Whatever else goes on, the Sun will be cooling the Earth for the next 50 years, according to Prof. Valentina Zharkova. The mechanism is somewhat roundabout. In 2020 the Sun began a period of reduced activity called a Grand Solar Minimum. During such periods, the Sun’s magnetic field weakens such that all the planets in the solar system become exposed to higher levels of cosmic radiation. On Earth the increase in “cosmic rays” will induce greater cloud formation. The planet will cool, changing weather patterns and disrupting agriculture.
If the prediction is true, it is the biggest imaginable challenge to our assumptions about climate change. It would mean, for example, that instead of converting to renewable energy sources, we should be investing in stable energy sources that will be reliable during the cold years.
As you’d expect, Zharkova’s hypothesis has critics. Her research, technically, predicts only the GSM, whereas the specific impacts of a GSM on climate are merely speculation. Thus, the two major criticisms are a) Zharkova’s GSM prediction may be flawed, and b) her speculations about climate impacts may be unrealistic.
Direct observation should help to resolve both areas of controversy fairly soon, at least within the life spans of today’s children. But the issues are not merely academic. Long before our children reach retirement age humanity will know whether our planning for the future took the best direction.