Revision with unchanged content. There is nothing more critical than developing the means to positively address our socio-environmental crisis. Bill McKibben, environmental leader and author of The End of Nature, recently called to artists to engage the imagination and help bring the environmental crisis to the heart of the American people. Heinlein responds to McKibben’s call in Green Theatre by demonstrating the unique power theatrical performance holds in stimulating the imagination, engaging innate processes of human identification with the natural world, altering personal mores, and ultimately, in positively altering our socio-environmental behaviors. Green Theatre will hold fresh appeal to all artists, theatre and otherwise, who ponder the socio-educational value of live performance. Heinlein’s exploration will also benefit environmentalists, biologists, sociologists, and all those seeking additional capabilities to address the environmental crisis.