Metal Minerals Scarcity and the Elements of Hope

If policy does not change, the ongoing growth in global consumption of metals will cause shortages, aggravate energy scarcity and obstruct the transition towards a sustainable economy.

For my analysis the collective work presented by ASPO-members and at TheOilDrum has proven to be an invaluable source of information. I would like to especially mention the work of Prof. Ugo Bardi, because he has inspired me to look further into the issue of metal minerals depletion.
Metals scarcity is becoming one of the most urgent global problems, comparable with energy scarcity which is its root cause.

The underlying problem is exponential growth of the world’s population and associated consumption of natural resources. Earlier this year, the IMF (within the context of the current global crisis) stated that a “healthy” world economy grows each year with 3% or more. Sustained growth of 3% per year means a doubling time every 24 years. Compare this with the average growth of China’s economy during the last 15 years and associated growth in metals consumption: 10% or more per year, meaning a doubling time of 7 years (or shorter). This is of course nothing less than a Ponzi Scheme.

I would like to lend a phrase from the peak oil community and apply it to mineral resources as well: it’s not the size of the well that matters but the size of the tap. About a quarter of the earth’s crust consists of silicon, yet we are already short (for years) on pure enough silicon to make high efficiency solar cells. Of course we can purify the less favourable sources of silicon, but this takes (lots of) energy.

The consequences of metals scarcity will be serious. Not only various established sectors like machining and the chemical industries will be affected. Especially the promising “new” sectors will be hit hard. For example there are no satisfactory substitutes available yet for essential and already scarce metals for efficient and mass-produced solar cells, permanent-magnet drives/generators (wind mills, hybrid cars, electric cars), catalysts, fuel cells, batteries and various electronic devices (telecommunication, displays/ touch screens/ plasma screens, micro-electronics).
Without a shift from scarce to less scarce metals, a large-scale transition towards a more sustainable economy doesn’t stand a chance. Moreover metals scarcity aggravates energy scarcity because the energy sector is one of the largest metals consumers. This applies to the whole chain from exploration, production, storage and distribution up to conversion into the desired forms of energy.

The Oil Drum: Europe