President Obama has indicated that passing climate change legislation is one of the top priorities of his presidency. By 2050, he wants to reduce the carbon dioxide we put into the atmosphere by 80 percent. Similarly, leaders of the 111th Congress have indicated they want to introduce and pass a climate bill that drastically limits carbon pollution. More and more business leaders are expressing their support for legislative action on climate. So what will a climate bill look like? The devil, as they say, will be in the details.