Here is the state of the 2006-2007 mineral resources reserve years for some metals:
Source: next book of Pierre Langlois "Drive without petrol"
These figures need to be qualified since, unlike consumed oil which is "lost", metals can be recycled to a certain extent ... and be looped back as a resource.
Now recycling has its limits too. If someone has specific information above, it would interest me! For example: when I buy 1 kg of aluminum or steel, what is the% recycled.
Here is the excerpt from the text from the book (which will be released early 2009 in Europe) that accompanies this graph.
Pierre Langlois wrote:"Now, even though we've focused a lot on the technologies in this book, the fact remains that it's not very wise to constantly move a 1 500 kg vehicle to carry a person of 75 kg.
It is not only the energy expenditure of the vehicles that must be considered. We will also have to be very vigilant with regard to the consumption of raw materials. Figure E.1 shows the full extent of the problem, presenting the number of years of reserves (before depletion of resources) for different natural resources, assuming that geological 2006 (see the note below). In this figure, the recycling of metals is taken into account since their mining production is considered. And here, we must not forget that our consumption is growing strongly because of emerging countries like China and India entering an intense industrial era. Also, if nothing is done to correct the shot, the years of reserve will be less numerous than those of the figure E.1! Although we may want to introduce rigorous recycling programs, the percentage of recovery will not be 100%. It will therefore be necessary that the vehicles we manufacture are fewer, smaller (taking into account the climate) and last longer.
In the face of this finding on global resources, the author wishes to reaffirm his conviction that a real sustainable development of road transport requires a very important investment in public transport, which our governments have the duty to improve, to attract a larger clientele High-speed intercity monorails will have to be developed quickly, as well as electric city buses with bottle-feeding. Car pooling and electric community cars, such as the MIT City Car (figure E.2), are other very important elements to help us eliminate our dependence on oil while reducing our consumption of raw materials. Cycling and walking complete all these environmentally responsible means.
To develop the E.1 graph, the author used statistics from the US Geological Survey, in particular the Mineral Commodity Summaries ( http://minerals.usgs.gov/minerals/pubs/commodity/myb ) for metals, to the BP Statistical Review report of World Energy June 2008 (see www.bp.com) for petroleum and natural gas, and, for uranium, to an article by Paul Mobbs entitled Uranium Supply and the Nuclear Option, published in the Oxford Energy Forum, the quarterly journal of the Oxford Institute for Energy Studies, number 61, May 2005 (see www.fraw.org.uk/mei). For aluminum reserves, they are based on bauxite reserves, the only ore from which aluminum can be produced economically. Clays also contain a lot of aluminum but we do not know how to extract it effectively. For oil and natural gas, the reserves provided by BP are proved reserves, including for oil, the Canadian oil sands. For metal reserves, we considered what the USGS calls Reserve Base, which the organization defines as follows:
"Reserve Base.That part of an identified resource that meets the requirements of the minimum physical and chemical criteria related to current mining and production practices, including those for grade, quality, thickness, and depth. The reserve is the in-place shown (measured plus indicated) resource from which reserves are estimated. It can encompass those parts of the world that have a reasonable potential for becoming economically more efficient than others. The reserve base comprises those resources which are currently economic (reserves), marginally economic (marginal reserves), and some of those which are currently subeconomic (subeconomic resources) ".
"Basic reserves. That portion of the identified resource that meets specified minimum physical and chemical criteria for current mining and operational practices, including those for grade, grade, thickness, and depth. Basic reserves are the proven on-site resource (measured and manifest) from which reserves are deduced. They may include those parts of the resources that have a reasonable potential to become economically available within planable horizons, beyond those that presuppose proven technologies and current economic criteria. Basic reserves include resources that are currently economically profitable (reserves), marginally economic (marginal reserves), and some of those resources that are currently below breakeven (sub-economic resources) "(free translation by the author). »»
ps: Pierre L. is also the author of https://www.econologie.com/forums/synthese-r ... t3797.html