Pope Francis

Pope Francis will this week call for changes in lifestyles and energy consumption to avert the “unprecedented destruction of the ecosystem” before the end of this century, according to a leaked draft of a papal encyclical. In a document released by an Italian magazine on Monday, the pontiff will warn that failure to act would have “grave consequences for all of us.”

Francis also called for a new global political authority tasked with “tackling…the reduction of pollution and the development of poor countries and regions.” His appeal echoed that of his predecessor, pope Benedict XVI, who in a 2009 encyclical proposed a kind of super-UN to deal with the world’s economic problems and injustices.

According to the lengthy draft, which was obtained and published by L’Espresso magazine, the Argentinean pope will align himself with the environmental movement and its objectives. While accepting that there may be some natural causes of global warming, the pope will also state that climate change is mostly a man-made problem.