Actually Emiliana huxleyi (one example)is doing quite well as can be seen from recent NASA satellite photos. As more CO2 is available and in areas of upwelling blooms are taking place. One major factor in these occurrences is a low Sunspot number. Galactic Cosmic Ray flux is higher now as a result, which comes to my theory. First of all the disturbance of the Climate for the last 60 years is due to explosions of Thermonuclear blasts in the Ocean which destroyed ecosystems and biodiversity. This should be obvious unless you are just plain blind to the facts. Phytoplankton the base of the food web was wasted and Marine bacteria(such as Roseobacter class) took its place recycling Carbon but producing no Oxygen or DMS. It has taken years for the phytoplankton to recover. Anymore explosions, nuclear waste or oil spills could set back this delicate process of Life. Here is my theory: GCR (which comes from Outer Space) has a negative impact on bacteria in the trophic zone of the Ocean causing them to migrate or die. Also Zooplankton such as Krill and Copepods will be damaged by the high frequencies. Cyanobacteria protected by the calcium shells are free to float near the surface and not molested by bacteria and zooplankton at this time of High GCR flux will bloom in large swirls in the Ocean. This is an ancient partnership that is a symbiosis at least a hundred million years old. It is the basis of our Oxygen atmosphere we breathe today. It is the GCR impact on our world that has mutated a life form and caused a beautiful thing to happen as these marvelous little globes float near the surface of the Sea. Coccolithophores take in the Carbon dioxide and make sugars and water in the process of photosynthesis. They also produce DMS to deter Zooplankton and which the bacteria feed on as a Carbon source. Of course the phytoplankton need sunlight and stay near the surface to get rays, the Sun also emits plenty of harmful UV and even cosmic ray frequencies. So most of the feeding occurs at night however much less occurs at high GCR flux. Because there is less Solar wind with a low Sunspot number the Galactic Cosmic rays enter the atmosphere. DMS aerosols have been shown to be in higher concentrations of clouds above phytoplankton blooms than elsewhere. The phytoplankton not only produce Oxygen and water but make clouds and even change the course of hurricanes which feed off their Energy. It is the little things that matter. So let us protect these precious creatures. They make life possible for the Whales and Us too.