Destruction of plants and animals due to the complexity of their adaptation to a new life, greatly altered by man, or simply extermination by people.
5. Pollution of the atmosphere and water by various wastes of production and by people themselves. For example, in the Pacific there is a "dead zone", where a huge amount of garbage is floating.

Examples of human influence on the nature of the ocean and mountains, the state of fresh water

The change in nature under the influence of man is very significant. The flora and fauna of the Earth are badly affected, water resources are polluted.

As a rule, light garbage remains on the surface of the ocean. In this regard, access to air (oxygen) and light is hampered by the inhabitants of these territories. Numerous species of animals are trying to find new places for their dwelling, which, unfortunately, not everyone can.

Annually, ocean currents bring millions of tons of debris. This is a real disaster.

The negative impact is also the deforestation on the slopes of the mountains. They become naked, which contributes to the erosion, as a consequence, loosening of the soil. And this leads to devastating landslides.

Pollution occurs not only in the waters of the oceans, but also in fresh water. Every day thousands of cubic meters of sewage or industrial wastes enter the rivers.
And the groundwater is contaminated with pesticides, chemical fertilizers.

The terrible consequences of oil spills, mining

Just one oil drop leads to the unfitness of about 25 liters of water for drinking. But this is not the worst thing. A fairly thin film of oil covers the surface of a huge water area - about 20 m ^{2 of} water. This is disastrous for all living things. All organisms under such a film are doomed to a slow death, because it interferes with the access of oxygen to the water. This is also a direct influence of man on the nature of the Earth.

People extract minerals from the depths of the Earth, formed over several million years - oil, coal and so on. Such industrial production together with cars emit carbon dioxide into the atmosphere in huge quantities, which leads to a catastrophic decrease in the ozone layer of the atmosphere - the protector of the Earth's surface from the ultraviolet radiation carrying the death from the Sun.

Over the last 50 years, the air temperature on Earth has increased by only 0.6 degrees. But it is very much.

Such warming will lead to an increase in the temperature of the World Ocean, which will contribute to the melting of polar glaciers in the Arctic. Thus, the most global problem arises - the ecosystem of the Earth's poles is disrupted. Glaciers are the most important and voluminous sources of fresh fresh water.

The benefits of people

It should be noted that people also bring certain benefits, and considerable.

It is also necessary to note the influence of man on nature from this point of view. The positive is in the activities carried out by people to improve the ecology of the environment.

In many vast territories of the Earth, protected areas, sanctuaries and parks are organized in different countries - places where everything is preserved in its original form. This is the most reasonable influence of man on nature, positive. In such protected places people contribute to the preservation of the plant and animal life.

Thanks to their creation, many species of animals and plants have survived on Earth. Rare and already endangered species must be recorded in a man-made Red Book, which prohibits fishing and collection.

Also, people create artificial water channels and irrigation systems that help maintain and increase soil fertility.

On a large scale, measures are also taken to plant diverse vegetation.

The ways to solve emerging problems in nature

To solve problems, it is necessary and important first of all to actively influence a person on nature (positive).

In order to conserve mineral resources, it is necessary to improve the methods of their extraction (in the bowels of modern mining methods, 25% of metal ores, more than 50% of oil and about 40% of coal remain in the seams), use them only for their intended purpose.

To solve energy problems, alternative methods should be used: wind and solar energy, tidal energy.

As for biological resources (animals and plants), they should be used (extracted) in such a way that in nature there always remain individuals in quantities that contribute to the restoration of the previous population size.

It is also necessary to continue work on the organization of reserves and planting forests.

Carrying out all these measures to restore and improve the environment - the influence of man on nature is positive. All this is necessary for the welfare of oneself.

After all, the well-being of human life, as well as of all biological organisms, depends on the state of nature. Now the most important problem facing all humanity is the creation of a favorable state and stability of the environment of life.