By eHow Culture & Society Editor
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Shell Oil geologist Dr. Marion King Hubbert predicted that U.S. oil production would peak in the 1970s. Those old enough to recall the gas shortages of the 1970s know he was right. Hubbert also predicted that global oil supply would peak in 1995. Today, global oil reserves are harder to extract and of lower grade and insufficient volume to meet global demand, which has steep economic impacts for all. Read on to learn how to reduce dependence on fossil fuels.