In spite of the string of magazine covers announcing the contrary, we all know that ten simple things will not save the earth. There are, rather, three thousand impossible things that all of us must do, and changing our light bulbs, while necessary, is the barest beginning. We are being called upon to act against a prevailing culture, to undermine our own entrenched tendency to accumulate and to consume, and to refuse to define our individuality by our presumed ability to do whatever we want.