@article{fdi:010079805, title = {{R}eemergence of anthropogenic carbon into the ocean's mixed layer strongly amplifies transient climate sensitivity}, author = {{R}odgers, {K}. {B}. and {S}chlunegger, {S}. and {S}later, {R}. {D}. and {I}shii, {M}. and {F}rolicher, {T}. {L}. and {T}oyama, {K}. and {P}lancherel, {Y}. and {A}umont, {O}livier and {F}assbender, {A}. {J}.}, editor = {}, language = {{ENG}}, abstract = {{A} positive marine chemistry-climate feedback was originally proposed by {R}evelle and {S}uess (1957, ), whereby the invasion flux of anthropogenic carbon into the ocean serves to inhibit future marine {CO}(2)uptake through reductions to the buffering capacity of surface seawater. {H}ere we use an ocean circulation-carbon cycle model to identify an upper limit on the impact of reemergence of anthropogenic carbon into the ocean's mixed layer on the cumulative airborne fraction of {CO}(2)in the atmosphere. {W}e find under an {RCP}8.5 emissions pathway (with steady circulation) that the cumulative airborne fraction of {CO}(2)has a sevenfold reduction by 2100 when the {CO}(2)buffering capacity of surface seawater is maintained at preindustrial levels. {O}ur results indicate that the effect of reemergence of anthropogenic carbon into the mixed layer on the buffering capacity of {CO}(2)amplifies the transient climate sensitivity of the {E}arth system.}, keywords = {ocean ; feedback ; carbon cycle ; modeling}, booktitle = {}, journal = {{G}eophysical {R}esearch {L}etters}, volume = {47}, numero = {18}, pages = {e2020{GL}089275 [9 ]}, ISSN = {0094-8276}, year = {2020}, DOI = {10.1029/2020gl089275}, URL = {https://www.documentation.ird.fr/hor/fdi:010079805}, }