The environmental damage arising from the production of foods is not currently reflected in prices. If the consequential costs of the greenhouse gases emitted are determined and added to current food prices, animal products such as milk, cheese and especially meat would have to become far more expensive.
By borrowing nature's blueprints for photosynthesis, bioengineers have found a way to efficiently absorb and store large-scale, low-cost renewable energy from the sun - while sequestering atmospheric carbon dioxide to use later as a biofuel.