A new. decadally resolved record of the <sup>10</sup>Be peak at 41 kyr from the EPICA Dome C ice core (Antarctica) is used to match it with the same peak in the GRIP ice core (Greenland). This permits a direct synchronisation of the climatic variations around this time period. independent of uncertainties related to the ice age-gas age difference in ice cores. https://www.roneverhart.com/Kakkurengas-saadettava-rst-19x28-34x54-cm/