Symposium Introduction

The main cause of air pollution - the burning of fossil fuels and metallurgical production. If in the XIX and beginning of the twentieth century, arriving in environment of the combustion products of coal and liquid fuel is almost completely assimilated into the Earth's vegetation, at the present time, the content combustion products is steadily increasing. From ovens, furnaces, exhaust pipes cars in the air gets a number of pollutants. Among them allocated sulfur dioxide - a poisonous gas, is easily soluble in water.

The concentration of sulfur dioxide in the atmosphere is particularly high in the vicinity smelters. It causes destruction of chlorophyll, hypoplasia pollen grains, drying and opadanie leaves and needles.

As a result of combustion of different fuels is emitted into the atmosphere annually about 20 billion tons of carbon dioxide. Anthropogenic emissions of carbon exceed the natural gas and now account for a large share of its number, violate the transparency of the atmosphere, and hence its thermal balance. Half the carbon dioxide formed during the combustion of fossil fuel is absorbed by the ocean and green plants, half remains in air. The content of carbon dioxide in the atmosphere gradually increases and for past 100 years has increased by more than 10%. Carbon dioxide prevents thermal radiation into space, making it a so-called "Greenhouse effect", ie increase in average atmospheric temperature at few degrees, which can cause melting of the glaciers of the polar regions, sea-level rise, changing its salinity, temperature and other adverse effects. Thus, changes in content carbon dioxide in the atmosphere has a considerable influence on the Earth's climate.