Paying workers a just wage has been "one of the most consistent and central themes of Catholic social teaching" for more than a century, said Cardinal Peter Turkson.
Pontifical Council for Justice and Peace
"There is no 'just war,'" the some 80 participants of the conference state in an appeal they released April 14.
The conference will bring some 80 experts to Rome with the aim of developing a new moral framework that rejects ethical justifications for war.
Bishop Fridolin Ambongo Besungu said the changes to the Vatican seem "like a change not only in attitude here, but a new anthropology for the way of living our faith."
Highlighting the life, suffering and enduring hope of St. Josephine Bakhita, a Sudanese slave, Washington Auxiliary Bishop Martin Holley called for reflection and action to combat modern-day slavery during his homily on the first International Day of Prayer and Awareness Against Human Trafficking on Sunday.
The Vatican is helping Catholic dioceses and agencies step up the fight against Ebola and is urging other donors to help.
The Pontifical Council for Justice and Peace announced Wednesday that the Holy See would be making a "financial contribution" to support church-sponsored assistance to those affected by the Ebola outbreak. Vatican Radio reported the sum would be $3.5 million.
A new kind of ghetto needs the church's presence and people's solidarity: the "digital slum" where cyberbullying and online pornography and abuse run rampant.
Human trafficking destroys the lives of millions of children, women and men each year, making it a real threat to peace, the Vatican said as it announced Pope Francis' 2015 World Peace Day message would focus on the phenomenon.
"Slaves no more, but brothers and sisters" will be the theme for the Jan. 1, 2015, commemoration and for the message Pope Francis will write for the occasion, according to the Pontifical Council for Justice and Peace.