Raupach, Michael; Gloor, Manuel; Sarmiento, Jorge L; Canadell, J.G.; Frolicher, Thomas; Gasser, T.; Houghton, Richard A; Le Quere, C.; Trudinger, C.M.
Through 1959-2012, an airborne fraction (AF) of 0.44 of total anthropogenic CO2 emissions remained in the atmosphere, with the rest being taken up by land and ocean CO2 sinks. Understanding of this uptake is critical because it greatly alleviates the emissions reductions required for climate mitigation, and also reduces the risks and damages that adaptation has to embrace. An observable quantity that reflects sink properties more directly than the AF is the CO 2 sink rate (kS), the combined...[Show more]
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