I love this paragraph in another article:
"Essentially, GTL is a modified version of a technique for turning coal into gasoline. The technique, called the Fischer-Tropsch process, was discovered in Europe in the 1920s. But instead of starting with coal, the GTL process begins with synthetic gas created in an industrial plant. The synthetic gas derives from natural gas--which is far cleaner than coal--and other materials.
"You can drink it," one Shell executive said. "You won't feel great, but you won't die.""