Technion’s Professor Mark Talesnik empowers his students to change the world. Their first project was to build 62 sustainable biomass reactors for a Nepal village. They generate methane for energy, recycle waste into fertilizer rather pollute the water, and save using wood to produce harmful smoke.
http://www.youtube.com/watch?v=Hc7sktETJEs
http://www.focus.technion.ac.il/May10/studentsStory2.htm