Pamela Anderson stripped naked to shoot PETA's psycho shower ad recently.
The scene depicts that meat and dairy farms drain half of the country's water supply.
The former 'Baywatch' star said that making a splash for the environment didn't just mean shorter showers, for one should also go vegan as producing 1 pound of beef took up as much water as about 6 months of shower, E! Online reported.
The Animal Rights Organisation's latest Psycho-inspired ad, which was photographed by by David LaChapelle, aims to motivate people to cut down long-showers, as well as meat-eating to save water.