Artificial Photosynthesis: Twice as Efficient as the Real Thing

The artificial leaf is poised to be one of the next big breakthroughs in energy. If we can learn to mimic the biological mechanism by which plants convert solar energy into hydrogen, the sky is the limit. Millions of years of evolution have already proved the worth of photosynthesis, even if it's not all that… » 12/16/11 8:00am 12/16/11 8:00am