Figure 2: The spatial correlation in the annual mean SST from the COBEv2 dataset at the location where the coralline algal proxy was collected (indicated by the ‘+’) with the annual mean SST from the COBEv2 dataset over the North Atlantic Ocean for the period 1900–2007.

The shaded regions indicate where the correlation is statistically significant at the 95th percentile confidence interval. Figure produced using MATLAB R2013b (http://www.mathworks.com).