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Good rationalization for less global trade


in this article:

http://www.theglobeandmail.com/blogs/jeff-rubins-smaller-world/get-ready-for-triple-digit-oil-again-soon/article1343977/

i like how rubin thinks wrt oil, however, there is no reason why tankers can't run on natural gas engines, they just haven't been up to now. however, the LNG tankers XOM designed to ship qatari LNG run their engines on nat gas.