Summary: On today's Planet Money: Adam Davidson chats with the intrepid David Kestenbaum about both the theatrics and real policy debates going on at the current climate conference in Copenhagen. First, meet a biker who powers up music with his feet for outdoor dance sessions and, with the late Friday announcement that a global agreement of some sort has been reached at the conference, listen to the potential promises and pitfalls of a key aspect of the deal — a "cap and trade" carbon reduction plan.
