Jim Carter, who plays Mr Carson in Downton Abbey, stars as a distressed Father Christmas in a Greenpeace ad about the effects of global warming at the North Pole. The agency that created the spot has declined to be named. The ad shows Santa saying in a video-diary entry that he may have to cancel Christmas because melting ice has made it impossible for him to run his operation and that his letters to world leaders have been ignored. Viewers are then directed to a website where they can sign a petition. The film was directed by Ed Morris through Rattling Stick.