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The animalkindom generate carbondioxide in excess of oxygen. The plant kingdom generate oxygen in excess of carbondioxide by the help of Chlorophyl and Sunlight. Is there any Research going in the direction of converting excess carbondioxide to Oxygen Synthetically so that the balance can be maintained

There is the Einsten relation between Matter and Energy as E= MC2. My questionco relatedhis can be co related to Space and Time