Research report 2012 - Max Planck Institute for Meteorology

Ocean biogeochemistry in the framework of climate engineering

Authors
Ilyina, Tatiana
Departments
Ozean im Erdsystem
Summary
Climate Engineering employs technical methods to mitigate climate change without lowering anthropogenic CO2 emissions. One of these methods, the artificial increase of ocean alkalinity, has been proposed to enhance the oceanic uptake of atmospheric CO2 and counteract the ongoing ocean acidification. We used a global biogeochemical model to show that artificial ocean alkalinity input must be 200 times higher than the input by natural weathering flux to hold the global seawater pH close to today’s value. The effects on ocean biogeochemistry would be substantial.

For the full text, see the German version.

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