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Reduction of environmental pollution is very expensive, but is nevertheless very important for the future of life on Earth. Therefore, any action to protect wildlife should be taken by all countries and international organizations. This means that the cost of living life on our planet will have to bear all of its inhabitants. Industry and agriculture, as a result of technological development, producing more hazardous waste such as garbage, domestic sewage, and municipal and industrial. Very negative impact on the environment are also fertilizers and chemical plant protection products. All of these substances contaminate our soil, water and air. The level of contamination of certain areas is very high. In nature, formed of debris and in a natural manner. For example, you can specify here the active volcanoes, which throw into the atmosphere huge amounts of dust and toxic gases, including sulfur dioxide. The source of contamination are also forest fires, which led to emit very large quantities of carbon dioxide. Nowadays, however, the vast majority of people produce contamination. This is particularly evident in the cities, which trap the smog, are full of smoking chimneys and automotive exhaust. Smoke is a mixture of various chemical compounds, which is the most harmful sulfur dioxide. Its toxicity is significantly increased in bright sunlight, because sunlight initiates a series of chemical reactions that cause this effect. Consequently, the result creates smog filling the ground. This type of characteristic smog, causing watery eyes and an unpleasant odor is often in arrears over London. This city has a lot of houses and most of them are heated with coal stoves, which emit large quantities of smoke lying over the dwellings. Smog has become in 1952 the cause of unhappiness, because at Christmas in London, died about 4000 people over the state average mortality. The situation improved only by statute issued by the British Parliament, which forbade the use of fuel secreting large amounts of smoke. Within Europe there is the smog in the Ruhr, in the northern, industrialized areas in the Czech Republic and in Upper Silesia. As a result of poisoning the atmosphere in these areas there has been a higher incidence of bronchitis and asthma. The local authorities of cities such as Krakow, decide to plant systems that monitor environmental contamination. In this way, measured by the CO that is rock, sulfur dioxide, nitrogen oxides and heavy metals. Toxic gases produced mainly by industrial plants have a very devastating impact on the environment. This applies particularly to carbon monoxide and sulfur dioxide. These substances are carried by wind over great distances. When you encounter along the way mountains, then undergo condensation and fall with the rain on the ground. These are called. acid rain. They became the cause of forest destruction in the areas of Polish and Czech Sudetes (Jizera Mountains). Shaken the equilibrium of the environment in the area. Toxic chemicals that cause environmental pollution, and to get into food chains, because they are absorbed by plants living on contaminated sites. Our food is also not free from such substances. It may be contaminated such as lead, which is eaten, even in trace amounts, can cause neurological damage in humans. Lead is emitted into the atmosphere mainly by motor vehicles, it is increasingly used as fuel to unleaded petrol. Once the lead was added to the paint, now it is substantially reduced. Very serious threat to our air is the relationship between gas - freon, which were used in aerosol cans, refrigerators and refrigerators. Freed freon enters the upper atmosphere, destroying the ozone layer and contributes to the creation of the so-called. ozone hole. Ozone protects us from harmful cosmic rays, so the shortage may cause many diseases such as skin cancer and even damage to genetic material. Currently, the use of CFCs is prohibited in the vast majority of countries. Probably the loss of the ozone layer will still grow, because in some places still use CFCs. Extremely dangerous, a new type of air pollution, very dangerous for living organisms, are dust and radioactive substances. The source of their formation are plants that process uranium ore and waste from nuclear reactors, nuclear reactors, particularly nuclear explosions, such as the Chernobyl explosion. A variety of air pollution is a problem with an international dimension, mainly because of the extent of the impact of radioactive substances and other harmful gases and dust. The problem of water pollution, particularly the seas and oceans, it looks like. Here you can give as an example of the disastrous state of the Baltic Sea. Coastal states do not care enough about its cleanliness. Entering the Baltic rivers carry an enormous amount of pollution. In many towns on the Polish coast swimming was banned for a long time, because sea water and beaches were contaminated to a degree that threatened human health. Similar situations occur in other parts of the world. A serious threat to marine tankers are failures. Can contaminate large areas of the sea by oil, and many hundreds of miles of beaches. This type of disasters cause heavy losses among the aquatic organisms, as well as on land. In 1980, following the tanker accident off the coast of Alaska, killed the majority of the population of sea birds, which managed to recover only after 7 years but not all species have managed to rebuild their populations. Hope for improving water quality could be example of England. For the Thames taken off gullies, in 1960 began activities aimed at rejuvenating the river and restore its natural state. Wysiki taken were successful, because now they live in the river, even salmon. A variety of atmospheric pollution in most penetrate into the soil such as acid rain. Contamination may occur as a result of excessive use of fertilizers and pesticides. The pace of destruction of the soil depends on soil fertility and its own protection. Acidification is responsible for the leaching of elements from the soil resources, such as calcium and magnesium, and eliminates many soil bacteria and thereby contribute to the inhibition of nitrification. A major problem soils in Poland is the presence of toxic aluminum ion, which occurs as a result of calcium deficiency in the substrate. Acidification increases the harm caused by heavy metals if they are present in the soil as if passing in a more toxic form of ion and busy. In such form, shall be collected by plants in much larger quantities than it would with less acidification. Introduced in the circulation of heavy metal ions can lead to groundwater contamination. Provision of soil containing natural ingredients magnesium and calcium help to improve her condition. About 50% of the arable land in Poland in urgent need of liming. Control of soil contamination is very difficult. Contaminate it mainly garbage, whether industrial houses from going to landfills. Also, sludge from wastewater treatment plants in the form of dried and pressed are stored on land. Very often they contain heavy metals and other poisonous substances that can easily penetrate into the soil. Many waste water and garbage decomposes without delivering massive damage. It is important to continuously monitor both the content of harmful substances in soil, but also in food, plants and animal organisms and humans. It happens that many years of landfill sites are lost, and in their place are created parks, green areas or even housing. However, when such decisions should be carefully checked whether the area had not been stored toxic waste that may release toxic substances and thus seriously harm your health. The more clean and healthier environment by the attempt to combat various types of organizations and groups of ecologists. They organize local campaigns, as well as global, such as the "Clean Up the World". Global need for environmental protection are, however, much more. It is important that people understand how important is the purity of nature that surrounds us and learn to care for her. All waste produced by humans when they are not properly secured and processed lead to air pollution, groundwater and soil. Therefore, it is very important to organize the economy wisely managing waste and thus minimize the loss in the environment. This can be achieved through: 1st recycling, or reuse of waste in the manufacture of new products (eg paper, plastics, metals and glass) 2nd composting, biological decomposition of organic waste, debris and sewage plant 3rd waste incineration, waste disposal such as households, through their burning