Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms

@article{Orr2005AnthropogenicOA,
  title={Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms},
  author={James C. Orr and Victoria J. Fabry and Olivier Aumont and Laurent Bopp and Scott C. Doney and Richard A. Feely and Anand Gnanadesikan and Nicolas Gruber and Akio Ishida and Fortunat Joos and Robert M. Key and Keith Lindsay and Ernst Maier‐Reimer and Richard J. Matear and Patrick Monfray and Anne Mouchet and Raymond G. Najjar and Gian-Kasper Plattner and Keith B. Rodgers and Christopher L. Sabine and Jorge L. Sarmiento and Reiner Schlitzer and Richard Slater and Ian J. Totterdell and Marie-France Weirig and Yasuhiro Yamanaka and Andrew Yool},
  journal={Nature},
  year={2005},
  volume={437},
  pages={681-686}
}
Today's surface ocean is saturated with respect to calcium carbonate, but increasing atmospheric carbon dioxide concentrations are reducing ocean pH and carbonate ion concentrations, and thus the level of calcium carbonate saturation. Experimental 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. Here we use 13 models of the ocean–carbon cycle to assess calcium… 
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