@article{fdi:010041472, title = {{A}nthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms}, author = {{O}rr, {J}.{C}. and {F}abry, {V}.{J}. and {A}umont, {O}livier and {B}opp, {L}. and {D}oney, {S}.{C}. and {F}eely, {R}.{A}. and {G}nanadesikan, {A}. and {G}ruber, {N}. and {I}shida, {A}. and {J}oos, {F}. and {K}ey, {R}.{M}. and {L}indsay, {K}. and {M}aier {R}eimer, {E}. and {M}atear, {R}. and {M}onfray, {P}. and {M}ouchet, {A}. and {N}ajjar, {R}.{G}. and {P}lattner, {G}.{K}. and {R}odgers, {K}.{B}. and {S}abine, {C}.{L}. and {S}armiento, {J}.{L}. and {S}chlitzer, {R}. and {S}later, {R}.{D}. and {T}otterdell, {I}.{J}. and {W}eirig, {M}.{F}. and {Y}amanaka, {Y}. and {Y}ool, {A}.}, editor = {}, language = {{ENG}}, abstract = {{T}oday's surface ocean is saturated with respect to calcium carbonate, but increasing atmospheric carbon dioxide concentrations are reducing ocean p{H} and carbonate ion concentrations, and thus the level of calcium carbonate saturation. {E}xperimental evidence suggests that if these trends continue, key marine organisms - such as corals and some plankton - will have difficulty maintaining their external calcium carbonate skeletons. {H}ere we use 13 models of the ocean - carbon cycle to assess calcium carbonate saturation under the {IS}92a 'business-as-usual' scenario for future emissions of anthropogenic carbon dioxide. {I}n our projections, {S}outhern {O}cean surface waters will begin to become undersaturated with respect to aragonite, a metastable form of calcium carbonate, by the year 2050. {B}y 2100, this undersaturation could extend throughout the entire {S}outhern {O}cean and into the subarctic {P}acific {O}cean. {W}hen live pteropods were exposed to our predicted level of undersaturation during a two-day shipboard experiment, their aragonite shells showed notable dissolution. {O}ur findings indicate that conditions detrimental to high-latitude ecosystems could develop within decades, not centuries as suggested previously.}, keywords = {}, booktitle = {}, journal = {{N}ature}, volume = {437}, numero = {7059}, pages = {681--686}, ISSN = {0028-0836}, year = {2005}, DOI = {10.1038/nature04095}, URL = {https://www.documentation.ird.fr/hor/fdi:010041472}, }