In the decade since Democrats failed to create a cap and trade on carbon, party leaders and environmentalists have tried to figure out a way to clean the American energy sector. Now, the discussion is centered around two options: taxing carbon, or creating a clean energy standard. Today, POLITICO’s Anthony Adragna and Zack Colman explain these approaches. Zack Colman is an energy reporter for POLITICO. Anthony Adragna is an energy reporter for POLITICO and host of POLITICO Energy. Carlos Prieto is a Politico podcast producer. Jenny Ament is the senior producer of POLITICO audio. Irene Noguchi is the executive producer of POLITICO audio.