Introduction

Modem technology has given man many conveniences and the ability to explore the outer limits of knowledge. It has allowed us to travel to the moon and send probes into outer space. But this technology that has led us to uncover secrets of the universe has also brought into focus the severity of environmental pollution on earth. The Apollo astronauts emphasized the extent of this problem when viewing the earth from space. Although they initially called it the “blue planet,” these astronauts saw at closer range pollution on all areas of the earth, which led them to state that “man has fouled his nest and this must be corrected.”