Photosynthesis, the chemical reaction that enables almost all life on Earth, is extremely inefficient at capturing energy -- only around 1% of light energy that a plant absorbs is converted into chemical energy within the plant. Bioengineers propose a radical new method of food production that they call 'electro-agriculture.' The method essentially replaces photosynthesis with a solar-powered chemical reaction that more efficiently converts CO2 into an organic molecule that plants would be genetically engineered to 'eat.' The researchers estimate that if all food in the US were produced using electro-agriculture, it would reduce the amount of land needed for agriculture by 94%. The method could also be used to grow food in space.