Rubber is Critical, and Vulnerable
by Dan Crawford
World oil production is running flat out, leaving very little room for any errors. If a disruption were to occur a shortage would very likely follow. Probability theory states that the longer we go without a problem, the more likely it becomes. When a shortage does occur conservation measures will be needed.
The single largest consumer of conventional oil in the 30 rich nations of the OECD (Organization for Economic Co-Operation and Development) is the transportation sector. In 1973, this sector accounted for 42% of oil consumed, growing to a whopping 58% of consumption by 2004. Any attempts to conserve oil in a supply crisis will need to target this sector first. Historical records back up this point, as seen by the rationing measures taken during both World Wars and the 1970s energy crisis.
There are other types of supply disruptions that would have the same effect. One that is rarely mentioned is what would happen if there were to be a disruption in rubber supplies. Not only does rubber give vehicles their tires, it is also a key component in all essential vehicle systems. Rubber is used in the hoses, engine mounts, bushings and gaskets. While it is encouraging to note that rubber is one of the only materials used throughout the automotive industry that can be supplied from a renewable resource, it turns out there are some very significant problems to notice here.
The world's rubber needs are met through both natural and synthetic sources, each supplying nearly equal amounts. Synthetic rubber requires petrochemicals as a feedstock for its manufacture, using roughly 3.5 times more oil than what is required for a rubber tree plantation. This dependence on oil has led to a dramatic price increase in synthetic rubber over the last few years. Not surprisingly, this has fuelled an increased demand for natural rubber.
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