Greenpeace divers show passers-by the Christmas fish

While Mr. and Mrs. Swiss are considering whether to serve salmon for the festive meal just before Christmas, Greenpeace is wading in with a campaign. On Tuesday, eight Greenpeace divers confronted passers-by at Paradeplatz and in Bahnhofstrasse with video footage of the world's overfished oceans. Sitting on chairs, the activists - dressed in outfits à la Steve Zissou from the Wes Anderson film "The Life Aquatic" - showed footage of caught tuna and huge quantities of bycatch on laptops. The environmentalists also distributed a flyer providing information about the threat to individual species and what consumers can do: Consume less fish, local fish and sustainably and fairly produced fish. "We want to make people think before they go Christmas shopping," says Yves Zenger, press spokesman for Greenpeace Switzerland.