A
plant uses just 1 percent of the energy it receives from the sun to make glucose, whereas the
artificial system achieved roughly 10 percent efficiency in converting carbon dioxide to fuel, the equivalent of pulling 180 grams of carbon dioxide from the
air per kilowatt - hour of electricity generated.
We evaluated the relation between exposures and health - related outcomes by analyzing the rates of symptoms and abnormalities according to current and cumulative exposure to diacetyl, the predominant ketone in
artificial butter flavoring and in the
air at the
plant.