Natural Gas Is Just as Bad as Coal

France recently became the first country to ban short flights between cities that are connected by a rail trip of less than two and a half hours. Ben Adler: Most people probably think, Oh, so there is a better way. We don't use as much coal, we just use natural gas. But liquid liquefying and then regastifying this natural gas actually makes it just as dirty as some of the dirtiest carbon dioxide emitting fuels in the world says Ben Adler.