Oceanography: Anthropogenic carbon and ocean pH

@article{Caldeira2003OceanographyAC,
  title={Oceanography: Anthropogenic carbon and ocean pH},
  author={Ken Caldeira and M. E. Wickett},
  journal={Nature},
  year={2003},
  volume={425},
  pages={365-365}
}
Most carbon dioxide released into the atmosphere as a result of the burning of fossil fuels will eventually be absorbed by the ocean, with potentially adverse consequences for marine biota. Here we quantify the changes in ocean pH that may result from this continued release of CO2 and compare these with pH changes estimated from geological and historical records. We find that oceanic absorption of CO2 from fossil fuels may result in larger pH changes over the next several centuries than any… 

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References

SHOWING 1-10 OF 20 REFERENCES

Accelerating carbonate dissolution to sequester carbon dioxide in the ocean: Geochemical implications

Various methods have been proposed for mitigating release of anthropogenic CO2 to the atmosphere, including deep‐sea injection of CO2 captured from fossil‐fuel fired power plants. Here, we use a

The role of the southern ocean in uptake and storage of anthropogenic carbon dioxide

If global climate change reduces the density of surface waters in the Southern Ocean, isopycnal surfaces that now outcrop may become isolated from the atmosphere, tending to diminish Southern Ocean carbon uptake.

Seawater pH and Atmospheric Carbon Dioxide

Carbon Dioxide Pearson and Palmer (1) concluded that even though middle Eocene (43 Ma) global mean temperature was perhaps 5°C warmer than today, “atmospheric pCO2 was probably similar to modern

Geochemical consequences of increased atmospheric carbon dioxide on coral reefs

A coral reef represents the net accumulation of calcium carbonate (CaCO3) produced by corals and other calcifying organisms. If calcification declines, then reef-building capacity also declines.

Aftermath of the end‐Cretaceous mass extinction: Possible biogeochemical stabilization of the carbon cycle and climate

In the aftermath of the Cretaceous/Tertiary (K/T) boundary event (∼65 m.y. ago), pelagic carbonate productivity was greatly reduced for several hundred thousand years. A decrease in carbonate

Evidence for a higher pH in the glacial ocean from boron isotopes in foraminifera

RECORDS of past changes in the pH of the oceans should provide insights into how the carbonate chemistry of the oceans has changed over time. The latter is related to changes in the atmospheric CO2

Potential Impacts of CO2 Injection on Deep-Sea Biota

In their Perspective, Seibel and Walsh warn that even small perturbations in COor pH may have important consequences for deep-sea ecosystems and for global biogeochemical cycles.

Reduced calcification of marine plankton in response to increased atmospheric CO2

It is suggested that the progressive increase in atmospheric CO2 concentrations may slow down the production of calcium carbonate in the surface ocean, as the process of calcification releases CO2 to the atmosphere.

Biogeochemical constraints on the Triassic‐Jurassic boundary carbon cycle event

The end‐Triassic mass extinctions represent one of the five most severe biotic crises in Earth history, yet remain one of the most enigmatic. Ongoing debate concerns the environmental effects of the

Climate change 2001 : the scientific basis

Summary for policymakers Technical summary 1. The climate system - an overview 2. Observed climate variability and change 3. The carbon cycle and atmospheric CO2 4. Atmospheric chemistry and