RT @AJEnglish: An environmentally-friendly building material using cannabis fibres offers real potential as a replacement for cement | http://t.co/oRkgfVAA
http://twitter.com/sharaff/status/234463236282531840 RT @AJEnglish: An environmentally-friendly building material using cannabis fibres offers real potential as a replacement for cement | http://t.co/oRkgfVAA