Are global cloud albedo and climate controlled by marine phytoplankton? Schwartz S. E. Nature 336, 441-445 (1988); doi:10.1038/336441a0 .

The recent suggestion that dimethylsulphide emissions by marine phytoplankton control global albedo and mean temperature would also imply a strong climatic influence of man-made SO2. Anthropogenic SO2 emissions exceed marine emissions of dimethylsulphide globally and are confined largely to the Northern Hemisphere. But no such influence of SO2 emissions is found either in the present cloud component of planetary albedo or in 100 year temperature records.

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