Figure from Björck (2000) showing from left to right, the net June insolation (W/m2) from 100 kyr BP up to the present at 650 N latitude (Berger, 1978), the 18O/16O record from 100 kyr BP up to present, and between 11.5-0 kyr BP, in the GRIP ice core (Johnsen, 1997), the residual 14C record between 11.5-0 kyr BP, which is based on 14C dates on German pines (Stuiver, 1998), and denotes the atmospheric 14CO2 activity, expressed as the per mil deviation of the 14C activity from the National Institute af Standards and Technology 14C standard, after decay and fractionation (Stuiver, 1977), after subtraction of a 500 year running average to remove the long term trend, the timing of the southward shifts of cool ice-bearing surface waters deep into the subpolar N Atlantic during the Holocene (Bond, 1997, 1999), and the 10Be flux in GISP2 estimated by interpolating the 10Be data (Finkel, 1997) on 10 yr intervals with a smoothed accumulation, and by a gradual reduction of the GISP2 time scale (Meese, 1997) up to 8.2 kyr BP to conform with the GRIP time scale.