Energy experts have a theory: It won't be a fancy new technology straight out of a science fiction novel that will help us reduce our energy consumption. Rather it will be something simple, sleek, a mere re-design if you will. The concept that will slow down how much energy we eat? Energy efficiency. Some energy efficient products are already out there—CFL lightbulbs and Energy Star refrigerators. Others are in the pipeline. As part of The Takeaway's Power Trip energy series, John Hockenberry heads to Novato, California, where some wacky guys are using the human lung to create better air conditioners.