Pope Francis says failure of climate summit would be catastrophic

Pope meets Muslim and other religious leaders in Nairobi to call for success at the Paris summit and for greater environmental protections in Africa

World leaders must reach a historic agreement to fight climate change and poverty at coming talks in Paris, facing the stark choice to either "improve or destroy the environment", Pope Francis said in Africa on Thursday.

Francis chose his first visit to the world's poorest continent to issue a clarion call for the success of the two-week summit, known as COP21, that starts on Monday in the French capital still reeling from attacks that killed 130 people and were claimed by Islamic State.