The scheme was originally the brainchild of a Russian climate scientist, Mikhail Budyko, in the 1970s.

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It was Budyko, in the nineteen-sixties, who first suggested cooling the earth by putting sulfur particles in the sky.

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During the nineteen-nineties, he spent a year in the Soviet Union, at the Leningrad lab of Mikhail Budyko, who is considered the founder of physical climatology.

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