Drivin' down the concrete beams
Lookin' around and it now seems
Mama Earth is nowhere, gone from your eyes
Hidden in the crust of man's scientific dreams
She is gone, look out mother

Natural man took her natural face
Made it a strange and alien place
You can't bear to look 'cause she ain't there
Our mother has been raped and left to die in disgrace
She is gone
[ Lyrics from: http://www.lyricsfreak.com/c/chicago/mother+lp+version_20962198.html ]