The future is at stake: How many years of copper reserves are left to power our technology?

How many years of copper reserves are left to power our technology?

The race for "red gold": Countries that dominate copper reserves and the future of economic power.
World Copper Reserves and Resources
According to the USGS , known and economically mineable copper reserves worldwide are estimated at 890 million metric tons . Globally identified resources, which include both known reserves and deposits not yet viable, amount to approximately 2.1 billion tons .

Regarding undiscovered copper resources, the USGS has estimated that there are approximately 3.5 billion metric tons of copper…