Mystics and seers from Blessed Anna Maria Taigi to the children of Garabandal have all said a warning will be given to the world in our times in order that people will repent and amend their lives, it will include a correction of consciences, convicting the world of its sin. Failing that, a great chastisement would follow.
I'm not sure what all of that means precisely, and I no longer follow such prophecies very closely, although I ponder them from time to time. The predicted warning is supposed to be a supernatural event, yet it seems to me that we may be living through another sort of warning right now, since the Church, guided by the Holy Father and the bishops in communion with him, "are (the) authentic teachers, that is teachers endowed with the authority of Christ, who preach the faith to the people entrusted to them, the faith to be believed and put into practice." (CCC 2034) This truth has become very evident when we consider the teaching and example of the Pope. As Cardinal head of the CDF, and now as Pope Benedict XVI, the Holy Father has consistently offered the Church and the world, with great charity, a clear correction of conscience through his presentation of authoritative Catholic teaching on faith and morals, as well as by speaking to, and pointing out the great errors of our age.
It seems to me the fact that the Pope's teaching has met with such resistance and scorn throughout the Church and the world, is stunning evidence his teaching convicts the world of its sin, correcting consciences by the truth of the Gospel, marked by that sign of contradiction, the Cross, supernaturally illumined in the darkness that covers the earth.