Considering the challenges humanity faces today, from total environmental destruction to the continuing threat of nuclear annihilation, could we really be facing the end of the world as we have known it this time? And, if we survive, will our future be utopian or dystopian? The author explores these issues, and then details the eschatological traditions of Judeo-Christianity, Islam, Hinduism, Buddhism, Zoroastrianism, Gnosticism, the Maya, and prophecies of the end in other ancient cultures.