Pages could be written on the immense losses of productive soil that occur annually in almost every continent of the earth; on lethal air pollution episodes in major urban areas; on the worldwide distribution of toxic agents, such as radioactive isotopes and lead; on the chemicalization of man's immediate environment-- one might say his very dinner table—with pesticide residues and food additives. Pieced together like bits of a jigsaw puzzle, these affronts to the environment form a pattern of destruction that has no precedent in man's long history on earth.