Really?
At the present rate of consumption, educated estimates of running out of resources goes like this;
indium(used in lcd monitors): 4-13 years
silver: 9-29 years
lead: 8-42 years
antimony(used in pharmaceutical drugs): 13-30 years
tin: 17-40 years
uranium: 19-59
zinc: 34-46 years
copper(wire, plumbing, pennies): 38-61 years
nickel: 57-90 years
Looking for is not finding.
Interesting. Where did you get those figures?
Again, when we're talking about national policy, anything less than 70 years has to be considered short-term. When it comes to national economic policy, 70 years passes in a flash.