In an earlier paper De Jager et al. (2018) studied the relation between the intensity variations of the variable equatorial and polar solar magnetic energy sources and that of the average terrestrial northern hemisphere ground temperature. It was found that during the period 1610 to about 1920 the variation in the smoothed terrestrial temperature and those of the solar magnetic radiation are well correlated but that after that an additional temperature increase became prominent, to reach around

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... the year 2000 a value of about one degree above the sun-dependent forecast. In the present paper an additional aspect of the above material is described, and we find that, apart from the above mentioned features, there is a delayed component of the sun-related heating with a time lag of about 16 years. The resulting relation between the variable flux of the solar magnetic energy and the average - smoothed – northern hemisphere ground temperature is presented in our final diagram, Fig. 13. Our results confirm earlier findings by other authors that ascribe such a time lag to glacier warming and cooling.