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The greenhouse gas consumed by plankton and removed from the surface ocean when the dying cells sink to depth makes way for the uptake of more CO2. In a way, the tiny organisms act as a biological conveyer belt for the transport of carbon dioxide out of the surface and into the deep ocean.
Effect on Surface Temperature. The natural greenhouse effect raises the Earthâs surface temperature to about 15 degrees Celsius on averageâmore than 30 degrees warmer than it would be if it didnât have an atmosphere.