Treehugger: The sun is our most abundant and cleanest source of energy, so the faster we harness it, the sooner we'll be on our way to having a truly sustainable civilization. That's why it's so great to see solar power projects popping up all around the world, and this at an increasing rate, and with bigger and bigger projects. Chile is a good example of this new solar boom: The Centro de Energías Renovables (CER, or or Renewable Energy Center) reports that November of last year, more than 3.1 gigawatts of...