http://www.usatoday.com/weather/news/2004-07-06-hurricanes-plankton_x.htm
The stronger the storm, the larger and longer the bloom of plankton, he said.
These tiny plants grow in great numbers when they bloom, absorbing carbon dioxide from the atmosphere. When they die they sink to the bottom, trapping the excess carbon for thousands of years
And, he added, there is a competing effect, because when the storms toss the sea around the water can release dissolved carbon dioxide, somewhat like a shaken can of soda loses its fizz.
It's not known whether the two effects balance out or if the plankton helps reduce gasses in the air, Babin said.
There is some kind of plankton bloom in the Gulf of Mexico, red tide or something. A few complaints are drifting in to authorities, although what authorities might do about it is questionable. Maybe just make a note.