The Snowbowl resort in Arizona had to fight a long time to obtain the legal right to make artificial snow out of sewage. So it turned on the snow machines this season... and yellow snow sprayed out. The Snowbowl management insists the snow is yellow because of rusty residue in the snow-making equipment. Everyone else thinks it's yellow because of the sewage. [nytimes
Commenting is no longer available for this post.