Presented by John Maddox
Why do some animals behave strangely before earthquakes? Why do flames shoot out of the ground during earth tremors? How did the carbon we see at the surface of the earth come to be there? Professor Thomas Gold of Cornell University discusses his new theory that seeks to explain these phenomena and makes the prediction that the earth's crust may contain enough hydrocarbons to sustain the world's energy needs for the next million years.
Producer DAVID PATERSON