ℙollution ☢

Pollution is a change in the environment . It creates damage to the environment and population . There are many types of pollution : of air , of water, and of land . Man harms the "Earth System" with gases that create the "Greenhouse effect " that raises the temperature , the "Melting ice" , the "global warming" , and causing many weather events ; hurricanes , floods etc... All of these came from the toxic substances we put into the environment. The pollution also causes damage to health . Currently there are equipment ( wind and solar ) that protect the environment . This phenomenon is present in large industrial cities , like China . The environmentalists want to reduce pollution , because according to some research in the future many cities will become deserts for the meteorological phenomena.