At he suggestion of Dolf James, I've just finished watching the movie "Rivers and Tides," a documentary on the work of Andy Goldsworthy (and here), artist, scuptor, photographer, and environmentalist. It is a fascinating view of a remarkable man. Goldsworthy was the A. D. White Professor at Large at Cornell University for eight years, which peaked my interest (my Alma mater). His large environmental sculptures are made of completely natural materials and are fashioned by found objects as tools. Photography is used to record the various states of a piece, as it adapts to its surroundings, often floating down a river, washing out to sea, or melting in the sun. The ephemeral quality of the film and Goldsworthy's narrative makes this an extremely effective presentation. I enjoy hearing artists talk about their work and why they are compelled to create, especially if I can understand them. It's hard to believe that there are people who can create at this level. The link is to the 1st of a series of 9 videos snatched from the DVD. A worthwhile 90 minutes if you are into this kind of stuff.
Another great video of Goldsworthy's last lecture at Cornell: