There is a new book out, entitled "The Evangelical Universalist." Its premise appears to be that Christ will save everyone, and that he will do so through the preaching of the gospel. (link to review/author interview) While one can appreciate the softness of heart that would motivate such a conclusion, it is not a Scriptural conclusion.
That there is a hell, a place of eternal death and corruption, where the worm does not die, and the fire is not quenched is taught clearly in Scripture, from the very lips of Jesus (Mark 9:43-48, relying on Isaiah 66:24).
Moreover, Paul clearly states that those who do not obey the Gospel of our Lord Jesus Christ will be punished with “everlasting destruction” (ολεθρον αιωνιον) in 2 Thessalonians 1:9.
While we must preach the gospel without regard to how many God chooses to save, we may be touched in our empathy for our fellow sinners and spurred on to spread the gospel, by the fact that those who do not repent and believe will perish forever and by our knowledge that the means to their salvation is the preached Gospel of Christ.Therefore, we should call all men to repentance from sin and faith in the risen Lord, by whom alone there is victory over death.