Description:
More proton bubbles surface together with more whirls (sunspots). The positive surface repulses the positive cosmic rays and this lower flux of positive particles produces less radiocarbon in the Sun and Earth. This electric evidence is measurable with the aid of the tree-ring-calender. Therefore, the radiocarbon curve should anticorrelate to the sunspot- or the luminosity-curve. And, it does ! The figure above shows, for the first time, a comparison of these two important Sun-related curves. The clear anticorrelation is a measured fact and confirms the Electric Sun model.

Source:
The book: "The Electric Universe"