Human impact on the environment is undeniable and obvious.We must be honest to admit that all the negative, which is observed in nature, there is a "thanks" to the man.People tend to solve all their problems, sometimes regardless of possible consequences for the environment.Many entrepreneurs bring to the front a single goal - to make a profit, leaving care about the environment later.
Given this consumer attitude towards natural resources, it is not surprising that mankind has come close to solving global environmental problems.It is from them will depend on the further problem or happy life on Earth.
Of course, in the early 20th century, when progress was just gaining its strength, much has been done to improve the quality of life, but there was a positive impact on the environment, a moot point.Drain swamps, roads, built the first hydroelectric power station.Engineers without computers and guided only by their calculations, building structures, taking into account the terrain and the condition of groundwater.Human impact on the environment assessed well before the start of the work, and measures were taken to reduce the risk of negative impacts on the environment.
big changes occurring continuously in agriculture, demonstrate the human impact on the environment.They often lead to large-scale and irreversible changes.For example, today in the agricultural fields plowed 10-12% of the Earth's land area.Their increase is estimated scientists will not be able to fully solve the food problem, but it can lead to a catastrophic depletion of soil.In some countries, the land plowed by 30-70%, and the intensive exploitation has led to environmental shifts.Do not take urgent measures, humanity runs the risk of leaving the dead are not suitable to what the land to their descendants.
Human impact on the environment in the agricultural field and associated with excessive and sometimes thoughtless use of fertilizers and herbicides.This leads not only to the fact that many grown products are dangerous for human consumption, but also to the negative impact on soil and groundwater.
Currently, promising agricultural institutions have come to the conclusion that to solve the problem of food shortages in the world by the need to launch high-yield breeds of animals and productive varieties of the same plant.
Previously, farmers are much less likely to allow themselves predatory attitude to the fertile layer of the earth.The positive impact on the environment was reflected in the fact that the soil was treated according to the rules of agricultural science, given rest and generously fertilized organic matter.People built the prospects for the future, realizing at the same priceless land.
Unfortunately, rapid 20th century is characterized by a waste of natural resources, which leads to an irresistible, periodic environmental catastrophes.
Humanity depletes the river and takes 13% of river flow, processed 100 billion annually. Tons of mineral natural resources, and energy consumption is doubled every 10 years.This can not but affect the surrounding nature.The fact that all will return on their own back, can not count, but that is not stopping entrepreneurs in pursuit of profit.Of course, the human impact on the environment must change and become more prudent.Otherwise, our descendants will hardly be grateful to us.
reasonable human impact on the environment would achieve balance and harmony in nature, and it is to this and seeks progressive mankind.Scientists create new high-tech treatment plant, using modern technologies without waste.Much work is being humane and experts on conservation of rare and endangered species.They are listed as endangered, they are not allowed to hunt.Of course, the best thing for them - it is to live in a natural environment, nature reserves and sanctuaries.