Copper will continue to contribute to society’s sustainable development due to geological availability and industry innovation. The future availability of minerals is based on the concept of reserves and resources. Reserves are deposits that have been discovered, evaluated and assessed to be profitable. Resources are far larger and include reserves, discovered and potentially profitable deposits and undiscovered deposits predicted based on preliminary geological surveys. Copper is naturally present in the Earth’s crust.
Copper reserves amount to 690 million tonnes (US Geological Survey [USGS], 2014), and copper resources are estimated to exceed 5,000 million tonnes (USGS, 2014). This number does not include the vast copper deposits found in deep-sea nodules and submarine massive sulfides. Current and future exploration opportunities will increase both reserves and known resources. According to USGS data, since 1950 there has always been, on average, 40 years of copper reserves and over 200 years of resources left.
Innovation in Copper Recycling and Mining
Copper recycling plays an important role in copper availability since today’s primary copper is tomorrow’s recycled material. During the last decade, about 35 percent of annual copper use came from recycled sources. Future innovative policies and technologies should continue to contribute to resource efficiency in mining “primary” copper and recycling “secondary” copper.
For more detailed information about copper recycling and mining, see our ICA briefing note on copper’s long-term availability and copper stocks and flows.