Computer models reveal that exoplanets with very saline oceans could have circulation patterns opposite to that on Earth, resulting in dramatic warming of their polar regions, possibly extending their range of habitability. (astronomynow.com)
The paper also found that warming would be faster in the Northern Hemisphere compared with the Southern Hemisphere, and that if geoengineering were used to suppress an even more dramatic warming scenario — say, 2 percent annual increases in CO2 concentrations — the rapid climate changes would be even faster after an abrupt suspension of the experiment. (scientificamerican.com)
Very dramatic warming effects occur on a vast time scale, over decades and centuries, so we are unlikely to witness them in our lifetimes. (ase.tufts.edu)