Pope Francis has warned that the world is “collapsing” due to climate change and could be “approaching a tipping point.” The pope has criticized global decision-makers for being ineffective and has also called out climate deniers. His strongly worded intervention was published in a major new update to his landmark 2015 document on the environment. . He described some of the damage caused by climate change as “already irreversible.” The pope has criticized those who “deny, conceal, silence or relativize the problem,” saying it is no longer possible to deny the human origin of climate change. Pope Francis has made climate change a key pillar of his papacy. His 2015 encyclical, the highest teaching document a pope can issue, signaled a shift for the Catholic Church. Since then, the pope has repeatedly called on politicians to take concrete steps to combat climate change. ( (Authors Aleem Maqbool and Harry Farley, Religion Editor, BBC News)