The green revolution

Open_stomata._Coloured_scanning_electron_micrograph_(SEM)_of_open_stomata_on_the_surface_of_a_tobacco_leaf_(Nicotiana_tabacum)._Stomata_are_pores_found_on_the_leaf_surface_that_regulate_the_exchange_of_gases_between_the_leaf's_interior_and_the_atmosphere.

Stomach openings in a tobacco leaf viewed with an electron microscope.
© Science Photo Library/Dr Jeremy Burgess

Plants convert light into energy through photosynthesis. Researchers want to imitate this – and even outperform nature in terms of efficiency. That would be the basis for a radically new way of obtaining food and natural resources.

by REINHARD BREUER

Evolution has achieved a masterpiece in plants: over billions of years, organisms developed a sustainable way of generating energy based on the process of photosynthesis: sunlight, carbon dioxide and water are converted into carbohydrates, while oxygen is produced and released at the same time. It is a natural success story. But botanists and chemists see

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