
428 Engineering Response to Climate Change
Distinct from attempting to increase biological uptake, suggestions
have also been made about how to increase oceanic uptake, generally
in ways that would also help to reduce ocean acidication. For example,
House etal. (2007) suggested an approach that imitated natural silicate
weathering by electrochemically removing HCl from the ocean in a way
that would increase CO
2
uptake and, over the very long term, increase
deposition of calcium carbonate. Although implemented at a power plant
to have access to the elevated CO
2
concentration in the exhaust plume,
Rau and Caldeira (1999) proposed that limestone ...