Pope Francis’s environmental message brings thousands on to streets in Rome

Vatican officials to discuss climate change and environment with scientists and activists including Naomi Klein

Thousands of campaigners and religious leaders have marched through Rome, backing Pope Francis's uncompromising environmental message ahead of a Vatican conference on climate change, and urging world leaders to take action.

Holy See officials will this week discuss the environment with activists and scientists at a meeting at which Naomi Klein, a prominent social activist, will take centre stage alongside Cardinal Peter Turkson, one of the pontiff's most senior aides.