The combustion of fossil fuels releases much of the energy uselessly into the atmosphere. The products of combustion are very dangerous gases (sulfur dioxide) that pollute the air. Oil refining releases ammonia, various organic acids, sulfur oxide, hydrocarbon compounds in the atmosphere. Important to mention as air pollutants are supersonic aircraft which emit a lot of nitrous oxide, a motor vehicles releasing significant amounts of carbon dioxide, carbon monoxide and nitrogen oxides. In major cities and industrial centers health problem is the smoke, soot and smog. Measurements of the Central Bureau of Meteorology show that 60% of sulfur dioxide comes from neighboring, industrially developed countries. Air pollution is not a problem of a particular area because of the airflow and it pollutes all areas. Nitrogen and sulfur oxides from burning fossil fuels go up in the air and mixed with rain, which causes acid rain. One cause corrosion of metal and stone objects, changes the leaves, changing the composition of the soil, polluting rivers, streams, lakes and the entire ecosystem of aquatic habitats. Large air pollutants are chlorofluorocarbons (substances that are used in fridges and sprays). Released into the atmosphere, causing its heating. Because Freon in the stratosphere results ozone hole, because chlorofluorocarbons destroy ozone, which protects the Earth from the harsh ultraviolet rays. As the climate becomes warmer, the Earth's ecosystem is becoming drier, and thus more susceptible to fires. The man, who has contributed greatly to global warming, destruction of green habitats for account urban expansion, industrialization, agriculture and expansive steady increase in energy consumption for driving the car and home needs today therefore pay a high price.