qMost
models show
weakening of the ocean thermohaline circulation which leads to a reduction of the heat
transport into high latitudes of the Northern Hemisphere.
qThe
current projections using climate models do not exhibit
a complete shut-down of the thermohaline circulation by 2100.
qBeyond 2100, the thermohaline
circulation could completely, and possibly irreversibly, shut-down in
either hemisphere if the change in radiative forcing is large enough and applied
long enough. scenarios.