This article is reprinted from Discover Magazine, Vol. 24, No. 5, 5 May 2003

In an industrial park in Philadelphia sits a new machine that can change almost anything into oil. Really. "This is a solution to three of the biggest problems facing mankind," says Brian Appel, chairman and CEO of Changing World Technologies, the company that built this pilot plant and has just completed its first industrial-size installation in Missouri. "This process can deal with the world's waste. It can supplement our dwindling supplies of oil. And it can slow down global warming." Pardon me, says a reporter, shivering in the frigid dawn, but that sounds too good to be true.