California’s cap and trade program creates a market place to buy and sell the rights to pollute. The system sounds simple, but there are some complex rules that must be followed. San Francisco Public Press have taken it upon themselves to break it all down and simplify what cap and trade means and how it really works. And what better way to simplify a complex system than turn it into a board game? Public Press executive director Michael Stoll and reporter and illustrator Anna Vignet joined KALW's Hana Baba to teach her the rules of the California Cap and Trade game.