Pope Francis urged greater efforts to reform prison systems, address the root causes of crime and ensure acceptance and reintegration once a person completes his or her sentence.

Francis said that “to follow Jesus among the crucified” in today’s world involves many tasks.

During his Nov. 20-26 visit to Thailand and Japan, Pope Francis will deliver a message at the "hypocenter" or ground zero park in Nagasaki and will hold a meeting for peace later that day at the peace memorial in Hiroshima.

The pope's message was addressed to those attending a meeting of state parties to the Montreal Protocol on Substances that Deplete the Ozone Layer.

They had come together, he said, to “celebrate God’s faithfulness in our 50-year journey and also to celebrate our faithfulness to his call,” as well as to celebrate Father Arrupe and the 57 Jesuits who “sacrificed their lives in the struggle for justice and equality.”

The synod, which took place at the Vatican Oct. Oct. 6-27, addressed the challenges facing large dioceses with few resources to minister to Catholics in remote areas.