ENERGIA

ENERGIES ALTERNATIVES

http://www20.gencat.cat/portal/site/icaen/menuitem.22da170691e506ffc644968bb0c0e1a0/?vgnextoid=9e98c74bfa6ec210VgnVCM1000008d0c1e0aRCRD&vgnextchannel=9e98c74bfa6ec210VgnVCM1000008d0c1e0aRCRD&vgnextfmt=default


Biomassa

http://www.tv3.cat/videos/3786490/Energies-alternatives-i-recursos-del-bosc-La-biomassa

Petites idees

http://blogs.elpais.com/africa-no-es-un-pais/2013/03/el-viento-soplo-diferente.html