Becuase petrochemicals are one of the cornerstone of the current culture in North America and Europe. The most obvious and easily identifiable forms of these are gasoline and diesel fuel, and heating oil. When the other cornerstones (liquidity, low cost food, and liberties) are all uncertain, TEOTWAWAKI looms in the eyes of many.
Simple enough.
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-IronRaven
When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.