It’s actually called a grand solar minimum. They come around every 206 years or so. Correlates with decreased sun activity. The Dalton minimum aided by eruption of Mt. Tambuora produced the Year with out a summer the 1800s.
They also correlate with increased seismic and volcanic activity. The big one on the New Madrid fault line was during that same time period.
The current minimum has been named the Eddy Minimum. Temps and sea levels have already started to decline.
Seriously. Does this mean the beginning of an ice age?