Photosynthesis – turning the sun’s energy into food for plants – is the biological system that feeds the world. But despite its awesome power, the process is extremely inefficient. We can’t really blame plants for this because photosynthesis evolved for ancient earth’s conditions. What if we could improve on this fundamental, ancient process? One could imagine using solar energy and biology to make chemicals or liquid fuels in a far less-polluting way than today’s methods.…