geen design

http://www.newscientist.com/article/dn19444-green-machine-why-our-walls-really-should-have-ears.html
http://www.newscientist.com/article/dn19492-green-machine-wind-farms-make-like-a-fish.htmlhttp://www.newscientist.com/article/dn19161-green-machine-a-new-push-for-pond-scum-power.html
http://www.newscientist.com/article/dn18885-green-machine-cementing-greener-construction.html
http://www.newscientist.com/article/dn18822-green-machine-cheaper-home-power-from-sunlight.html
http://www.newscientist.com/article/dn18790-green-machine-power-from-the-people.html
http://www.pavegensystems.com