Energy Facts:
or how do you grock a giga tonne?
 

Definitions

Giga = 109or 1,000,000,000
Tera = 1012 or 1,000,000,000,000
kg. = kilogram = 2.20 pounds
tonne or metric tonne is 1,000 kilograms or 2,205 lb. or 1.10 tons
mmt = million metric tonnes