how much of the Iron, Steel, Cobalt, Nickel,Copper, Zinc, Tin, Lead,
Aluminum, Titanium, Manganese, Magnesium, Mercury, Vanadium,
Molybdenum, Tungsten, Silver, Gold, Platinum and glass is left in the
world if we keep have new building, new bridge etc... would we ever
run out of it? i just need a pretty general answer.
thank you very much!!!
Request for Question Clarification by
03 May 2006 11:01 PDT
Very interesting question.
Everything on your list except glass is a metal, and metals never
really get used up!
What I mean by that is, if you burn a gallon of oil, the oil is gone.
But if you put a pound of steel into a car, the steel stays with the
car until the car goes to the junkyard. At that point, the steel can
be recycled and reused, if so desired (in fact, steel is the most
widely recycled material in commerce).
Ditto with all other metals.
So, top of the head, I would say there's no real danger of these
things running out, since we can always reuse the standing stock.
For the present, it's often cheaper to mine new metals than to reuse
existing metals, but if the economics should change, then reuse will
start to pay for itself.
Glass is made out of sand, one of the most abundant materials on the
planet. Do you really think we'll run out of sand anytime soon?
What other sort of information are you looking for on this topic? Let
me know, and I'll see if I can get you a formal answer.