"Wind Lens": Big Boost to Windpower

Japanese engineers discover a simple lensing rim affixed to the rotor assembly can double windpower output. (ref) With that kind of efficiency in windpower, and similar advances in efficiency and cost in solar, we could be sustainable and self-sufficient in energy in the US, if we set our minds to it. And we've just begun- there's still cold fusion (NASA is doing it now), and my favorite, hamster power.