Pope's Christmas message on 'wastefulness'
21 December 2013 Last updated at 08:29 GMT
Pope Francis has released a Christmas video message in an attempt to tackle the level of waste in society.
He used the work of the "cartoneros" - the Spanish name given to poor people around the world who pick through rubbish to find reusable goods - to highlight the scale of the problem.
Ian Booth reports.