Deforestation&Biofuel taking crop space is bad hemp& microalgae dont take away from food,produce high yields, increase nutrients in soil& diet & dont need fertilsers, pesticides etc. Boeing doing good with algae in Safrica dor once,hemp needs making easier to grow!!!!!!

Agree microalgae are promising (but a little over-hyped). But where does hemp grow if not on arable land?

I wonder if hemp would be seen as such a wonder substance if hippies didn't smoke it?

'hemp' here refers to industrial cannabis which has no fun effects, but technically the term 'hemp' refers to the whole species which includes the fun one!

they use industrial cannabis for rope, clothing, paper.... but it doesn't get you high!

http://en.wikipedia.org/wiki/Hemp :)