All living creatures and a human need clear oxygen to breathe. Rapid growth of industry, transport, forest destruction have led to severe atmosphere pollution. Most factories and works throw away thousand tons of soot, ash and other substances out of their pipes. Grey clouds of harmful waste of enterprises and transport are hanging over the big cities. Smog falls on these cities from time to time. It endangers people's health and all the life on the Earth. Atmosphere pollution worries the humanity a lot recently. Special services have been created to monitor air purity. Works and factories are installing special cleaning equipment. Scientists are developing new cars that do not pollute the air: solar cars and electromobiles