Thinking of environmental artists...Were we? Yes. Snow and ice. That's environmental stuff. So's grass, leaves, pebbles, sticks...you name it. Well, the father and most brilliant exponent of environmental sculpture is the UK's own Andy Goldsworthy. He's also an excellent photographer and needs to be, because of the ephemeral nature of what he creates. Sorry, Horse Serpent, but Andy's North Pole has you beat by a long way, both artistically and photographically. I can't find Andy's website - if he has one - so the title link takes you to his Artcyclopedia entry, which is as good a starting point as any for discovering his art.