Hemp: So why on earth aren’t we using it?

So why on earth are we not using it . . . . ?
http://www.lightparty.com/Energy/Hemp5.html

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You have to wonder why we bother having Environmental Departments, (or government ministers responsible for matters environmental if it comes to that)
http://www.smh.com.au/environment/toxins-found-at-third-site-as-fracking-fears-build-20101118-17zfv.html

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SOS art . . . But will governments take note?
http://www.independent.co.uk/environment/people-planet-to-combine-for-global-climate-art-show-2137247.html

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Plenty of parallels for Australia here, so could someone please tell our pollies . . . ?
http://www.mg.co.za/article/2010-11-19-precious-natural-resource-may-soon-run-dry

Anne