polution
Uploaded by citrix on May 07, 2006
POLLUTION
~{!0~}Why is this happening?~{!1~} I say to my mind, ~{!0~}Why is the air so hot and so hard to breathe?~{!1~}, ~{!0~}Why are trees being cut down when they are a source of life?~{!1~}, ~{!0~}Why some species of animals are disappearing?~{!1~} There is only one answer to this question and maybe the most unpleasant for us to hear: man, whose main preoccupation should be the protection of his home, destroys the planet through his harmful actions.
Man has interfered too much in the normal course of nature. His actions, premeditated or accidental have caused a lot of damage to the environment. The result of all man~{!/~}s harmful doings is represented by the most dangerous enemy of this entire Earth, which is pollution.
According to the Thesaurus Dictionary pollution is ~{!0~}an undesirable state of the natural environment, being contaminated with harmful substances as a consequence of human activities~{!1~} (The Free Dictionary by Farlex, Thesaurus). To this definition it can also be added that the environmental pollution is ~{!0~}the addition of any substance or form of energy (e.g., heat, sound, and radioactivity) to the environment at a rate faster than the environment can accommodate it by dispersion, breakdown, recycling, or storage in some harmless form~{!1~} (Encyclopedia Britannica).
The natural components of the environment have begun to suffer more and more recently a change in their quality and thus, they became more and more polluted. The main role in all these changes has been played by no one else than man. He has built homes, roads and for this he had to cut down woods, he destroyed the grass. He polluted the waters and especially the air, primarily through his industrial activity.
Humanity continues to develop and technically advance in such a fast way that every day more pollutants are released into the ground, water and atmosphere; man~{!/~}s careless actions are thus menacing the planet~{!/~}s very survival. For a better understanding of the negative effects that man imposes on nature one should mention only some facts that do not need any further explanation, as they speak from themselves.
Here are just three examples that might surprise us: ~{!0~}If just 25% of U.S. families used 10 fewer plastic bags a month, we would save over 2.5 BILLION bags a year; Americans use 50 million...