Al Gore is looking to leverage the success of his film, "An Inconvenient Truth," by cloning himself. Well, not really. He's training more than a thousand people to give the slideshow presentation on global warming he gives in the movie. Living on Earth's Jeff Young sat down with Al Gore to ask him about his efforts to change the climate of public opinion.

Host Jeff Young asks two environmental historians about the ecological landmarks of the past decade. Doug Brinkley, best-selling author and professor of history at Rice University is joined by Nancy Langston, environmental historian from the University of Wisconsin –Madison, who says “we've done a pretty good job of creating a nightmare decade."

Host Jeff Young looks at the next decade of our planet. Jared Diamond, author of "Collapse," says our “present consumption rates just can't be sustained.” But urban farmer Will Allen suggests that mounting food demands can be met by growing food everywhere – in vacant buildings, on rooftops, asphalt, and on concrete. And Camille Parmesan, biology professor at University of Texas-Austin, suggests that the survival of wildlife may depend on our willingness to transport creatures out of the path of climate disruption.

Host Jeff Young examines some of the changes humans will experience by 2020. Linguist David Harrison says the diversity of human expression is under threat. Indeed, “we are losing a language every two weeks.” But Erin McKean, the former editor of the Oxford American Dictionary, sees words evolving ever faster, meaning the dictionary, in book form, is bound to change. Architectural advisor Rachel Armstrong says new technologies will transform our homes into living, moving, climate- adapting structures.