The future of the currents, whether slowing, stopping or reversing (as was observed during several months measurements), could have a profound effect on regional weather patterns — from colder winters in Europe to a much warmer Caribbean (and
hence warmer sea surface temperatures to feed hurricanes).
Not exact matches
The problem is that for most purposes (fluxes of heat into the oceans, and
hence ocean
warming and
hence sea level rise; or biosphere responses) what you care about * is * the
surface temperature.
Hurricanes stirr up the
sea (mixing or Ekman pumping), and if there is a thin
warm surface layer, colder water underneath will be brought up, and
hence give rise to lower
surface temperatures (SST).
However, ocean
temperatures have
warmed almost everywhere on the planet, with 0.5 ºC being the global mean rise of
sea surface temperature,
hence Trenberth's reasonable estimate that this much is the contribution from global forcings like CO2.