The slowed surface warming is due in large part to changes in ocean cycles, particularly in the Pacific Ocean, causing more
efficient ocean heat uptake, thus leaving less heat to warm surface temperatures.
These studies in combination with Guemas et al. (2013) and Balmaseda et al. (2013) suggest that the more
efficient ocean heat uptake is a temporary effect that will sooner or later reverse and lead to accelerated surface warming.
Not exact matches
Along those lines, Watanabe et al. (2013) showed that
ocean heat uptake has become more
efficient over the past decade, which is consistent with the observations of Balmaseda et al. (2013), who found an unprecedented transfer of
heat to the deep
oceans over the past decade, consistent with the modeling in Meehl et al (2013).
If fact it's probably a better idea to think of La Nina simply being more
efficient heat uptake by the
ocean, and El Nino being less
efficient heat uptake, with a consequence of less or more
heat being available to transfer to the atmosphere, than to think of El Nino as warming and La Nina as cooling.
So why has
ocean heat uptake become more
efficient over the past decade instead?