Leonardo DiCaprio appointed UN climate change representative
16 September 2014 Last updated at 23:08 BST
The Hollywood actor, Leonardo DiCaprio, has been appointed as a United Nations representative on climate change.
The UN secretary general Ban ki Moon said the actor's global stardom was the perfect match for the global challenge posed by climate change.
Mr DiCaprio's first duty in his new role will be to address the opening of the climate summit later this month in New York.