Tunick's at it again

Hundreds of naked people formed a "living sculpture" on Switzerland's Aletsch glacier Saturday, hoping to raise awareness about climate change.

The photo shoot by Spencer Tunick, the New York artist famous for his pictures of nude gatherings in public settings worldwide, was designed to draw attention to the effects of global warming on Switzerland's shrinking glaciers.

"The melting of the glaciers is an indisputable sign of global climate change," said the environmental group Greenpeace, which co-organized the event.

It said most Swiss glaciers will disappear by 2080 if global warming continues at its current pace.

The event, which followed Tunick's previous shoots in London, Mexico City and Amsterdam, was designed to minimize any impact on the environment, Greenpeace said.

Temperatures during the shoot hovered around 50 degrees.