![The Discovery Files show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/014/590/small/the-discovery-files.jpg)
Summary: Researchers developed a record-breaking methane storage system using corncob waste to create carbon "sponges" capable of storing natural gas at an unprecedented density. This breakthrough from Kansas City, Mo., is a significant step forward in the nationwide effort to enable automobiles to run on methane -- a cleaner-burning and domestically-produced alternative to gasoline.