What do 7 billion people weigh?

Could their weight disbursement / distribution affect the wobble of earths axis? Can that many feet walking around be in fact "Tamping" or through minor vibrations through overall global mass movment be actually be causing shifts / changes in our enviroment? With this many people its almost like a mini... show more Could their weight disbursement / distribution affect the wobble of earths axis? Can that many feet walking around be in fact "Tamping" or through minor vibrations through overall global mass movment be actually be causing shifts / changes in our enviroment? With this many people its almost like a mini vibrator at a cement plant.
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