It's hard to imagine Valentine's Day without chocolate, but some scientists say that it's possible that chocolate could one day be in short supply.
What would the world be like without this decadent, delectable and divine dessert?
Watch the story today on Planet Green's "Focus Earth" with Bob Woodruff.
Historians say the Aztecs discovered chocolate more than 3,100 years ago and it was revered to the point of worship. Cocoa beans were linked to the feathered serpent god of agriculture and...Full Story