360 Climate Management Issues
a relatively pure stream of CO
2
that has been captured and compressed.
The CO
2
could be loaded onto a ship and injected directly into the ocean or
deposited on the sea oor. CO
2
loaded on ships could be either dispersed
from a towed pipe or transported to xed platforms feeding a CO
2
lake on
the sea oor. The CO
2
must be deeper than 3 kilometers, because at this
depth, CO
2
is denser than seawater.
Relative to CO
2
accumulation in the atmosphere, direct injection of CO
2
into the ocean could reduce maximum amounts and rates of atmospheric
CO
2
increase over the next several centuries. Once released, it would be
expected that the CO
2
would dissolve into the surrounding seawater, dis-
perse, ...