What is "Environmental Art"?  Does the artist have a stake in keeping the earth from being the Titanic of the planets? What is the role of the artist in society?

Can a few conspicuous solar homes, constructed wetlands, bike paths, recycling industries, wildlife habitat corridors, organic agricultural plots, and wind farms really be the key to saving the world? Isn’t a much greater transformation needed in global economic, political, and social institutions?
—Robert Thayer, Gray World, Green Heart: Technology, Nature, and the Sustainable Landscape (From the Harvard Design Magazine)

A Beautiful Mind