Eco Catholic: Pope Francis told the mayors that they are important because they can make concrete changes and put pressure on leaders above them.
A good pastor always sees what people are going through, feels compassion and then nourishes them with God's Word, Pope Francis said.
The Vatican's final figures for 2014 showed a continued budget deficit on the part of the Roman Curia and nearly double the profits brought in by entities such as the Vatican Museums.
The United Nations is not "the devil," so a papal think tank is free to collaborate with the international body as well as people of any political persuasion, said Bishop Marcelo Sanchez Sorondo, chancellor of the Pontifical Academy of Sciences.
The church will continue to collaborate with the United Nations on any joint project that "does not go against the doctrine of the church," he said at a news conference July 15.
The Holy See welcomed Iran's historic nuclear deal and expressed hopes that more future breakthroughs be on the horizon on other issues.
Jesuit Fr. Federico Lombardi, Vatican spokesman, said that "the agreement on the Iranian nuclear program is viewed in a positive light by the Holy See."
The Vatican also indicted Jozef Wesolowski on charges of serious psychological distress and harm to adolescent sexual abuse victims and repeated use of online pornography.
Pope Francis last month attracted international attention with the release of his environmental encyclical, in which he described climate change as "a global problem with grave implications" that needs to be urgently addressed.
Particular attention was placed on the failings of political leaders and the importance of people changing their lifestyles, making sacrifices to help combat climate change.
The Vatican is calling on bishops globally to act on the pope's groundbreaking environmental encyclical, Cardinal Peter Turkson said in an interview.
Last week, bishops' conferences across the world were sent a message urging them to speak up about the message of the papal letter, which called for greater action on the environment, said Turkson, who is president of the Vatican's Pontifical Council for Justice and Peace.
Catholics, Protestants and Orthodox must pray together and work hand-in-hand helping the poor, Pope Francis told thousands of Catholic charismatics and members of other Christian communities.
If the devil "unites us in death, who are we to divide ourselves in life?" he said, adding that all Christians can and must pray together, as they have all received the same baptism and are striving to follow Christ.
A homecoming for the Argentine pope likely to draw attention to key challenges in the region.