Pacific Decadal Oscillation (PDO) + Atlantic Multidecadal Oscillation (AMO) versus Temperature (HADCRU3 Global Adjusted Mean) shows excellent correlation and cooling phase beginning in 2000. The AMO typically runs one quarter cycle behind the PDO and the cycles have a typical period of 20-35 years, with the last cycle lasting 31 years. Both have profound effects upon global sea (70% of global surface area) and land temperatures. Thus, the combined cycles may not peak again until ~ 2041-2080 with an interim cool period.
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