Cities to Have 2 Billion People by 2050: Report

Warning of unprecedented shifts in population in urban areas of the Asia and Pacific – already home to 17 of

FBI Security: Preparing for the Pope

Pope Francis’ visit to three major metropolitan areas during his first visit to the United States presents special security challenges,

United Nations Secretary-General Ban Ki-moon has welcomed the Clean Power Plan formally unveiled Monday by President Barack Obama, saying it

Two United Nations agencies have released a series of new guidelines aimed at addressing the health risks posed by the

As he wrapped up a visit to Ireland Tuesday, the UN Secretary-General congratulated the country on its “fruitful and strong”

The UN Secretary-General Ban Ki-moon, in Russia for ‘Victory Day’ marking 70 years since the end of the Second World