The American Geophysical Union has released an interesting report (sample chart below) into deep-sea temperatures for the last 25000 years, published by the AGU via an electronic journal from G3. The report correlates known climate change events with major variations in the bottom water temperature on the sea floor throughout this period. The report was available in HTML or as a PDF download. There is a noted periodicity in the major change events across the past 25000 years. Coincidently, Nibiru's orbital frequency of 3650 years seems to fit within the bounds of this periodicity. Nibiru's frequency can be defined in terms of the number of years before present by the following sequence:
3650, 7300, 10950, 14600, 18250, 21900, 25550
Offered by Gino.