"...water at a depth of 4,500 metres in the Weddell Sea warmed by a tenth of a degree Celsius between 1989 and 2005, although the warming trend may have begun earlier. The latest work, by researchers from the Alfred Wegener Institute for Polar and Marine Research in Bremerhaven, found that temperatures have cooled slightly since 2005..."
(Nature news, April, 30th, 2008)

From the abstract of the article Amos has mentioned:

"we make the following forecast: over the next decade, the current Atlantic meridional overturning circulation will weaken to its long-term mean; moreover, North Atlantic SST and European and North American surface temperatures will cool slightly, whereas tropical Pacific SST will remain almost unchanged. Our results suggest that global surface temperature may not increase over the next decade, as natural climate variations in the North Atlantic and tropical Pacific temporarily offset the projected anthropogenic warming."

Advancing decadal-scale climate prediction in the North Atlantic sector, N. S. Keenlyside, M. Latif, J. Jungclaus, L. Kornblueh & E. Roeckner, Nature 453, 84-88 (1 May 2008)

Wolfgang