I would add to the Die Kalte Sonne post below that the
"Levitus et al.  estimate global temperature anomalies using extensive interpolation of the gridded anomaly fields. A modified version of the time series from Levitus et al. , of mean temperature anomaly 0–400 m, averaged only over gridboxes with data, is shown in Figure 2b. Their time series suggests a more gradual warming since the 1950s than in our analysis. Differences between the two 0– 400m time series may be due to the XBT corrections applied, mapping techniques employed, and/or differences in data and quality control decisions for the data. For instance, modifying the mapping method described here to make it more similar to the method used by Levitus et al.  by not applying the depth extension to shallow profiles results in a change in calculated mean temperature anomaly 0–400 m of < 0.05 C for years prior to 1955, < 0.02 C 1955–1970, and < 0.01 C after 1970. Regarding bias corrections, Lyman et al.  found that differences due to XBT bias corrections were the major factor in differences between ocean heat content estimates. A more detailed discussion of the differences between the two curves is beyond the scope of the present work. However, the differences between the time series are smaller than their respective uncertainty bounds and both time series show the same increase of about 0.2 C since the mid-1950s."
Using the above temperature changes from
1900-1955: < 0.0009C/yr
1955-1970: < 0.0001C/yr
1970-2010: < 0.00025C/yr
Therefore, the paper would imply that the rate of upper 400 m ocean warming was ~3.6 times faster from 1900-1955 compared to 1970-2010, a deceleration of ocean warming in defiance of anthropogenic global warming theory, and the opposite of the acceleration claimed by the "Skeptical Science" website and by other alarmists.
Goggle translation from German [with apologies] from Die Kalte Sonne:
The search for the 'missing heat' in the oceans ends with bust: Deep layers of the ocean have cooled over the past 20 years