"There are six trillion cigarettes smoked every year worldwide. This is enough to make a continuous chain from the Earth to the Sun and back with enough left over for several round trips to Mars," argues Robert Proctor, Professor of the History of Science at Stanford University.
This also translates to 360 million miles of cigarettes depositing 60,000 metric tons of soot, cyanide and radioactive polonium into the lungs of smokers.
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