However, since their methodology suppresses most of the high frequency variability, one needs to be cautious when making comparisons between their reconstruction and relatively rapid events like the
global warming of the last century.
The 2485 year record is long enough to permit Fourier analysis on the first half replicate the temperature record of the second half and forecast a temperature decline from 2006 to 2068 that wipes out
the warming of the last century.
Also, I agree that
the warming of the last century will not be the same as the last.
I guess tho since the deep oceans take so long to turn over most of
the warming of the last century would show up in the top 700m anyway.