The ESA has initiated ClimateChange Initiatives for all Essential Climate Variables. the Ocean Colour CCI is the only one of them that related to a "living" variable.
The Ocean Colour CCI (OC_CCI) project focuses on the Ocean Colour ECV encompassing water-leaving radiance in the visible domain, derived chlorophyll and inherent optical properties and will utilise data archives of from ESA’s MERIS and NASA’s SeaWiFS, MODIS and possibly CZCS (after careful evaluation) sensors archives.