Nature has always suffered from people. Unfortunately, the problem of environmental pollution became a critical issue within recent years. With the appearance of light and heavy industries, overcrowded metropolitan cities, global population became suffer from a number of different diseases caused by pollution. Thus, since 1950s environmental damage tops the global problems list.
Nowadays, humanity can feel the shortage of fresh air, drinking water and fertile land. Thus, polluted air causes different respiratory track diseases; polluted water extinguishes marine life, in particular, sea mammals, fish and seabirds; polluted soil cannot give safe harvest. Besides, natural beauty is dying ...