Thought I'd do a post on a cool site that I just found called the Green Museum focused on environmental art. They say that environmental art is simply, "art that improves our relationship with the natural world". Andy Goldsworthy is one of the most famous environmental artists out there (the pic is one of his). His natural sculptures from leaves, ice, stones, branches are very recognisable and beautiful too. He is not a member of the Green Museum, but there are many more environmental artists on their site here, for you to browse.