Consequently, phytoplankton activity will decline with a concomitant fall in the production of dimethyl sulfide (DMS). In a reverse of the CLAW hypothesis, this decline in DMS production will lead to a decrease in cloud condensation nuclei and a fall in cloud albedo.
As phytoplankton activity decreases, so does the production of dimethyl sulfide (DMS).  This reversal of the CLAW hypothesis leads to a drop in cloud condensation nuclei and a decrease in cloud reflectivity.