. >> thomas rÜgen talks about an america that has 3 billion people. >> my name is wayne rauf.it is -- wayne rth. what will it take to make the sacrifices to save our planet? my basic metaphor for what we're doing to plan a is putting a stick in a hornet's nest. a look at the pale ale for maximum and that lasted a thousand years. when we were bombed in pearl harbor, we acted very quickly. we do not recognize that we're in a program right now. but it is spreading all of the planet and nothing is raising the consciousness of the common people to the degree to say that we have to do something. >> where is the sense of urgency? what will it take? will it take another hurricane katrina-would take another drought in the midwest where they have no food to eat? how many people in the united states will have to die before the united states political system recognizes and becomes a leader should quicken actually make some changes? >> one thing that steve schneider always emphasized to students is that if is worth thinking about the matter for which apply to climate change. coral harbour