The silver lining of government relaxation and decriminalization of marijuana is the comeback of industrial hemp. Our ancestors depended heavily on the wonders of hemp fibers for sail cloth, clothing and even paper. Hemp has been used throughout the ancient world continuing through to the 1940’s when the US government began their war on psycho active marijuana. One of the greatest modern marvels of this sustainable substance is the creation of a new form of concrete called hempcrete.
http://www.examiner.com/article/hempcrete-could-launch-a-green-building-revolution
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