Humans have become so dependent on electricity; society's evolution to a great extent has been based on it. Without computers, lights, most methods of transportation and communication, the last hundred years of progress could be set back. Thus electricity could easily be considered man's greatest discovery, it is also generated in such a way that is seriously damaging to the environment. <Tab/>Oddly enough some of the most commonly used, non-renewable …showed first 75 words of 1634 total…

…showed last 75 words of 1634 total…be the cause of some of our greatest threats. "electricity." The Columbia Electronic Encyclopedia. © 1994, 2000, 2001, 2002, 2003, 2004 on Infoplease. © 2000-2004 Pearson Education, publishing as Infoplease. 08 Dec. 2004 <http://www.infoplease.com/ce6/sci/A0816983.html>. "energy, sources of." The Columbia Electronic Encyclopedia. © 1994, 2000, 2001, 2002, 2003, 2004 on Infoplease. © 2000-2004 Pearson Education, publishing as Infoplease. 08 Dec. 2004 <http://www.infoplease.com/ce6/sci/A0817342.html>.